Vapour overdrive project.

[De Ranged]

Cheers Bill I will do both mods when I get back to the toys transfercase.... I like that double seal that would be good on river runs over summer

[bill van snorkle]

Cheers Bill I will do both mods when I get back to the toys transfercase.... I like that double seal that would be good on river runs over summer

The double back to back seal with lubrication between them is not an original idea of course. I first read about it being employed on the fully waterproofed Austin Champs of the 1950's.

[tacr2man]

The double back to back seal with lubrication between them is not an original idea of course. I first read about it being employed on the fully waterproofed Austin Champs of the 1950's.

As long as it doesnt end up being as heavy as a Champ

[bill van snorkle]

As long as it doesnt end up being as heavy as a Champ

Yes in most respects the Champ was an over complex, over weight, and not particularly capable pile of pigeon droppings. The 5 spd gearbox, if the reversing box was integrated with it, would be interesting to graft on to the front of a LandRover transfercase for 10 forward and reverse gears though.

[Jamie_grieve]

It's late and I'm thinking out my ass a bit but how easily could a planetary gearset be arranged where the clutch normally lives, maybe with a hollow sun gear as a quill shaft connected to the clutch plate driving a set of planetaries living in the bellhousing finally driving another hollow gear going through the quill shaft and splined to the gearbox where the middle of the clutch plate would normally be. This bit might have to double up as a release bearing too. The clearances on the spur gears would maybe want to be considered due to the relative movements of everything concerned This could give an alternative set of ratios and be made in such a fashion to be bolted in and out of a standard transmission maybe with just an alternative clutch plate and little modification to the bellhousing. Does any of that make sense to anyone not sleeping?

[bill van snorkle]

It's late and I'm thinking out my ass a bit but how easily could a planetary gearset be arranged where the clutch normally lives, maybe with a hollow sun gear as a quill shaft connected to the clutch plate driving a set of planetaries living in the bellhousing finally driving another hollow gear going through the quill shaft and splined to the gearbox where the middle of the clutch plate would normally be. This bit might have to double up as a release bearing too. The clearances on the spur gears would maybe want to be considered due to the relative movements of everything concerned This could give an alternative set of ratios and be made in such a fashion to be bolted in and out of a standard transmission maybe with just an alternative clutch plate and little modification to the bellhousing. Does any of that make sense to anyone not sleeping?

I don't see any reason why that couldn't work Jaime. Because that unit would only ever see engine torque, as opposed to engine torque multiplied by main gearbox ratios, the planetaries would not need to be as substantial as those on a unit fitted after the gearbox. It may be even possible to fit it within the wasted 4 or so inches of bell housing length of say an LT95 where the FC101 bell housing is that much shorter than on the RRC/110/Stage One V8's for example. Probably quite doable with the unused planetaries of the GKN overdrive I pinched the bits off for the crawler box adaption.

Thanks a lot Jaime. your post will give me another couple of sleepless nights thinking of how to make it work.Lol.

[o_teunico]

Spanish company ILERTECA developed in the 90s an overdrive that was located between engine and box. It was used succesfully in Discoveries in competitions ( Morroco). In 2000 they asked for a patent.

http://www.oepm.es/pdf/ES/0000/000/02/14/96/ES-2149679_A1.pdf

[Bowie69]

Amazing what you can dig up o_teunico...

[Jamie_grieve]

Wow indeed, good job!! Exactly the thing I had in my minds eye only better thought out and better than I could ever have come up with. Not before time either, poor Bill must be on his 101st cup of coffee by now nutting this out.

Does the link below show an English translation to the drawings?

http://translate.google.co.uk/translate?hl=en&sl=es&u=http://www.oepm.es/pdf/ES/0000/000/02/14/96/ES-2149679_A1.pdf&prev=/search%3Fq%3Dhttp://www.oepm.es/pdf/ES/0000/000/02/14/96/ES-2149679_A1.pdf%26num%3D100

[bill van snorkle]

Spanish company ILERTECA developed in the 90s an overdrive that was located between engine and box. It was used succesfully in Discoveries in competitions ( Morroco). In 2000 they asked for a patent.

http://www.oepm.es/pdf/ES/0000/000/02/14/96/ES-2149679_A1.pdf

Sounds good O'teunico. unfortunately Internet explorer doesn't like the link, or any link via Zeon for that matter, so I can't see it.

