Series pump for use as compact air- or fluid pump in motor vehicle, has pistons with crank gears, where crank gears are connected to each other in torque locking manner by using spur gears

摘要

The series pump (100) has pistons (105,110,115) with crank gears (120,140,160), where the crank gears are connected to each other in a torque locking manner by using spur gears (125,145,165). The pistons stay in a phase angle to each other, where the phase angle is so selected that the pistons are actuated with an approximately constant torque.