Power transfer device for four wheel drive
This patent describes a power transfer device for four-wheel drive in combination with a power transmission having a transmission casing secured at one side thereof to a cylinder block of an internal combustion engine, an input shaft rotatably mounted within the transmission casing and arranged coaxially with a crank-shaft of the engine, and an output shaft rotatably mounted within the transmission casing in parallel with the input shaft. A change-speed gearing is mounted on the input and output shafts, and an output gear is integral with the output shaft. The power transfer device comprises: a transfer casing detachably secured at one side thereof to the transmission casing; a first inner casing positioned within the transmission casing and rotatably supported by a pair of axially spaced bearings which are supported by the transmission casing; a second inner casing positioned within the transfer casing coaxially with the first inner casing and rotatably supported by a pair of axially spaced bearings which are supported by the transfer casing; an output gearing assembled within the transfer casing; a first ring gear mounted on the first inner casing for rotation therewith and in mesh with the output gear on the output shaft; and a second ring gear mounted on the second inner casing for rotation therewith and drivingly connected to the output gearing.
- Assignee:
- Toyota Jidosha Kabushiki Kaisha
- Patent Number(s):
- US 4643045
- OSTI ID:
- 6738696
- Country of Publication:
- United States
- Language:
- English
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