F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
121/76
F15B 15/10 (2006.01) B60T 13/569 (2006.01)
Patent
CA 1194372
ABSTRACT A fluid motor (10) having a housing (12) with first (14), second (16) and third (18) chambers therein. A first partition (22) separates the first chamber (14) from the second chamber (16). A second partition (24) separates the second chamber (16) from the third chamber (18). The third chamber (18) is connected to a source of fluid under pressure. A valve mechanism (91) controls the communication of the source of fluid between the second )16) and third (18) chambers. A poppet valve (42) allows the first fluid to flow into the first chamber (14) from the second chamber (16). The first chamber (14) is connected to the third chamber (18) through a check valve (18). The valve mechanism (91) responds to an operator input signal by terminating fluid communication between the second (16) and third (18) chambers and initiating communication of the second chamber (16) with air to create a pressure differential across the first (22) and second (24) partition (22) stationary but acts on the second partition (24) to develop an output force correspond- ing to the input signal. Should the source of fluid be interrupted, the stored fluid in chamber (14) flows into chamber (18) to assure for the development of the operational pressure differential.
417702
Allied Corporation
Macrae & Co.
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