Axial piston motor or pump with an arrangement to thrust the med

Details Axial piston motor or pump with an arrangement to thrust the med Axial piston motor or pump with an arrangement to thrust the med

1984-12-05

1987-05-12

Croyle, Carlton R.

Motors: expansible chamber type

Three or more cylinders arranged in parallel radial or...

Control valve seating surface contact maintained by fluid...

91486, 91507, 92 57, F01B 1304

Patent

active

046640185

ABSTRACT:
In an axial piston motor or pump the cylinder barrel is mounted on a medial shaft which has a shoulder which axially, bears against the front end of the rotor barrel. The rear end of the medial shaft is radially borne in a housing portion. The front portion of the medial shaft is provided with a bearing member of an axial thrust bearing for support on a respective axial thrust bearing member in the housing. On the rear end of the rotary barrel an axially selfthrusting control body is provided to seal the flow of fluid to and from the cylinders of the rotary barrel. The control body presses against the rotary barrel, the rotary barrel presses against the shoulder of the medial shaft and the thrust bearing member of the shaft bears on the thrust bearing member of the housing. As a result thereof the cylinders in the rotary barrel can be straight through bores. The manufacturing of the rotor barrel is thereby simplified and the flow acceleration losses of former bag bore type cylinders are prevented.

REFERENCES:
patent: 2177008 (1939-10-01), Shader et al.
patent: 2858771 (1958-11-01), Cornelius
patent: 2870746 (1959-01-01), Keel
patent: 3149577 (1964-09-01), Gregor
patent: 3160110 (1964-12-01), Budzich
patent: 3181476 (1965-05-01), Matthews
patent: 3188972 (1965-06-01), Thoma
patent: 3253551 (1966-05-01), Thoma
patent: 3589244 (1971-06-01), Pruvot
patent: 3793924 (1974-02-01), Eickmann
patent: 4034650 (1977-07-01), Molly
patent: 4142450 (1979-03-01), Thoma

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