Yes Jaime, I ran out of coffee trying to sort that one out. Put it on the back burner til I finish off the half dozen other mental and physical projects currently depleting the ever diminishing resources of my imagination.

[Jamie_grieve]

Summary:

It comprises a transmission system (3,5,6,12,20)

capable of adopting at least a first position,

in which establishes a first relationship of trans-

mission between an input shaft and an output shaft,

and a second position in which establishes a se-

second transmission ratio between these axes, is

inserted between the output shaft of the motor and the shaft

entrance to the gearbox, and further comprises

clutch means (15,16) adapted to allow

system over said first transmission

position to said second position and vice versa, and I-

control means (30) of said clutch means

(15,16).

Lets double the number of gears, and is applicable

ble to vehicles series so fast and easy.

DESCRIPTION

Particularly speed multiplier

for vehicles.

The present invention relates to a multi-

speed multiplier, particularly for

vehicles, comprising a transmission system

mission capable of adopting at least two positions

tions, a first position in which he states

a first transmission ratio between a shaft

input and an output shaft and a second po-

sition in which establishing a second relationship

transmission between these axes.

This device allows you to double the number

gears, and is applicable to vehicles series

fast and simple way.

BACKGROUND OF THE INVENTION

Mechanical devices are known, more or less

We sophisticated applied to changing sea-

chas of a vehicle to increase the number

gear, is well known, for example,

"Overdrive", which is mounted to the gearbox output

changes and provides a new combination

Gear leading to May 1

to

¯

or long-

permarcha.

These devices have the advantage of adding

a new transmission ratio between the axis of

motor and gearbox output shaft but have

several drawbacks that limit their application.

First, the known mechanisms

pose a number of problems arising from their

mounting the gearbox output. They tend to be vo-

light, and can not be installed in any

vehicle, in addition, allow the mayorıaunicamente

ten to add an overdrive.

The utility model U 201763 proposed a

multiplier mounted outlet box

changes, which doubled the number of marches

vehicle and which is satisfactory in some applications

tions, however, now been found that

can improve the performance and the compatibility

ity of known devices.

Description of the invention

The aim of the present invention is to propose

ner multiplier speeds not pre-

present the aforesaid drawbacks, which may apply

Carse any vehicle marches doubling

the same, and installation is fast and sen-

cilla.

In accordance with this objective, the multiplier

speed according to the invention is character-

ized by the fact that is inserted between the shaft

engine output and the input shaft of the box

changes of a vehicle, and further comprises

clutch means adapted to allow

transmission system over said first

position to said second position and vice versa, and

said control means clutch means.

The device offers a number of advantages im-

portant.

First, to duplicate all

gears of the gearbox, including re-

conductive in the case of 4x4 vehicles. This

lead to a much better poten-

tion engine, acquiring greater flexibility

When choosing a relationship. Eg

For overdrive, the device allows

30% increase to top speed, re-

ducing also the regime. Is therefore

reduces the emission of greenhouse gases, and

increases the life of the engine and its components

tees. Also helps reduce consumption

fuel.

Thanks to its location, can be installed

easily and quickly as a separate kit

tooth, between the engine and the gearbox

any vehicle. This location also makes

compatible with all types of gear boxes, re-

conductive, differential locks, etc.., making the

Maximum performance thereof.

Finally, note that deletes all

Typical problems of multi-joint mount

multipliers such as "overdrive" at the end of the

gearbox.

Preferably, in the first position the ve-

speed of rotation of the shaft of the gearbox

is higher than the motor shaft (upshift)

and in the second position the speed of rotation

both axes is the same (low gear).

The multiplier effect is thus adding a

longest running each of the marches of

gearbox.

