US3703107A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automotive transverse-mounted power units
Assignee: Automobiles Peugeot SA
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Filing: 1971-01-22
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Granted: 1972-11-21
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Expires: 1991-01-22
Abstract
Abstract A power unit mounted across the longitudinal axis of a motor vehicle comprises a torque converter casing, a main transmission mechanism and differential gear casing connected to the power unit along orthogonal assembling planes and centered to one another by means of a cylindrical fitting. A detachable casing section assembled on the one hand to the main casing of the transmission mechanism along an assembling plane perpendicular to the assembling plane of the power unit crankcase and on the other hand to the torque converter casing is provided.
Inventors
- 👤 Jean Piret
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:27
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/04; F16H57/048; F16H57/0482; F16H57/0483; F16H47/00; F16H47/06; F16H47/08; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2186
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
217 words
A power and transmission unit for a motor vehicle adapted for disposition in a direction transverse to the longitudinal axis of a motor vehicle, comprising: an engine crankcase; a change-speed transmission mechanism comprising epicyclic trains of gears and friction coupling members and at least one input shaft and one output shaft disposed coaxially to each other; a differential mechanism; a device for measuring the relative speed of a vehicle, said device connected to the output shaft of said change-speed mechanism; a hydrokinetic torque converter; a main casing enclosing a portion of said change-speed mechanism and said differential mechanism; a second casing enclosing said hydrokinetic torque converter, each of said casings comprising a detachable section connected to the engine crankcase along a joint plane; a third casing enclosing the friction coupling members of the change speed mechanism, said third casing comprising at least one detachable casing section connected to said main casing along a joint plane which is perpendicular to the major axis of the crankcase, and connected to said second casing and the joint plane between the second casing and the crankcase is perpendicular to the joint plane between the third casing and said crankcase, and said second and third casings are aligned with each other by means of cylindrical fitting surfaces on each of said casings.
Claim 2
Dependent Claim
217 words
A power and transmission unit for a motor vehicle adapted for disposition in a direction transverse to the longitudinal axis of a motor vehicle, comprising: an engine crankcase; a change-speed transmission mechanism comprising epicyclic trains of gears and friction coupling members and at least one input shaft and one output shaft disposed coaxially to each other; a differential mechanism; a device for measuring the relative speed of a vehicle, said device connected to the output shaft of said change-speed mechanism; a hydrokinetic torque converter; a main casing enclosing a portion of said change-speed mechanism and said differential mechanism; a second casing enclosing said hydrokinetic torque converter, each of said casings comprising a detachable section connected to the engine crankcase along a joint plane; a third casing enclosing the friction coupling members of the change speed mechanism, said third casing comprising at least one detachable casing section connected to said main casing along a joint plane which is perpendicular to the major axis of the crankcase, and connected to said second casing and the joint plane between the second casing and the crankcase is perpendicular to the joint plane between the third casing and said crankcase, and said second and third casings are aligned with each other by means of cylindrical fitting surfaces on each of said casings.
Claim 3
Dependent Claim
217 words
A power and transmission unit for a motor vehicle adapted for disposition in a direction transverse to the longitudinal axis of a motor vehicle, comprising: an engine crankcase; a change-speed transmission mechanism comprising epicyclic trains of gears and friction coupling members and at least one input shaft and one output shaft disposed coaxially to each other; a differential mechanism; a device for measuring the relative speed of a vehicle, said device connected to the output shaft of said change-speed mechanism; a hydrokinetic torque converter; a main casing enclosing a portion of said change-speed mechanism and said differential mechanism; a second casing enclosing said hydrokinetic torque converter, each of said casings comprising a detachable section connected to the engine crankcase along a joint plane; a third casing enclosing the friction coupling members of the change speed mechanism, said third casing comprising at least one detachable casing section connected to said main casing along a joint plane which is perpendicular to the major axis of the crankcase, and connected to said second casing and the joint plane between the second casing and the crankcase is perpendicular to the joint plane between the third casing and said crankcase, and said second and third casings are aligned with each other by means of cylindrical fitting surfaces on each of said casings.
