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:
Nov. 02, 2004
Filed:
May. 23, 2003
Jan Hinrichs, Friedrichsdorf, DE;
Luk Fuhrzeug-Hydraulik GmbH & Co., KG, Bad Homburg, DE;
Abstract
In an air-conditioning compressor with a revolving wobble plate driven by a driving shaft, the variable piston stroke height is regulated by directing pressure medium to flow from the high-pressure outlet compartment to the piston-drive compartment and/or from the piston-drive compartment to the intake suction compartment of the compressor. The driving shaft has a tubular end portion extending into a recess of the cylinder head. The medium flow from the high-pressure area to the piston-drive compartment is routed along the outside of the end portion, while the flow from the piston-drive compartment to the intake area is routed through the hollow channel inside the end portion. A flow-resisting element is arranged between the outside of the end portion and the wall of the recess in the cylinder head, so that the flow resistance towards the cylinder head is significantly greater than in the direction towards the driving compartment.