Controllable coolant pump for cooling circuit of internal combustion engine, has pressure piston to which pressure medium flow is enabled, and one-way valve that is constructed as flap non-return valve

摘要

The pump (1) has a cooling medium that is set to promote flow through a suction port (9) in a pressure-or spiral channel. The volumetric flow is influenced over impeller (8) at the outside which is enclosed by a guide plate (11). A push rod (12) in pump shaft (3) is set with a pressure piston (16) and guide plate is provided in communication with an actuator (17) which is infinitely adjusted between two end positions. The pressure medium flow in the direction of pressure piston is enabled and one-way valve (25) is constructed as a flap non-return valve.