Rotary expansible chamber devices – With mechanical sealing – Axially movable end wall or end wall portion
Patent
1976-04-22
1977-12-06
Vrablik, John J.
Rotary expansible chamber devices
With mechanical sealing
Axially movable end wall or end wall portion
418153, F01C 1908, F01C 506, F04C 2700
Patent
active
040614468
ABSTRACT:
A rotary fluid pump or compressor having a pair of flexible diaphragm type sealing plates which are clamped on opposite ends of a stator housing by end heads to form a cylindrical pump cavity and to be pressed onto the opposite end faces of a rotor driven within the pump cavity so as to provide sealing between the suction, compression and delivery chambers. Each of the sealing plates comprises a flat flange portion clamped between the end faces of the stator housing and the end head and a substantially cone shaped portion extending radially inwardly from the flat flange portion to be pressed onto the end face of the rotor and substantially coinciding at its apex with the axis of the rotor.
REFERENCES:
patent: 1879136 (1932-09-01), Dubrovin
patent: 3096720 (1963-07-01), Younger
patent: 3121528 (1964-02-01), Rhodes
patent: 3334591 (1967-08-01), Dymond
patent: 3695791 (1972-10-01), Brundage
Maeda Toshiyuki
Saitou Tadashi
Sakai Toshimitsu
Sakamaki Hiroshi
Nippon Piston Ring Kabushiki Kaisha
Toyota Jidosha Kogyo Kabushiki Kaisha
Vrablik John J.
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