The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 11, 2005
Filed:
Jan. 06, 2003
Georg Weber, Offenbach, DE;
Michael Sickelmann, Stuttgart, DE;
Tilo Schäfer, Danbach, DE;
Christoph Walter, Stuttgart, DE;
Hans-joachim Krauss, Stuttgart, DE;
Harald Raiser, Balingen, DE;
Frank Obrist, Dornbirn, AT;
Georg Weber, Offenbach, DE;
Michael Sickelmann, Stuttgart, DE;
Tilo Schäfer, Danbach, DE;
Christoph Walter, Stuttgart, DE;
Hans-Joachim Krauss, Stuttgart, DE;
Harald Raiser, Balingen, DE;
Frank Obrist, Dornbirn, AT;
LuK Fahrzeug-Hydraulik GmbH & Co., KG, Bad Homburg, DE;
Behr GmbH & Co., Stuttgart, DE;
Abstract
A safety device limits the pressure in an axial-piston compressor with variable piston displacement. The compressor has as wobble plate or swash plate whose tilt angle can be variably controlled by the pressure differential between the high pressure in the discharge pressure zone and the pressure in the piston-drive chamber. The safety device consists of a valve arranged in a connector channel between the discharge pressure zone and the pressure zone of the piston-drive chamber. When the discharge pressure exceeds a given pressure limit, the safety device responds by allowing an increased flow of pressure medium from the discharge pressure zone to the piston-drive chamber. The influx of pressure medium into the piston-drive chamber causes a reduction of the tilt angle of the swash plate or wobble plate.