Rotary expansible chamber devices – With mechanical sealing
Patent
1997-07-02
1999-11-09
Vrablik, John J.
Rotary expansible chamber devices
With mechanical sealing
418216, 418219, 418270, 403338, 4033591, 464182, F04C 2356
Patent
active
059802251
ABSTRACT:
The pump (20) has a rotor (80) rotatable by a drive in a pump duct (25). The rotor (80) has a pump element (90) with undulating boundary faces extending radially. The boundary faces are bounded cylindrically and run in a fitted manner in a cylindrical conveying region (27), their highest points running adjacent to the end faces (35) of the pump duct in a sealed manner. In addition, a sealing slide (31) is provided, which is displaceable parallel to the axis of rotation (76) and which seals off the pump duct (25) between the inlet (22) and the outlet (23), so that during rotation the rotor (80) follows the undulating movement of the boundary faces (96) of the pump element (90). In addition, sealing means seal off the media-conveying pump chambers from the housing (21). The rotor (80) is detachably connected to the drive shaft (180) while forming connecting boundary faces, which are arranged on the drive side on the other side of the sealing means with respect to the media-conveying pump chambers.
REFERENCES:
patent: 1690728 (1928-11-01), Jaworowski
patent: 2083560 (1937-06-01), Grey et al.
patent: 2303031 (1942-11-01), Dusevoir
patent: 2990782 (1961-07-01), Phillips
patent: 3760605 (1973-09-01), Schroder
patent: 4838831 (1989-06-01), Rumberger
Sundstrand Fluid Handling Corporation
Vrablik John J.
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