WO1995021067A1 - Transverse engine with gear box for motor vehicles - Google Patents

Transverse engine with gear box for motor vehicles Download PDF

Info

Publication number
WO1995021067A1
WO1995021067A1 PCT/EP1994/000303 EP9400303W WO9521067A1 WO 1995021067 A1 WO1995021067 A1 WO 1995021067A1 EP 9400303 W EP9400303 W EP 9400303W WO 9521067 A1 WO9521067 A1 WO 9521067A1
Authority
WO
WIPO (PCT)
Prior art keywords
gear box
housing
clutch
drive unit
transmission
Prior art date
Application number
PCT/EP1994/000303
Other languages
French (fr)
Inventor
Grzegorz Janiszewski
Original Assignee
Ab Volvo
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to SE9203291A priority Critical patent/SE470514B/en
Priority claimed from SE9203291A external-priority patent/SE470514B/en
Application filed by Ab Volvo filed Critical Ab Volvo
Priority to PCT/EP1994/000303 priority patent/WO1995021067A1/en
Priority to AU60016/94A priority patent/AU6001694A/en
Publication of WO1995021067A1 publication Critical patent/WO1995021067A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
    • F16H3/093—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
    • B60K17/08—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
    • B60K5/04—Arrangement or mounting of internal-combustion or jet-propulsion units with the engine main axis, e.g. crankshaft axis, transversely to the longitudinal centre line of the vehicle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
    • F16H3/093—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts
    • F16H2003/0931—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts each countershaft having an output gear meshing with a single common gear on the output shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
    • F16H2200/0047—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising five forward speeds

Definitions

  • the present invention relates to drive unit for motor vehicles comprising an internal combustion engine designed to be mounted with its crank shaft transverse to the longitudinal direction of the vehicle, a clutch device joined to a crank shaft end and enclosed in a clutch housing on an end plane of the engine block, and a manual shift gear box driveably connected to the clutch device with a gear box housing which is joined to the clutch housing.
  • gear box housing is bolted directly to the clutch housing and the gear box is thus a direct extension of the engine block.
  • Conventional manual gear boxes have thus been able to be used for engines with up to four cylinders in a row without any problems arising with the lateral space in the engine compartment.
  • other solutions than in line cylinders have been chosen, primarily six cylinder V-engines.
  • extremely short gear boxes have been developed by using double countershafts, which has made it possible to have a five cylinder transversely mounted engine in an inter- mediate class automobile.
  • the gear box housing is arranged beside the engine block with its axial direction parallel to the axis of the crank shaft, that a distal end of a input shaft in the gear box housing points in the same direction as said crank shaft end, that a transmission connects an output shaft of the clutch device to said input shaft and that the gear box housing is carried in a housing over said transmission, which housing is joined to the clutch housing.
