Motors: expansible chamber type – Three or more cylinders arranged in parallel radial or... – Cylinders parallel to rotation axis
Patent
1982-08-30
1987-03-17
Croyle, Carlton R.
Motors: expansible chamber type
Three or more cylinders arranged in parallel radial or...
Cylinders parallel to rotation axis
92 122, F01B 1304
Patent
active
RE0323730
ABSTRACT:
A fluid device of the axial piston type having high and low pressure operating passages, one of which may be an inlet and the other an outlet depending upon the pumping or motoring function of the device. The fluid device which may be of the fixed or variable displacement type has a rotatable cylinder barrel with each end of a plurality of pistons disposed for reciprocation within cylinder bores in the cylinder barrel, and cylinder ports successively communicating each of the cylinder bores with arcuate inlet and outlet passages formed in a valving face disposed at one end of the cylinder barrel. The other ends of the pistons are drivingly engaged by an inclined thrust plate assembly disposed to impart a reciprocal stroking movement to the pistons within the cylinder bores as the cylinder barrel is rotated. In one example of the invention, the thrust plate assembly, the cylinder barrel and other rotating components of the fluid device are constructed of a sintered material enclosed in a plastic housing which is preloaded by a predetermined amount that is a function of the expansion forces exerted on the housing by the fluid pressure acting against the pistons within the cylinder bores. In a second example of the invention, a variable displacement fluid device is disclosed as having several means for varying the inclination of the thrust plate assembly with respect to the longitudinal axis of the shaft on which the rotating cylinder barrel is carried.
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Abex--Denison Series 700X829 Pump (1967) as described in the Deposition of Ellis Born (Exhibits 75-78) in Civil Action No. 972547 (E. D. Mich.) now Civil Action 79-60013.
Kelsey--Hayes Pump (1969) as described in the Deposition of Clarence Smith (Exhibits 91-101) in Civil Action No. 972547 (E. D. Mich.) now Civil Action 79-60013.
Croyle Carlton R.
Dana Corporation
Neils Paul F.
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