Motors: expansible chamber type – Three or more cylinders arranged in parallel radial or... – Radially disposed cylinders
Patent
1978-06-21
1981-06-02
Freeh, William L.
Motors: expansible chamber type
Three or more cylinders arranged in parallel radial or...
Radially disposed cylinders
417273, F01B 104
Patent
active
042704391
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.
REFERENCES:
patent: 2341196 (1944-02-01), Svenson
patent: 2345125 (1944-03-01), Huber
patent: 2553063 (1951-05-01), Simpson et al.
patent: 2952219 (1960-09-01), Woydt
patent: 2967490 (1961-01-01), Von Soden
patent: 3744380 (1973-07-01), Steiger
patent: 4018139 (1977-04-01), Landreau
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