公开(公告)号：US3711221A

公开(公告)日：1973-01-16

申请号：US3711221D

申请日：1970-06-08

Applicant: SAAB SCANIA AB

Inventor： ALMQVIST B

IPC: B63H3/08

CPC classification number: B63H3/082 ,  B63H2003/088

Abstract: A device for varying the pitch of the propeller blades in an engine driven boat. A hydraulic motor having a work cylinder with a working piston imparts movements to the propeller blades and to an auxiliary cylinder through a mechanical transmission member. The auxiliary cylinder includes a follow-up slide which cooperates with the transmission member. The transmission member has inlet and outlet openings and a channel to conduct a pressure medium to and from the working cylinder. The follow-up slide has inlet and outlet openings which cooperate with the openings in the transmission member so that control of the position of the working piston is determined by the position of the follow-up slide.

Abstract translation: 用于改变发动机驱动船中的螺旋桨叶片的桨距的装置。 具有带有工作活塞的工作缸的液压马达通过机械传动构件向螺旋桨叶片和辅助气缸提供运动。 辅助气缸包括与传动构件配合的后跟滑块。 传输构件具有入口和出口以及用于将压力介质传导到工作缸和从工作缸传导的通道。 后续滑块具有与传动构件中的开口配合的入口和出口，从而通过后续滑块的位置来确定工作活塞位置的控制。