Variable displacement pumps

F - Mech Eng,Light,Heat,Weapons – 15 – B

Patent

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Details

138/62, 137/84

F15B 11/02 (2006.01) F04B 1/32 (2006.01) F04B 49/10 (2006.01)

Patent

CA 2001780

ABSTRACT VARIABLE DISPLACEMENT PUMPS A rotary, variable-displacement hydraulic pump (1) in use driven by a prime mover (4), the pump (1) compris- ing control means (5) for varying the displacement of the pump and means (17) responsive to a signal related to the rotational speed of the pump and operable to override the control means so as, in use, to prevent stalling of the prime mover (4) within a predetermined operational range of the prime mover.

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