Powertrain for an automotive vehicle
First Claim
1. A structure of a powertrain disposed in an engine compartment of an automotive vehicle comprising:
- an engine placed within the engine compartment and having a crankshaft directed in a transverse direction of a vehicle body;
a transmission placed within the engine compartment, said transmission having an input shaft and an output shaft which are arranged coaxially with each other and directed parallel to said crankshaft;
a torque converter disposed adjacent to said engine, said torque converter being directly connected to said crankshaft;
power transfer means, disposed opposite to said engine with respect to said torque converter, for operationally transferring power from said torque converter to said input shaft of said transmission so as to transmit an output from said engine to said transmission; and
casing means, having first, second and third chambers, for accommodating said transmission, said torque converter and said power transfer means separately in said first, second and third chambers, respectively, said first and second chambers being connected by an oil passage through which said input shaft extends from said transmission to said power transfer means.
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Abstract
An automobile powertrain has at least an engine placed in an engine room and oriented so that its crankshaft is directed transversely, and a transmission placed in the engine room behind the engine. The transmission has input and output shafts arranged coaxially with each other and directed parallel to the crankshaft of the engine. An engine clutch is directly connected to the crankshaft, and a power transfer arrangement is disposed oppositely to the engine with respect to the engine clutch and operationally couples the engine clutch to the input shaft so as to transmit engine output to the transmission. The transmission, engine clutch and power transfer arrangement are independently accommodated in separate chambers of a single unit powertrain case. The transmission chamber and the power transfer chamber are connected to each other by an oil passage through which the input shaft extends from the transmission to the power transfer.
22 Citations
11 Claims
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1. A structure of a powertrain disposed in an engine compartment of an automotive vehicle comprising:
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an engine placed within the engine compartment and having a crankshaft directed in a transverse direction of a vehicle body; a transmission placed within the engine compartment, said transmission having an input shaft and an output shaft which are arranged coaxially with each other and directed parallel to said crankshaft; a torque converter disposed adjacent to said engine, said torque converter being directly connected to said crankshaft; power transfer means, disposed opposite to said engine with respect to said torque converter, for operationally transferring power from said torque converter to said input shaft of said transmission so as to transmit an output from said engine to said transmission; and casing means, having first, second and third chambers, for accommodating said transmission, said torque converter and said power transfer means separately in said first, second and third chambers, respectively, said first and second chambers being connected by an oil passage through which said input shaft extends from said transmission to said power transfer means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification