Patent ID: 11970257
Assignee: HAWE HYDRAULIK SE
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A hydraulic power trim lift device for a marine propulsion system, comprising:
at least one lift cylinder having a lift piston chamber and a lift rod chamber separated from the lift piston chamber by a lift cylinder piston;
at least one pump connected to the lift rod chamber via a first line arrangement and connected to the lift piston chamber via a second line arrangement; and
a tank;
wherein the lift piston chamber is connected to the tank via the second line arrangement when the first line arrangement is pressurized; and
the second line arrangement comprises a flow control device acting only in a direction of flow to the tank, the flow control device comprising a bypass line bypassing the flow control device in a direction of flow to the at least one lift cylinder.