In a preferred embodiment of the invention,

the transmission system comprises a corona

driven in rotation from the motor shaft,

a planetarium that is coupled in rotation with

the axis of the gearbox, and at least one

satellite meshing with said crown and said

planetarium, said satellite mounted on a

swivel.

Advantageously, the clutch means com-

comprise a first clutch when this em-

energetic blocks in rotation the turntable,

so that the rotation of the crown is transmitted

deeste the satellite and the planetarium, and a second

when this clutch clutch transmits

the rotation of the swivel to the planetarium

with interposition of a transmission element;

Control means the first clutch clutching

desembragan gue and second to obtain di-

said first position of the transmission system,

and desembragan clutching the first clutch and the

second in order to obtain said second position

transmission system.

This configuration has the advantage of per-

allows moving from one position to another, ie

long or short march back without disconnect

tar engine change (without pressing the pedal

clutch of the vehicle) so that the ma-

maneuver can be performed very quickly, without

slow down and without down torque to

zero, with the consequent advantages, for example,

under conditions of competition.

Also advantageously, the clutches are

panied multi-plate clutch in oil bath.

Thus, the clutch acts with more sua-

activity and is more durable and has a perfor-

nes far superior to standard clutch.

In one embodiment, the first clutch is

disks coupled in rotation with the support

satellite rotating and fixed disks, and follow-

second clutch is coupled disks

rotation with said support and engagement disks

two with said transmission.

According to a particularly

advantage of the invention, said satellite is a

eccentric wheel mounted only on the co-

rona and planetarium, which has a toothed

engaging the outer crown and a den-

internal state that meshes with the planetary man-

taking the wheel meshed with crown and

warming by two diametrically opposed areas.

This new configuration of the satellite man-

has the size of the multiplier at a level

adpatarlo allowing virtually any

vehicle in substitution by standard clutch.

According to one aspect of the invention, the means

control valve comprising a regulatory

and two cylinders that control solenoid

Hydraulic, each of which drives one of

clutches.

Preferably, said check valve and

said solenoid are governed through

a knob in the Cabin to pass up

short to long and back up, and through the

vehicle clutch pedal to disengage

the two clutches simultaneously.

Also preferably, the regulating valve

dora has means to cushion the manio-

bra of the two clutches engaged.

Thereby avoiding an abrupt clutch

of the discs when the driver releases the pedal

clutch.

BRIEF DESCRIPTION OF THE DRAWINGS

For more understanding of what has been ex-

position is accompanying drawings in which is-

schematically and solely by way of example

not limited to, show a practical case of

realization.

In said drawings,

Figure 1 is a schematic sectional view

longitudinal speed multiplier

ties of the present invention;

Figures 2a, 2b are schematic

longitudinal section of a valve regulated

troller used in multiplier

invention in two operating positions

tion, and

Figures 3 and 4 are schematic

cross section of two embodiments al-

alternatives gears of multiply-

dor.

Description of a preferred embodiment

Figure 1 shows schematically the ele-

Key elements of the multiplier according to the

invention. The device is mounted between the engine

and the gearbox, the clutch replacing

standard of the vehicle and the driver has

a controller for acting on the device.

The device causes, at the pleasure of driving

engine, a variation between the speed of shaft-sa

engine output and input speed cam-

Bio: As a result, each change relationship

(Each gear of the vehicle) is actually du-

complicated in a low gear, which coincides with the

Serial vehicle because the output shaft

engine and input shaft rotate at the change

same speed, and a high gear when the

driver operates the multiplier and the device

introduces a non-unity transmission ratio

between the engine output shaft and the input shaft

of change.

A drive pulley coupled to the shaft 2 is

engine output, and is input

multiplier, while a planetary three con-

tituye and the multiplier output is coupled

through a splined to the input shaft 4 (not

shown) of the vehicle gearbox.

The drive plate 2 is coupled to a co-

ring gear 5, which engages with one satellite

6 constituted as described below

with reference to Figure 3, a pre-wheel

sents both an external toothing 8 as a den-

internal state 9. The satellite toothing 9 6

turn meshes with a toothing 10 of the planetary

Three.

