Electronic control system for a variable displacement pump

Details Electronic control system for a variable displacement pump Electronic control system for a variable displacement pump

1985-09-20

1987-04-07

Croyle, Carlton R.

Pumps

Processes

417222, 60390, 60449, 60911, F04B 126, F16D 3102

Patent

active

046556893

ABSTRACT:
An electronic control system for a variable displacement pump comprises apparatus for sensing the actual position of the displacement determinative element and the actual rotational speed of the pump cylinder block, and for producing representative signals which are combined to produce a signal indicative of actual output flow rate. The displacement determinative elements position and the cylinder rotational speed are sensed directly by sensors mounted within the housing of the pump. The speed sensor is disposed in close proximity to, and aligned with marks inscribed on, the outer surface of the rotatable cylinder block. The volumetric efficiency of the pump is also sensed by and used to determine the actual flow rate.

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