Title:
ROTARY PUMP
Document Type and Number:
WIPO Patent Application WO2002084122
Kind Code:
A3
Abstract:
This invention relates to expansible chamber positive displacement pumps, motors, and engines and includes variable displacement features. It provides a different method of making vane, piston, and roller abutment pumping devices which has benefits in sealing, porting dynamic and pressure balancing, and increased rotational speeds; resulting in better performance and higher efficiency.
Inventors:
RAYMOND CHARLES DOW (FJ)
Application Number:
PCT/US2002/008265
Publication Date:
December 19, 2002
Filing Date:
April 16, 2002
Export Citation:
Assignee:
RAYMOND CHARLES DOW (FJ)
International Classes:
F01C21/08; F04B1/04; F04C2/344; F04C13/00; F04C14/22; F04D29/42; F04D29/44; (IPC1-7): F04C2/344; F04B1/04; F04C13/00; F04C15/04
Domestic Patent References:
| WO2001012991A1 | 2001-02-22 | |||
| WO2000020760A1 | 2000-04-13 |
Foreign References:
| US2356916A | 1944-08-29 | |||
| US3283724A | 1966-11-08 | |||
| GB1132590A | 1968-11-06 | |||
| FR934326A | 1948-05-19 | |||
| US2631544A | 1953-03-17 | |||
| GB450669A | 1936-07-17 |
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