Rotary pump for braking apparatus

Details Rotary pump for braking apparatus Rotary pump for braking apparatus

2005-06-14

2005-06-14

Trieu, Theresa (Department: 3748)

Rotary expansible chamber devices

Moving cylinder

Rotating

C418S075000, C418S079000, C418S102000, C418S132000

Reexamination Certificate

active

06905321

ABSTRACT:
In a rotary pump for a braking apparatus, a discharge trench is formed on an axial direction end surface of a second side plate that forms a mechanical seal. As a result, rotors are pressed back toward a side of a first side plate by a discharge pressure of brake fluid channeled to the discharge trench. Accordingly, a force pressing the rotors toward the second side plate is reduced and frictional resistance is reduced.

REFERENCES:
patent: 2968251 (1961-01-01), Eames, Jr. et al.
patent: 3188969 (1965-06-01), Brundage
patent: 3198127 (1965-08-01), Brundage
patent: 5466137 (1995-11-01), Bierlein et al.
patent: 63-131877 (1988-06-01), None
patent: A-2000-179466 (2000-06-01), None

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