Hawe Hydraulik Se

Florian Mayr

Paul Franz

Jürgen Osterried

Peter Roider

Markus Weiss

Michael Stegmüller

A boat drive hydraulic steering unit has a steering cylinder unit, pump and tank. The cylinder unit has a first chamber, piston and second chamber. The pump is connected to the first and second chambers by respective first and second line. The first chamber is connected to the tank via the first line arrangement when the second chamber is pressurized, by the first line arrangement having a first check valve which opens when the second line arrangement is pressurized. The second chamber is connected to the tank via the second line arrangement when the first chamber is pressurized, by the second line arrangement having a second check valve which opens when the first line arrangement is pressurized. The first and second line arrangements have respective first and second throttling devices acting in the direction of flow towards the tank. A boat drive may include the steering unit.

Hydraulic steering unit for a boat drive and boat drive with such a steering unit

A hydraulic power trim lift device for a marine propulsion system has at least one lift cylinder, at least one pump and a tank. The lift cylinder has a lift piston chamber and a lift rod chamber separated from the lift piston chamber by a lift cylinder piston. The pump is connected to the lift rod chamber via a first line arrangement and to the lift piston chamber via a second line arrangement. The lift piston chamber is connected to the tank via the second line arrangement when the first line arrangement is pressurized. The second line arrangement has a flow control device acting in the direction of flow to the tank. Furthermore, a marine propulsion system with such a power trim lift device is provided.

Hydraulic power trim lift device for a marine propulsion system and marine propulsion system

A hydraulic component for vehicles, such as for maritime applications, is a hydraulic cylinder-piston unit. The piston of the hydraulic component has a piston rod with a measurement section. A magnetic rod in the piston rod extends over the measurement section. The magnetic rod has a helically varied magnetic field direction. The hydraulic component includes a sensor device having a scanning region measuring the field direction. The sensor device is arranged such that, over the entire stroke path of the piston, at least a part of the magnetic rod is located in the scanning region. The sensor device has a sensor unit configured to transmit measurement results for the field direction to a processing unit, configured to process and output the measurement results. Furthermore, the present invention relates to a hydraulic adjustment system having at least one hydraulic component and a vehicle having at least one hydraulic adjustment system.

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Munich, Georgia

Florian Mayr