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U.S. Patent Specifications

U.S. Patent Specifications A transportable test stand for testing hydraulic appliances on aircraft which comprises a transportable frame, a reservoir for fluid under normal pressure mounted therein, three devices for supplying fluid under increased pressure to wit, a high pressure variable flow pump associated with a motor, a low volume pressure pump adapted to be operated manually, and a hydraulic accumulator adapted to supply fluid under progressively decreasing pressure, conduits to feed fluid from said reservoir to said two firstmentioned devices, means to feed fluid under pressure from said firstmentioned to said third mentioned device, a plurality of pressure outlets in one of the outside walls of said frame, each including a selfsealing coupling, a plurality of return outlets in one of the outside walls of said frame, each including a selfsealing coupling, a free return line extending between all said return outlets and said reservoir, another return line extending between the same outlets and the same reservoir but including a flow meter, means to direct the return flow of fluid alternatingly through the firstmentioned and the second mentioned return line, and means, operable from the outside, to connect any desired number of pressure outlets to any desired number of devices. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Aircraft Engineering and Aerospace Technology Emerald Publishing

U.S. Patent Specifications

Aircraft Engineering and Aerospace Technology , Volume 17 (9): 2 – Sep 1, 1945

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Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
0002-2667
DOI
10.1108/eb031291
Publisher site
See Article on Publisher Site

Abstract

A transportable test stand for testing hydraulic appliances on aircraft which comprises a transportable frame, a reservoir for fluid under normal pressure mounted therein, three devices for supplying fluid under increased pressure to wit, a high pressure variable flow pump associated with a motor, a low volume pressure pump adapted to be operated manually, and a hydraulic accumulator adapted to supply fluid under progressively decreasing pressure, conduits to feed fluid from said reservoir to said two firstmentioned devices, means to feed fluid under pressure from said firstmentioned to said third mentioned device, a plurality of pressure outlets in one of the outside walls of said frame, each including a selfsealing coupling, a plurality of return outlets in one of the outside walls of said frame, each including a selfsealing coupling, a free return line extending between all said return outlets and said reservoir, another return line extending between the same outlets and the same reservoir but including a flow meter, means to direct the return flow of fluid alternatingly through the firstmentioned and the second mentioned return line, and means, operable from the outside, to connect any desired number of pressure outlets to any desired number of devices.

Journal

Aircraft Engineering and Aerospace TechnologyEmerald Publishing

Published: Sep 1, 1945

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