Combined timing gear and pump for rotary mechanisms

Details Combined timing gear and pump for rotary mechanisms Combined timing gear and pump for rotary mechanisms

1976-01-07

1977-02-22

Vrablik, John J.

Rotary expansible chamber devices

Nutating working member

Working member common to plural working chambers

418 76, 418 88, 418 94, F01C 102, F01C 2104, F04C 2902

Patent

active

040089878

ABSTRACT:
A rotary mechanism including a housing defining an operating chamber, a shaft journalled in the housing and having an eccentric within the chamber, a rotor within the chamber and journalled on the eccentric, a timing gear carried by the housing and within the chamber and having a predetermined number of teeth, an internal ring gear carried by the rotor and meshed with the timing gear, the ring gear having a number of teeth greater than the predetermined number of the timing gear whereby a crescent-shaped gap between the gears exist. A crescent-shaped pad is carried by the eccentric within the gap and an inlet port is provided in the eccentric adjacent one corner of the pad for supplying hydraulic fluid to the gap. An outlet port is located in the eccentric adjacent the other corner of the pad for conveying pressurized hydraulic fluid to a point of use within the mechanism. The invention provides high pressure hydraulic fluid through unique use of the timing and ring gears necessary in such mechanisms.

REFERENCES:
patent: 3117527 (1964-01-01), Messmer
patent: 3234921 (1966-02-01), Laing et al.
patent: 3492974 (1970-02-01), Kreimeyer
patent: 3583371 (1971-06-01), King
patent: 3938477 (1976-02-01), Miller et al.

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