Pumps – Condition responsive control of pump drive motor – By control of electric or magnetic drive motor
Patent
1994-06-06
1996-07-09
Bertsch, Richard A.
Pumps
Condition responsive control of pump drive motor
By control of electric or magnetic drive motor
417 25, F04B 4906
Patent
active
055338666
ABSTRACT:
A pressurized air system controls air pressure in air reservoirs that deliver compressed air to air-actuated components in a vehicle. An air compressor supplies compressed air to air reservoirs which deliver compressed air to air-actuated components. A control system measures the air pressure in the air reservoirs by using at least one electric switch. Each switch is connected to an air reservoir and generates an electric signal to an electrically controlled valve indicative of the measured air pressure in the corresponding air reservoir. The electrically controlled valve is connected to an air compressor. The electrically controlled valve moves between a first position causing the air compressor to compress air and to supply compressed air to the air reservoirs and a second position causing the air compressor to stop compressing air, responsive to the received electronic signal.
REFERENCES:
patent: 2221857 (1940-11-01), Bartholomew
patent: 2244384 (1941-06-01), Bissinger
patent: 2345797 (1944-04-01), Corson
patent: 3043495 (1962-07-01), Hewitt
patent: 3888603 (1975-06-01), Nagase
"Service Data", SD-01-16, D-2 governor, Bendix, 4 pages (unnumbered), U.S.A. Jul. 1984.
Conventional service manual, Models FLA & FLD, "Air Brake Proportioning System", .sctn.12.02--General Description and Principles of Operation, Supplement 6, Bendix, pp. 050/1-050/3, Feb. 1989.
Conventional Service Manual, Models FLA & FLD, "Air Brake Proportioning System", .sctn.12.02--Specifications, Supplement 6, Bendix, p. 400/1, Feb. 1989.
Air-Lite Transport, Inc.
Bertsch Richard A.
Thai Xuan M.
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