As best seen in the view of

Figure 3, the eccentric 6 is mounted satellite

respect to the ring gear and the planetary May 3

and always remaining wheel meshing entreestos

either swim in two diametrically

opposed.

The satellite 6 is mounted on a support 12

with interposition of suitable bearings 13, the

also support 12 can rotate, driven by the

rotation of the satellite in June.

The device also has two sets

clutch plates are denoted with the reference

ing 15 and 16, respectively. Half of the

disks of each set, 15a and 16a, respectively,

mind, are integral in rotation with the support

Satellite 12, as shown in Figure 1.

The other half of the clutch discs 15

(Disks 15b) are integral to the housing of the device

positive (not shown), and are therefore

permanently fixed. Meanwhile, the other mi-

16b tad clutch discs 16 are requested

DARIOS a transmission element 20 that is

coupled with the planetary rotation through three

of a key 21 or striatum.

In the following description, the clutches 15 and

16 are called "long clutch" and "em-

clutch of short "respectively. This so-

tion is that, for each gear of

vehicle gearbox, when em-

panty disk set the planetarium turns 16

the same speed as the motor shaft, so

that the relationship is the corresponding transmision

to the vehicle gearbox (low gear),

whereas when engaging the set of

15 the planetary disc rotates at a speed faster

top, and the transmission ratio is higher

(Long March).

When the clutch plates clutching

of short 16, the rotation of the crown 5 is trans-

6 and allows the satellite to its support deeste 12 which

16 through clutch drag element

20.This transmission, in turn, drives in ro-

planetarium Tacion 3 after the union by cha-

vein 21. The characteristics of this chain ci-

nematic are such that the rotation speed

planetarium is like the engine shaft.

In contrast, when clutching disks

long clutch 15, the transmission is

from the crown 5 to 6 and deeste satellite direct-

Planetary mind to 3, since the bracket 12

satellite is locked in rotation by the em-

clutch 15 (as mentioned, the discs 15b

deeste are fixed to the housing). This transmission

introduces a variation in the speed of the pla-

Monetary previous case (Long March).

The clutch discs 15 and 16 are

panied in oil bath for more performance

smooth and to be more durable.

Speed multiplier described com-

also comprises a hydraulic circuit

pump (not shown) for two cylinders 25,26

actuation of the clutches 15 and 16, respectively,

tively, and check valve 30, repre-

Tada schematically in Figures 2a, 2b.

The hydraulic cylinder 25 is fixedly mounted

multiplier housing while the ci-

cylinder 26 is secured to the transmission element

20 and rotates therewith.

The check valve 30 shown in FIG-

Figure 2 is designed to allow control of the

clutches 15 and 16 to go from short to long or

vice versa, via a button or a drive

Similarly, and also when you want to disengage

to change gear, pedal through

vehicle clutch.

For this, the valve 30 comprises a housing

house 31 in which are formed a series of ga-

Lérias of oil pressure and return connections

and are in communication with a housing

axial 32 which slides a rod 33. Between

the rod 33 and the housing 32 is interposed

a slider 34 which is externally one

plurality of recesses to allow, depending on their

position along the housing 31, open selectively

tively the passage between the different galleries.

Around the stem 33 are mounted one

valve spring 35 and a spring dispenser 36

whose mission is to give more or less pressure. On-

spring is mounted between two floating one Spanish-

ciador 37, which acts as a stop to prevent com-

Excessive spring pressure dispenser 36. A

shutter 38 closes the front of the housing

tion 32.

In the housing 31 is further formed a CA-

cavity 39 adapted to accommodate a solenoid

conventional (not shown) which controls the

Oil supply to the cylinders 25 and 26.

Figure 2a corresponds to a normal position

poorly functioning, ie, a position of

valve in which one of the cylinders 25 or 26

maintains the corresponding clutch engaged

15 or 16 (depending on the position of said

conventional solenoid), and the torque is

transmitted to the gearbox. Depending on

which of the clutches 15 and 16 is attached, the

be long or short march.

