Fluid rotary machine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 2, 1981
Grant Date -
N/A
app pub date -
Jun 21, 1978
filing date -
Jun 24, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
There is a fluid rotary machine having radial pistons and a shaft with an eccentric cam having a rotational movement relative to the housing. The cam mounts a ring on the exterior thereof and the pistons abut against the exterior surface of the ring with each piston mounted for sliding movement in the interior of the cylinder. The ring is associated with the distribution of the fluid of the machine to the pistons and cylinders. Means are provided to immobilize the ring against rotation relative to the housing and subjugate the ring to an essentially circular translation movement relative to the rotational movement of the eccentric cam on which the ring is mounted, and is characterized by the fact that the means for maintaining the ring in such a position comprises a plurality of elastic members connecting predetermined points of the ring to anchor points unassociated with the ring. These elastic members are sufficiently strong to oppose the tendency of the ring to rotate with the cam, but on the other hand, have sufficient elasticity to be adaptable to different eccentricities of the cam when the actual displacement of the machine is being changed.
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