公开(公告)号：US4193742A

公开(公告)日：1980-03-18

申请号：US883792

申请日：1978-03-06

Applicant: Klaus Fischer ,  Helmut Flauger ,  Kurt Balzer ,  Roland Fischer

Inventor： Klaus Fischer ,  Helmut Flauger ,  Kurt Balzer ,  Roland Fischer

IPC: F04B49/06 ,  F04C28/24

CPC classification number: F04C28/24

Abstract: A vacuum pump assembly is provided which includes a built-in pneumatic valve for closing the suction port of a vacuum pump of the assembly with an auxiliary valve being provided for controlling operation of the pneumatic valve. An electromagnetic valve is utilized as the auxiliary valve and a generator coupled with the shaft of the vacuum pump generates electric current in accordance with the operating stages of the pump in order to control the auxiliary valve.

Abstract translation: 提供一种真空泵组件，其包括用于关闭组件的真空泵的吸入口的内置气动阀，其具有用于控制气动阀的操作的辅助阀。 使用电磁阀作为辅助阀，并且与真空泵的轴耦合的发电机根据泵的操作级产生电流，以便控制辅助阀。