Rotary expansible chamber devices – With mechanical sealing – Axially movable end wall or end wall portion
Patent
1981-08-11
1983-11-15
Smith, Leonard E.
Rotary expansible chamber devices
With mechanical sealing
Axially movable end wall or end wall portion
418212, F01C 1100, F01C 1908
Patent
active
044153198
ABSTRACT:
A plurality of pump sections are received in a stack in a body. Each of the pump sections include a cam ring disposed in surrounding relationship with a rotor having vanes thereon, and a pair of sideplates which closes the opposite sides of the cam ring. All of the pump sections are driven by a common drive shaft, thereby providing a compact pump unit having a reduced axial length. The outermost sideplates are subject to a discharge pressure from the respective pump sections to urge the various components of the individual pump sections to be held against the body. In this manner, the components are maintained at given accurate locations, eliminating the likelihood of a liquid leakage and simplifying the arrangement.
REFERENCES:
patent: 949638 (1910-02-01), Stormer
patent: 3076414 (1963-02-01), Adams
patent: 3311064 (1967-03-01), Eichele
patent: 3438570 (1969-04-01), Bode
Fujii Tadaaki
Masuda Naosuke
Ohe Takeshi
Jidosha Kiki Co. Ltd.
Obee Jane
Smith Leonard E.
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