  • the design according to the invention is based on the idea of quite simply turning a known manual gear box 180° and placing it behind the engine block, which means that its length will not affect the length of the drive unit.
  • the extra transmission which is required between the clutch and the input shaft of the gear box, which can consist of a j-air of sockets and a chain therebetween, can be made very short in the axial direction.
  • a gear box with a basic design as disclosed in SE-A-454 073 can be used, i.e. with an integrated differential.
  • Such a gear box designed for direct mounting on a clutch housing need only be modified with respect to the mounting plane of the gear box housing, which must be adapted to the mounting plane of the housing over the chain transmission instead of to the mounting plane of the clutch housing.
  • Fig. 1 shows diagramatically a drive unit according to the invention and Fig. 2 shows an end view of the drive unit.
  • the numeral 1 designates an outer cylinder of a six cylinder straight engine and the numeral 2 designates a crank shaft, to the end flange 3 of which a fly ⁇ wheel 4 is securely bolted.
  • the flywheel 4 forms a portion of a conventional disc clutch with a driven disc 5, which is non-rotatably fixed to an output shaft 6, which at its outer end supports a sprocket 7.
  • a second sprocket 8 is non-rotatably fixed to the distal end of a shaft 9 which is the input shaft of a five speed manual gear box, generally designated 10.
  • Via a chain 11 the output shaft 6 drives the input shaft 9 of the gear box.
  • a gear transmission with three gears can be used.
  • the gear box has a first countershaft 12 and a second countershaft 13, each of which at its end proximate the input side non-rotatably carries a gear 14, 15, respectively, which engages the crown gear 16 of a differential 17.
  • the gear box can be of the type which is shown and described in the above- mentioned SE-A-454 073 and for a more detailed description of the torque transfer in the various gear speeds reference is made to this patent specification.
  • a clutch or flywheel housing 20 is bolted in a conventional manner by means of bolts (not shown) to an end plane 21 on the engine block 22.
  • the housing 20 is made in one piece with the housing 23 which encloses the chain transmission 7, 8 and 11.
  • the housings 20, 23 can be cast in one piece in an aluminum alloy.
  • the housing 24 of the gear box 10 has a mounting plane 25, which is bolted to a mounting plane 27 of the housing 23 by means of bolts 26.
  • the plane 27 lies coplanar with the clutch housing plane 28 bolted against the end plane 21 of the engine block 22, and this means that the mounting planes 27 and 28 can be machined in a single step.
  • the integrated housings 20, 23 form a single suspension device for the gear box 10 and no additional suspension device has proved necessary.
  • a single base design for a manual five speed gear box with integrated differential can be used both for an end-mounted gear box in a four or five cylinder engine and with a simple modification for a parallel mounted gear box of a six cylinder engine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Arrangement Of Transmissions (AREA)