Claim 4
Dependent Claim
217 words
A power and transmission unit for a motor vehicle adapted for disposition in a direction transverse to the longitudinal axis of a motor vehicle, comprising: an engine crankcase; a change-speed transmission mechanism comprising epicyclic trains of gears and friction coupling members and at least one input shaft and one output shaft disposed coaxially to each other; a differential mechanism; a device for measuring the relative speed of a vehicle, said device connected to the output shaft of said change-speed mechanism; a hydrokinetic torque converter; a main casing enclosing a portion of said change-speed mechanism and said differential mechanism; a second casing enclosing said hydrokinetic torque converter, each of said casings comprising a detachable section connected to the engine crankcase along a joint plane; a third casing enclosing the friction coupling members of the change speed mechanism, said third casing comprising at least one detachable casing section connected to said main casing along a joint plane which is perpendicular to the major axis of the crankcase, and connected to said second casing and the joint plane between the second casing and the crankcase is perpendicular to the joint plane between the third casing and said crankcase, and said second and third casings are aligned with each other by means of cylindrical fitting surfaces on each of said casings.
Claim 5
Dependent Claim
155 words
Enclosures for the power and transmission units of a motor vehicle, comprising: a. an engine crankcase; b. a main casing for enclosing a portion of a change-speed transmission mechanism, and for enclosing a differential mechanism; c. a second casing for enclosing a hydrokinetic torque converter, each of said casings comprising a detachable section connected to said crankcase along a joint plane; d. a third casing for enclosing a further portion of a change-speed mechanism, said third casing comprising at least one detachable casing section connected to said main casing along a joint plane whIch is perpendicular to the major axis of the crankcase, and connected to said second casing; and the joint plant between the second casing and the crankcase is perpendicular to the joint plane between the third casing and said crankcase; and said second and third casings are aligned with each other by means of cylindrical fitting surfaces on each of said casings.
Claim 6
Dependent Claim
155 words
Enclosures for the power and transmission units of a motor vehicle, comprising: a. an engine crankcase; b. a main casing for enclosing a portion of a change-speed transmission mechanism, and for enclosing a differential mechanism; c. a second casing for enclosing a hydrokinetic torque converter, each of said casings comprising a detachable section connected to said crankcase along a joint plane; d. a third casing for enclosing a further portion of a change-speed mechanism, said third casing comprising at least one detachable casing section connected to said main casing along a joint plane whIch is perpendicular to the major axis of the crankcase, and connected to said second casing; and the joint plant between the second casing and the crankcase is perpendicular to the joint plane between the third casing and said crankcase; and said second and third casings are aligned with each other by means of cylindrical fitting surfaces on each of said casings.
Claim 7
Dependent Claim
50 words
Power and transmission unit according to claim 1, characterized in that the speed measuring device comprises a tachometric alternator having its stator rigid with the third casing enclosing the epicyclic trains of gears and its rotor coupled to the free end of the output shaft of said change-speed transmission mechanism.
Claim 8
Dependent Claim
57 words
Power and transmission unit according to claim 1, characterized in that the input shaft of said change-speed transmission mechanism is driven from said torque converter through a shaft carrying two pinions meshing the one with the member driving said torque converter and the other with a pinion rigid with the input shaft of the change-speed transmission mechanism.
Claim 9
Dependent Claim
27 words
Power and transmission unit according to claim 4, characterized in that said input shaft and output shaft of the change-speed transmission mechanism are carried by plain bearings.
Claim 10
Dependent Claim
39 words
Power and transmission unit according to claim 1, characterized in that the main casing of said change-speed mechanism comprises a cover forming with an internal partition cast integrally with said casing a cavity constituting the engine lubricating oil sump.
Claim 11
Dependent Claim
40 words
Power and transmission unit claim 1, characterized in that the main casing enclosing the differential is provided with a cover of which the joint plane is perpendicular to the joint plane of the engine crankcase with the change-speed main casing.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-11-21 | 1976-05-22 | 1976-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-21 | 1980-05-22 | 1980-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-21 | 1984-05-22 | 1984-11-21 | $7700.00 | Window Closed / Lapsed |