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US 4,033,239 AGranted
Radial piston machine
AssigneeSulzer Brothers Limited
InventorWilhelm Gsching, deceased
Life of this patent
Estimating the term…
Abstract
The moving parts of the machine are mounted as a unit on the control journal. These parts include the cylinder block, pistons, piston guide ring, lateral support disks and drive shaft. The unit may be removed as such without having to remove the control journal from the housing. The diameters of the bearing surfaces for the lateral support disks and cylinder block are of successively reduced diameter from each other to facilitate the unit construction.
Claims2
A radial piston machine comprising
- a housing;
- a control journal having a cylindrical part of predetermined diameter fixedly mounted in said housing;
- a cylinder block rotatably mounted about an axis of rotation on a first cylindrical bearing surface of said control journal;
- a plurality of pistons circumferentially disposed in said cylinder block for radial displacement relative to said control journal, each said piston having a bearing shoe thereon;
- a piston-piloting ring mounted around said pistons and said cylinder block, said ring having a plurality of plane surfaces thereon, each said surface being disposed opposite to and in bearing relation with a respective piston bearing shoe, said ring having an axis of rotation offset from said axis of rotation of said cylinder block by a preset eccentricity;
- and
- a pair of rotatable support disks secured to said piston-piloting ring on opposite sides of said cylinder block, an inner one of said disks being rotatably mounted about a second cylindrical bearing surface of said control journal of a diameter greater than said first bearing surface of said cylinder block by at least twice said eccentricity and an outer one of said support disks being rotatably mounted about a third cylindrical bearing surface of said control journal, said third cylindrical bearing surface being of a diameter smaller than said first bearing surface of said cylinder block by at least twice said eccentricity.
4 more elements
Dependencies are inferred from the claim text.