To change gears, for example 3

to

¯

to 4

to

¯

, The driver presses the clutch pedal

gue, which causes thanks to the configuration

the check valve 30, the drive if-

simultaneous of the two cylinders 25 and 26 and the unem-

clutch of the two sets of disks 15 and 16, of

so that the gearbox is disconnected

Tada engine, as in the case of a clutch

traditional, and the driver can change sea-

cha.

The rod 30 is coupled at its end

free the vehicle clutch pedal: when

the driver depresses the pedal, the rod 30 is

shifted from the position of Figure 2a to the

Figure 2b position, dragging the

slide 34, thanks to the presence of a plug

40 which is threaded to the end of the slider 34.

This movement of the slider opens the passage

oil between some housing Galleries

31 so that the two hydraulic cylinders 25

and 26 are actuated simultaneously to release

rar disks of the two clutches 15 and 16: in

Consequently, the drive shaft is disengaged from

gearbox, and the driver can change

gears.

When the driver has changed sea-

cha and stops the clutch, this re-

its initial position by the action of a corresponding

tooth spring (not shown), dragging with-

I keep the rod 33 back to the position of

Figure 2a, however, thanks to the provision

Springs 35 and 36, this movement is made

gradually, so that coupling is avoided

ing abrupt clutch discs between

other.

To move from one place to the corresponding short

sponding high gear, the driver must sim-

ply operation of a control, for example a

button which may be located on the lever

change: this drive through the

check valve 30 and the conventional solenoid

tion, change the position of the pistons of the ci-

cylinders 25 and 26, so that clutch discs

gue of short 16 are disengaged and discs

Long clutch 15 are clutched, at

which varies the speed of the planet and

Consequently the output of the gearbox,

passing a short march to the same gear

long, or vice versa.

Importantly, it is not necessary

press the clutch pedal for this step of

long or short to long to short: it has

logically the advantages of allowing manio-

bra faster and the torque does not drop to

zero during the maneuver.

Figure 3, as noted, represents

cross section position and configuration of the

Satellite 6: in this preferred embodiment, the satellite

This consists of a double-toothed wheel

8 and 9, mounted eccentrically to go rolling

between the crown and the planetarium March 5.

This structure has a number of advantages:

First, to limit the dimensions

multiplier, and thanks to these small di-

dimensions the device can stay without pro-

replacing the conventional clutch problems

of a vehicle, in addition, thanks to the diameter of

satellite, engagement with the crown and Planetarium

is carried out on a high number of teeth, ga-

suring quiet operation and a

minimum vibration.

However, the transmission between the crown

5 to planetary 3 could be done with a plu-

rality of satellites conventionally as

shown in Figure 4: in this case are mounted

Four satellites 6 around the circumference

3 planetarium, all coupled to a so-

support 12 as described for the realization

above.

Another possibility is to perform the transmission in-

between the drive pulley and the output shaft through

a gear train, instead of a system

crown, and planetary satellite in this case, one

gear be mounted on the support

Although herein is

been described and shown an embodiment with-

chalk device according to the present

Page 6

1. Multiplier speeds, particularly

mind for vehicles, comprising a system

transmission (3,5,6,12,20) able to adopt

at least two positions, a first position in

which establishes a first relationship of trans-

mission between an input shaft and an axis of sa-

output, and a second position in which he states

a second transmission ratio between these

axes, characterized by the fact that in-

inserted between the output shaft and the motor shaft

input gearbox of a vehicle, and

further comprises clutch means (15,16)

adapted to allow passage system

transmission from said first position to said-

second position and vice versa, and control means

(30) of said clutch means (15,16).

Two. Multiplier according to claim 1, character-

characterized by the fact that in the said primary

mere position the shaft rotation speed of

the gearbox is higher than the axis of the mo-

tor (Long March) and in said second position the

speed of rotation of both axes is the same

(Low gear).

