发明名称 |
Piston-cylinder unit with device for determining position |
摘要 |
The present disclosure relates to a piston-cylinder unit with a device for determining position, the device comprising at least one exciter that is indirectly or directly electrically connected with the cylinder jacket and the cylinder piston of the piston-cylinder unit, and that excites the electrical oscillating circuit formed by the piston-cylinder unit and the contact lines to oscillate at its resonant frequency, it being possible to measure an electrical signal characterizing the resonant frequency on the piston-cylinder unit. The invention also relates to a construction machine or piece of hoisting equipment with such a piston-cylinder unit. |
申请公布号 |
US9027460(B2) |
申请公布日期 |
2015.05.12 |
申请号 |
US201213347935 |
申请日期 |
2012.01.11 |
申请人 |
Liebherr-Elektronik GmbH |
发明人 |
de Maglie Rodolphe;Engler Alfred;Cremer Ralf;Lavergne Hans-Peter |
分类号 |
F15B15/28 |
主分类号 |
F15B15/28 |
代理机构 |
Alleman Hall McCoy Russell & Tuttle LLP |
代理人 |
Alleman Hall McCoy Russell & Tuttle LLP |
主权项 |
1. A piston-cylinder unit with a device for determining position, the device comprising at least one exciter that is directly electrically connected with a cylinder jacket and a cylinder piston of the piston-cylinder unit, and that excites an electrical oscillating circuit formed by the piston-cylinder unit and contact lines to oscillate at its resonant frequency. |
地址 |
Lindau DE |