Abstract

Drive unit for motor vehicles, comprising an internal combustion engine (22) with a clutch (4, 5) at one end plane (21) of the engine and a gear box (10) beside the engine. The gear box is oriented so that the distal end of its input shaft (9) points in the same direction as a shaft (6) joined to the clutch. Via an extra transmission (7, 8, 11), the clutch drives the input of the gear box. The gear box is suspended in a housing (20, 23) over said extra transmission.

Description

TRANSVERSE ENGINE WITH GEAR BOX FOR MOTOR VEHICLES
The present invention relates to drive unit for motor vehicles comprising an internal combustion engine designed to be mounted with its crank shaft transverse to the longitudinal direction of the vehicle, a clutch device joined to a crank shaft end and enclosed in a clutch housing on an end plane of the engine block, and a manual shift gear box driveably connected to the clutch device with a gear box housing which is joined to the clutch housing.
In known drive units of the type described above, the gear box housing is bolted directly to the clutch housing and the gear box is thus a direct extension of the engine block. Conventional manual gear boxes have thus been able to be used for engines with up to four cylinders in a row without any problems arising with the lateral space in the engine compartment. For engines with more than four cylinders, other solutions than in line cylinders have been chosen, primarily six cylinder V-engines. Lately, however, extremely short gear boxes have been developed by using double countershafts, which has made it possible to have a five cylinder transversely mounted engine in an inter- mediate class automobile. Straight engines with more than five cylinders and with cylin¬ der volumes of more than about two litres previously have not been able to be trans¬ versely mounted due to the fact that the complete drive unit, i.e. engine, clutch housing and gear box, would have been too long even if a known short gear box with double countershafts were used. The purpose of the present invention is to achieve a drive unit of the type described by way of introduction, which has a gear box arrangement, which makes it possible economically and practically to transversely mount a six cylinder straight engine in an intermediate class automobile.
This is achieved according to the invention by virtue of the fact that the gear box housing is arranged beside the engine block with its axial direction parallel to the axis of the crank shaft, that a distal end of a input shaft in the gear box housing points in the same direction as said crank shaft end, that a transmission connects an output shaft of the clutch device to said input shaft and that the gear box housing is carried in a housing over said transmission, which housing is joined to the clutch housing. The design according to the invention is based on the idea of quite simply turning a known manual gear box 180° and placing it behind the engine block, which means that its length will not affect the length of the drive unit. The extra transmission, which is required between the clutch and the input shaft of the gear box, which can consist of a j-air of sockets and a chain therebetween, can be made very short in the axial direction. A gear box with a basic design as disclosed in SE-A-454 073 can be used, i.e. with an integrated differential. Such a gear box designed for direct mounting on a clutch housing, need only be modified with respect to the mounting plane of the gear box housing, which must be adapted to the mounting plane of the housing over the chain transmission instead of to the mounting plane of the clutch housing.
The invention will be described in more detail below with reference to examples shown in the accompanying drawings, where Fig. 1 shows diagramatically a drive unit according to the invention and Fig. 2 shows an end view of the drive unit.
In Fig. 1, the numeral 1 designates an outer cylinder of a six cylinder straight engine and the numeral 2 designates a crank shaft, to the end flange 3 of which a fly¬ wheel 4 is securely bolted. The flywheel 4 forms a portion of a conventional disc clutch with a driven disc 5, which is non-rotatably fixed to an output shaft 6, which at its outer end supports a sprocket 7. A second sprocket 8 is non-rotatably fixed to the distal end of a shaft 9 which is the input shaft of a five speed manual gear box, generally designated 10. Via a chain 11, the output shaft 6 drives the input shaft 9 of the gear box. As an alternative to a chain transmission 7, 8 and 11, a gear transmission with three gears can be used. In addition to the input shaft 9, the gear box has a first countershaft 12 and a second countershaft 13, each of which at its end proximate the input side non-rotatably carries a gear 14, 15, respectively, which engages the crown gear 16 of a differential 17. The gear box can be of the type which is shown and described in the above- mentioned SE-A-454 073 and for a more detailed description of the torque transfer in the various gear speeds reference is made to this patent specification.
A clutch or flywheel housing 20 is bolted in a conventional manner by means of bolts (not shown) to an end plane 21 on the engine block 22. The housing 20 is made in one piece with the housing 23 which encloses the chain transmission 7, 8 and 11. For example, the housings 20, 23 can be cast in one piece in an aluminum alloy. The housing 24 of the gear box 10 has a mounting plane 25, which is bolted to a mounting plane 27 of the housing 23 by means of bolts 26. The plane 27 lies coplanar with the clutch housing plane 28 bolted against the end plane 21 of the engine block 22, and this means that the mounting planes 27 and 28 can be machined in a single step.
The integrated housings 20, 23 form a single suspension device for the gear box 10 and no additional suspension device has proved necessary.
By means of the design described above, a single base design for a manual five speed gear box with integrated differential can be used both for an end-mounted gear box in a four or five cylinder engine and with a simple modification for a parallel mounted gear box of a six cylinder engine.

Claims

1. Drive unit for motor vehicles comprising an internal combustion engine designed to be mounted with a crank shaft transverse to the longitudinal direction of the vehicle, a clutch device joined to a crank shaft end and enclosed in a clutch housing on an end plane of the engine block, and a manual shift gear box driveably connected to the clutch device with a gear box housing which is joined to the clutch housing, characterized in that the gear box housing (24) is arranged beside the engine block (22) with its axial direction parallel to the axis of the crank shaft, that a distal end of an input shaft (9) in the gear box housing points in the same direction as said crank shaft end (3), that a transmission (7,8,11) connects an output shaft (6) of the clutch device to said input shaft and that the gear box housing is carried in a housing (23) over said transmission, said housing (23) being joined to the clutch housing (20).
2. Drive unit according to claim 1, characterized in that the gear box has two countershafts (12,13), each of which has an individual output gear (14,15) which is mounted on the end of said associated countershaft which is proximate said transmission (7,8,11) and is in engagement with a crown gear (16) in a differential.
3. Drive unit according to claim 1 or 2, characterized in that the gear box housing (24) has an end plane (25) which is coplanar with the engine block (22) end plane (21) facing the clutch housing (20).
4. Drive unit according to one of claims 1-3, characterized in that the clutch housing (20) and the transmission housing (23) joined thereto service as the only supports for the gear box housing (24).
5. Drive unit according to one of claims 1-3, characterized in that the transmission (7,8,11) between the output shaft (6) of the clutch device and the input shaft (9) of the gear box is a chain transmission.
6. Drive unit according to one of claims 1-5, characterized in that the engine (22) has six cylinders in a row.
PCT/EP1994/000303 1992-11-04 1994-02-02 Transverse engine with gear box for motor vehicles WO1995021067A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9203291A SE470514B (en) 1992-11-04 1992-11-04 Cross-ways mounted engine with gearbox for motor vehicle
PCT/EP1994/000303 WO1995021067A1 (en) 1992-11-04 1994-02-02 Transverse engine with gear box for motor vehicles
AU60016/94A AU6001694A (en) 1992-11-04 1994-02-02 Transverse engine with gear box for motor vehicles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9203291A SE470514B (en) 1992-11-04 1992-11-04 Cross-ways mounted engine with gearbox for motor vehicle
PCT/EP1994/000303 WO1995021067A1 (en) 1992-11-04 1994-02-02 Transverse engine with gear box for motor vehicles

Publications (1)

Publication Number Publication Date
WO1995021067A1 true WO1995021067A1 (en) 1995-08-10

Family

ID=26070087

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1994/000303 WO1995021067A1 (en) 1992-11-04 1994-02-02 Transverse engine with gear box for motor vehicles

Country Status (1)

Country Link
WO (1) WO1995021067A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2848151A1 (en) * 2002-12-09 2004-06-11 Valeo Embrayages Motor vehicle transmission has clutch output shaft connected to gearbox main shaft by sealed chain

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0034814A1 (en) * 1980-02-23 1981-09-02 Interparte Aktiengesellschaft Motor vehicle gearings
EP0239553A1 (en) * 1986-03-17 1987-09-30 Ab Volvo Motor vehicle gear-box
EP0367960A2 (en) * 1988-11-10 1990-05-16 Dr.Ing.h.c. F. Porsche Aktiengesellschaft Multi-cylinder internal-combustion engine
DE4027901A1 (en) * 1989-09-04 1991-03-14 Mazda Motor ALL-WHEEL DRIVE MOTOR VEHICLE OF THE TYPE WITH CROSS-MOUNTED ENGINE
DE4119387A1 (en) * 1990-06-12 1992-01-09 Mazda Motor POWER TRANSFER FOR A MOTOR VEHICLE
EP0595684A1 (en) * 1992-10-30 1994-05-04 Regie Nationale Des Usines Renault S.A. Transverse drive train assembly with axial offset

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0034814A1 (en) * 1980-02-23 1981-09-02 Interparte Aktiengesellschaft Motor vehicle gearings
EP0239553A1 (en) * 1986-03-17 1987-09-30 Ab Volvo Motor vehicle gear-box
EP0367960A2 (en) * 1988-11-10 1990-05-16 Dr.Ing.h.c. F. Porsche Aktiengesellschaft Multi-cylinder internal-combustion engine
DE4027901A1 (en) * 1989-09-04 1991-03-14 Mazda Motor ALL-WHEEL DRIVE MOTOR VEHICLE OF THE TYPE WITH CROSS-MOUNTED ENGINE
DE4119387A1 (en) * 1990-06-12 1992-01-09 Mazda Motor POWER TRANSFER FOR A MOTOR VEHICLE
EP0595684A1 (en) * 1992-10-30 1994-05-04 Regie Nationale Des Usines Renault S.A. Transverse drive train assembly with axial offset

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2848151A1 (en) * 2002-12-09 2004-06-11 Valeo Embrayages Motor vehicle transmission has clutch output shaft connected to gearbox main shaft by sealed chain

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