ELECTROMOTIVE COOLANT PUMP

摘要

An electrically motorized coolant pump includes a pump housing, a pump impeller being driven in a pump chamber, two suction-side intake ducts and a pressure-side outflow duct for the coolant. A control actuator that can be hydraulically actuated in response to a demand for coolant is disposed in a housing section of the pump housing between the suction side and the pressure side and the control actuator is coupled to a control element so as to open and close the intake ducts.

主权项

1. An electrically motorized coolant pump, comprising:
a suction side having two suction-side intake ducts and a pressure side having a pressure-side outflow duct for a coolant; a pump housing having a housing section and a pump chamber; a pump impeller being driven in said pump chamber; a control actuator disposed in said housing section between said suction side and said pressure side and hydraulically actuated in response to a demand for coolant; a control element coupled to said control actuator to open and close said intake ducts; said control actuator having at least one of a diaphragm disposed in said pump housing in a coolant-tight manner or a control piston, said membrane or control piston being connected or coupled to said control element; and said housing section having an actuator chamber connected to said pump chamber by a pressure opening for hydraulically actuating said control actuator.