Pump e.g. coolant pump for motor vehicle, has heated wax expansion element or hydraulic actuator, which is provided to adjust valve directly or indirectly through scissor mechanism

摘要

The pump (1) has impeller (3) that is arranged on a pump shaft (2). An adjustable valve (4) is moved through impeller, such that delivery rate of pump is controlled. The heated wax expansion element (9) or hydraulic actuator (6) is provided to adjust the valve directly or indirectly through scissor mechanism (5).