Hydraulic transmission device

Expansible chamber devices – Rotating cylinder – Plural cylinders

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Details

92 122, 92 71, 92 47, 91499, 91507, 91485, 91484, 417269, F01B 1304, F01B 300, F01B, F01B

Patent

active

047716762

ABSTRACT:
A hydraulic transmission device operable to translate hydraulic energy into mechanical energy and vice versa. The device has a housing 14 having a close end portion and an open end portion in the longitudinal direction. The housing supports therein a drive shaft 11, a retainer 12, and a cylinder block 13 which have an integral structure. A recess is formed at a substantially central location of the end surface of the cylinder block 13 that is on the side of an open end of the housing, and a cover 15 closing the open end of the housing has a protruding portion 15A which extends through a port plate 23 to be engaged with the recess of the cylinder block through a bearing 17. A plurality of pistons are disposed in the cylinder block and are kept in tight engagement with a swash plate fixed to the closed end portion of the housing at a constant tilt angle. The device acts as either a swash plate type axial piston pump or motor of this type as the drive shaft rotates.

REFERENCES:
patent: 2168658 (1939-08-01), Thomas
patent: 3246575 (1966-04-01), Raymond
patent: 3604314 (1971-09-01), Steiner
patent: 3657970 (1972-04-01), Kobayashi
patent: 4602554 (1986-07-01), Wagenseil et al.

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