Back to results
US 7,610,988 B2Granted
Hydraulic steering
AssigneeSauer-Danfoss ApS
InventorsBendt Porskrog, Kjeld Buus Jensen, Finn Visgaard Nielsen, Svend Erik Thomsen
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeSauer-Danfoss ApS
InventorsBendt Porskrog, Kjeld Buus Jensen, Finn Visgaard Nielsen, Svend Erik Thomsen
Estimating the term…
The invention concerns a hydraulic steering with a steering initiator, a steering unit with feedback properties, which can be activated by the steering initiator, the steering unit having a supply connection arrangement with a pressure connection (P) and a tank connection (T) and a working connection arrangement with two working connections (L, R), an auxiliary-force operated steering valve, which is located in parallel with the steering unit between the supply connection arrangement (P, T) and the working connection arrangement (L, R), and a feedback suppressing device, which is active, when the steering valve is active. It is endeavored to find a simple manner of ensuring the priority of the steering initiator over the steering valve. For this purpose, the steering initiator interacts with an activation sensor, which deactivates the feedback suppressing device on an activation of the steering initiator.
A hydraulic steering with a steering initiator, a steering unit with feedback properties, which can be activated by the steering initiator, the steering unit fluidly connecting a supply connection arrangement with a pressure connection and a tank connection to a working connection arrangement with two working connections, an auxiliary-force operated steering valve, which is located in parallel with the steering unit between the supply connection arrangement and the working connection arrangement, and a feedback suppressing device, which is active, when the steering valve is active, wherein the steering initiator receives feedback from the working connection arrangement only through the steering unit and interacts with an activation sensor, which deactivates the feedback suppressing device on an activation of the steering initiator.
A hydraulic steering comprising:
Dependencies are inferred from the claim text.