Opposed swash plate type fluid pressure rotating machine
AssigneeKYB Corporation
InventorsHiroki Kato, Takeru Hosokawa
Life of this patent
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Abstract
An opposed swash plate type fluid pressure rotating machine in which a first piston and a second piston projecting from opposite ends of a cylinder block reciprocate in a cylinder, respectively following a first swash plate and a second swash plate includes a center spring for biasing the cylinder block toward the second swash plate. A housing hole (biasing force receiving part) for receiving a biasing force of the center spring is formed on one end part of the cylinder block. The tip of a second neck (reaction force receiving part) for receiving a reaction force from the second swash plate is formed on the other end part of the cylinder block. The cylinder block is biased only toward the second swash plate by the center spring.
Claims6
An opposed swash plate type fluid pressure rotating machine in which a first piston and a second piston projecting from opposite ends of a rotary cylinder block reciprocate in a cylinder, respectively following a first swash plate and a second swash plate, comprising:
- a center spring disposed only at one end part of the cylinder block so that another end part of the cylinder block is free of a center spring,
- wherein:
- a biasing force receiving part for receiving a biasing force of the center spring is formed on only the one end part of the cylinder block;
- a reaction force receiving part for receiving a reaction force from the first or second swash plate is formed on only the other end part of the cylinder block;
- and
- the cylinder block is biased only toward one of the first and second swash plate by the center spring, the cylinder block being configured to move axially.
An opposed swash plate type fluid pressure rotating machine, comprising:
- a rotary cylinder block configured to move axially, having
- a plurality of cylinders;
- a biasing force receiving part formed in only one end thereof, and
- a reaction force receiving part formed in only another end thereof;
- a first swash plate and a second swash plate, each of which is respectively tilted and facing opposite ends of the rotary cylinder block;
- a plurality of first pistons and a plurality of second pistons, each of the first pistons projecting from an end of the cylinder block, and each of the second pistons projecting from an opposite end of the cylinder block, each of said first pistons and each of said second pistons respectively following the first swash plate and the second swash plate, each of said cylinders having a respective one of said first pistons and a respective one of said second pistons therein;
- and
- at least one center spring disposed only at the one end of the rotary cylinder block so that the other end of the cylinder block is free of a center spring, the cylinder block being biased only towards one of the first and second swash plates by the at least one center spring, the biasing force receiving part for receiving a biasing force of the center spring, the reaction force receiving part for receiving a reaction force from the one of the first and second swash plates.
Dependencies are inferred from the claim text.