Three. Multiplier according to claim 1

or 2, characterized by the fact that said

Transmission system comprising a crown (5)

driven in rotation from the motor shaft,

a planetarium (3) is coupled in rotation

with the axis of the gearbox, and at least

one satellite (6) meshing with said crown (5)

and with said planetary (3), said satellite

mounted on a swivel bracket (12).

April. Multiplier according to claim 3, character-

characterized in that said means

clutch comprising a first clutch (15)

that when this clutch blocks in rotation the

holder (12), so that the rotation of

the crown (5) is transmitted to the satellite (6) and deeste

the planetary gear (3) and a second clutch (16)

when this clutch transmits the rotation of

said holder (12) to the planetary (3) with

interposition of a transmission element (20),

and by the fact that the control means (30)

clutching the first clutch (15) and de-clutching

the second (16) to obtain said first position of the transmission system, and de-clutching the first clutch (15) and the second clutching

(16) to obtain said second position of

transmission system.

May. Multiplier according to claim 4, character-

characterized in that said clutch

gues (15,16) are multi-plate clutches panied ba

in oil.

June. Multiplier according to claim 5,

characterized by the fact that the pri-

mer clutch (15) has a disc (15a) coupled

Plados in rotation with the turntable (12)

the satellite (6) and fixed disks (15b), and said

second clutch (16) has a disc (16a)

coupled in rotation with said support (12) and

disks (16b) coupled with said

transmission (20).

July. Multiplier according to any of the preceding

claims 3 to 6, characterized by the fact

that such satellite (6) is mounted wheel unaunica

tada eccentric relative to the crown and the planet-

rio, which has an external toothing (8) in-

meshes with the crown (5) and internal teeth (9)

meshing with the planetary (3), keeping

engaged with said wheel and planetary corona

two diametrically opposed.

August. Multiplier according to any of the preceding

claims 4 to 7, characterized by the I-

fact that the control means comprise a

valve (30) and a solenoid that

control two hydraulic cylinders (25,26), each

one of which actuates one of the clutches

(15,16).

9. Multiplier according to claim 8, character-

characterized in that said valve

regulator (30) and said solenoid are governed

swim through a command in the Cabin for

shift from low gear to high gear and vice versa,

and through the vehicle clutch pedal

to disengage the two clutches (15,16) if-

simultaneously.

10. Multiplier according to claim 8

or 9, characterized by the fact that the valve

regulatory (30) has means (36) for love-

tiguar engaged maneuvering of the two em-

clutches (15,16).

6

× for all claims

Claims for n

◦

:

Realization of the report date

Examiner

Page

29.09.2000

L. Ruiz Lopez Ayllon Tower

1/1

[bill van snorkle]

Thanks Jaime, but that is too much to get my head around this early in the morning after a late night of cutting, welding and grinding.

[Jamie_grieve]

Were you cutting welding and grinding something interesting?

[landroversforever]

Were you cutting welding and grinding something interesting?

This is Bill, I'm sure of it!

[Snagger]

Hmmm... a bell housing mounted epicyclic overdrive with integrated clutches and solenoid operation that is fitted in place of the standard clutch system. I think that overdrive would have heat issues and would kill the crank shaft spigot bush in fairly quick order, but it's a nice idea otherwise - there's a lot of wasted space in the bell housing of the short stick LT77s and R380s, and maybe the automatics too (I have never seen the innards, so don't know how much of the void is taken up by the torque converter). It would be a tidy way of fitting an overdrive to a non-1.4 transfer box equipped vehicle, like RRCs and Discoverys, or fitting an overdrive while still having the rear PTO available on a Defender. It's the sort of thing I'd consider on my RR, given that it has an R380 and Borg Warner unit that is well geared for most use but undergeared for motorway cruising.

[Bowie69]

maybe the automatics too (I have never seen the innards, so don't know how much of the void is taken up by the torque converter).

All of it!

[elbekko]

The bellhousing is pretty much filled with the TC. But it does show that it can be done, as the TC is technically an underdrive. May need something similar to the flex plate to make the crank bush live though.