公开(公告)号：US4229147A

公开(公告)日：1980-10-21

申请号：US4232

申请日：1979-01-17

Applicant: Ernst Linder ,  Helmut Rembold ,  Walter Teegen ,  Achill Kessler ,  Roland Ehmann

Inventor： Ernst Linder ,  Helmut Rembold ,  Walter Teegen ,  Achill Kessler ,  Roland Ehmann

IPC: F04C18/344 ,  F01C21/08 ,  F04C18/352 ,  F04C28/06 ,  F04B49/00

CPC classification number: F04C28/06 ,  F01C21/0818

Abstract: A rotary positive-displacement pump in which the vane or vanes separating the chambers are locked in the inner dead center point after a certain outlet pressure has been attained, in order to shut off the pump. A corresponding locking apparatus has a detent which assures that each vane is locked in a form-locking manner in the position which shuts off the pumping action. Preferably, the locking apparatus has an overstroke step by means of which it is assured that each vane is constantly held at an increased distance from its sliding surface so that friction and impact noises are positively avoided.

Abstract translation: 一种旋转正排量泵，其中分离腔室的叶片或叶片在达到一定的出口压力之后被锁定在内死点中，以便关闭泵。 相应的锁定装置具有制动器，其确保每个叶片以形式锁定的方式被锁定在关闭泵送动作的位置。 优选地，锁定装置具有过冲程序，通过该步骤可以确保每个叶片恒定地保持与其滑动表面增加的距离，从而可靠地避免摩擦和冲击噪声。