Power transmission for an automobile
AssigneesDaihatsu Motor Co., Ltd., Daikin Manufacturing Company, L.P.
InventorsHaruo Kinugasa, Koujirou Hase, Shigeru Takeshita, Masao Mizue
Life of this patent
Estimating the term…
Abstract
A power transmission for an automobile, which is provided with an oil circulation type fluid coupling and a clutch mechanism so that power may be transmitted from an output shaft of an engine to an input shaft of a gear transmission. The output and input shafts support an intermediate shaft to which a pump at the fluid coupling is rotatably supported, so that a partition for supporting the intermediate shaft is eliminated. At the fluid coupling are provided an oil-charge passageway for charging to the fluid coupling a part of lubricating oil for the engine and an oil-return passageway for collecting into an engine oil pan the oil flowing out of the fluid coupling.
Claims11
A power transmission for an automobile, which transmits power from an output shaft of an engine to an input shaft of a gear transmission, said power transmission comprising:
- a housing;
- a fluid coupling mounted within said housing and having a pump and a turbine, and a rear chamber at the rear surface side of said turbine;
- a clutch mechanism mounted within said housing and having a clutch wheel for selectively transmitting the power from said turbine to said input shaft;
- an intermediate shaft supported at both axial ends thereof rotatably by said output and input shafts, said output shaft being provided at its one axial end with a bearing bore for receiving one axial end of said intermediate shaft, said intermediate shaft being inserted and journaled at its said one axial end into said bearing bore, said intermediate shaft rotatably supporting said pump at said fluid coupling, non-rotatably supporting said turbine, and securing said clutch wheel of said clutch mechanism;
- a drive plate for transmitting the power from said output shaft to said pump at said fluid coupling, said drive plate being disposed at the rear surface said of said turbine at said fluid coupling and coupled with the outer peripheral portion of said pump;
- an oil-charge passageway for charging a part of the lubricating oil for said engine into said fluid coupling, said oil-charge passageway being disposed at said output shaft and communicating at its inlet side with a source of oil supply, said oil-charge passageway including an interconnecting passageway which communicates at its outlet side with said fluid coupling, said oil-charge passageway including an intermediate outlet portion opening into said bearing bore, said interconnecting passageway being open at its inlet side in said bearing bore;
- and,
- an oil-return passageway for returning oil flowing out of said fluid coupling into said engine, said oil-return passageway being disposed at said output shaft and communicating at the inlet side with said rear chamber of said turbine and at the outlet side with the interior of said engine.
A power transmission for an automobile, which transmits power from an output shaft of an engine to an input shaft of a gear transmission, said power transmission comprising:
- a housing;
- a fluid coupling mounted within said housing and having a pump and a turbine, and a rear chamber at the rear surface side of said turbine;
- a clutch mechanism mounted within said housing and having a clutch wheel for selectively transmitting the power from said turbine to said input shaft;
- an intermediate shaft supported at both axial ends thereof rotatably by said output and input shafts, said intermediate shaft rotatably supporting said pump at said fluid coupling, not-rotatably supporting said turbine, and securing said clutch wheel of said clutch mechanism;
- a drive plate for transmitting the power from said output shaft to said pump at said fluid coupling, said drive plate being disposed at the rear surface side of said turbine at said fluid coupling and coupled with the outer peripheral portion of said pump;
- an oil-charge passageway for charging a part of the lubricating oil for said engine into said fluid coupling, said oil-charge passageway being disposed at said output shaft and communicating at the inlet side with a source of oil supply and at the outlet side with the interior of said fluid coupling;
- and,
- an oil-return passageway for returning oil flowing out of said fluid coupling into said engine, said oil-return passageway being disposed at said output shaft and communicating at the inlet side with said rear chamber of said turbine and at the outlet side with the interior of said engine.
Dependencies are inferred from the claim text.