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EP0039936A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Four speed offset automatic overdrive transmission with lockup in direct and overdrive

Assignee: Ford-Werke GmbH
•
Filing: 1981-05-09
•
Granted: —
•
Expires: 2001-05-09
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Abstract

Abstract A transaxle driveline for a wheeled vehicle having an engine and gear system on a common axis that is transverse with respect to the center plane of the vehicle and having tandem driveshafts for the traction wheels, a differential gear mechanism mounted on a countershaft situated in prallel relationship with respect to the axis of the engine, the differential drive gearing being located between multiple ratio planetary gear elements (12) of the driveline and hydrokinetic torque converter (10) and a compact clutch-and-brake (CL,, CL 2 and CL 3 resp. B 1 and B 2 ) arrangement for various ratios to be shifted in the multiple ratio gear system within a transmission housing having a minimum axial dimension, the gearing being adapted to provide four forward driving ratios including an overdrive ratio and direct drive ratio, the latter having three operating modes, one of which is fully mechanical, one of which is hydrokinetic and the third of which is characterized by a split torque delivery path that is partly hydrokinetic and partly mechanical.

Inventors

  • 👤 Charles C. Bookout
  • 👤 Thomas R. Stockton

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-06 11:23
CPC Classifications
F; F16; F16H; F16H47/00; F16H47/06; F16H47/08; F16H47/085; F16H3/00; F16H3/44; F16H3/62; F16H3/66; F16H3/663; F16H2200/00; F16H2200/003; F16H2200/0043; F16H2200/20; F16H2200/2002; F16H2200/2005; F16H2200/202; F16H2200/2023; F16H2200/203; F16H2200/2043; F16H2200/2079; F16H2200/2082

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 228 words
In a transaxle transmission for a wheeled vehicle with the engine mounted transversely to the centerplane of the vehicle; a hydrokinetic torque transmitting unit (10) having an impeller (16) connected to said engine and a turbine (18) connected to a turbine sleeve shaft (64); multiple ratio gearing comprising two sun gears (30 and 32) of different diameter, a ring gear (34), a set of short pinions (38) engaging the smaller sun gear (30), a set of long pinions (36) engaging the larger sun gear (32) and said ring gear (34), said pinions engaging each other and a carrier (40) rotatably supporting said pinions; said hydrokinetic unit (10), said engine and said gearing (12) being mounted on a common axis; characterized in that said final drive gearing (14) located in a transverse plane between said hydrokinetic unit (10) and said multiple ratio gearing (12); a driven element (56) of said final drive gearing (14) being mounted for rotation about an axis spaced from and parallel to said common axis; first and second clutch means (42 and 50) for connecting said turbine shaft (64) to said larger sun gear (32) and said smaller sun gear (30), respectively; third clutch means (52) for connecting said impeller (16) to said carrier (40); and first and second brake means (46 and 48) anchoring said carrier (40) and said larger sun gear (32), respectively.
Claim 2
Dependent Claim 228 words
In a transaxle transmission for a wheeled vehicle with the engine mounted transversely to the centerplane of the vehicle; a hydrokinetic torque transmitting unit (10) having an impeller (16) connected to said engine and a turbine (18) connected to a turbine sleeve shaft (64); multiple ratio gearing comprising two sun gears (30 and 32) of different diameter, a ring gear (34), a set of short pinions (38) engaging the smaller sun gear (30), a set of long pinions (36) engaging the larger sun gear (32) and said ring gear (34), said pinions engaging each other and a carrier (40) rotatably supporting said pinions; said hydrokinetic unit (10), said engine and said gearing (12) being mounted on a common axis; characterized in that said final drive gearing (14) located in a transverse plane between said hydrokinetic unit (10) and said multiple ratio gearing (12); a driven element (56) of said final drive gearing (14) being mounted for rotation about an axis spaced from and parallel to said common axis; first and second clutch means (42 and 50) for connecting said turbine shaft (64) to said larger sun gear (32) and said smaller sun gear (30), respectively; third clutch means (52) for connecting said impeller (16) to said carrier (40); and first and second brake means (46 and 48) anchoring said carrier (40) and said larger sun gear (32), respectively.
Claim 3
Dependent Claim 62 words
The combination as set forth in Claim 1, characterized in that, said first and second clutch means (42 and 50) are located between said hydrokinetic unit (10) and said multiple ratio gearing (12) and said third clutch means (52) and said first brake means (46) are located on the side of said multiple ratio gearing (12) remote from said hydrokinetic unit (10).
Claim 4
Dependent Claim 48 words
The combination as set forth in Claim 1, characterized in that, said second brake means (48) and said first clutch means (50) are disposed radially outward of said second clutch means (42) and said first brake means (46) is located radially outward of said third clutch means (52).

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