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:
Sep. 13, 2016
Filed:
Nov. 30, 2012
Halla Visteon Climate Control Corp., Daejeon-si, KR;
Corinne Le Pellec, Pulheim, DE;
HANON SYSTEMS, Daejeon-Si, KR;
Abstract
A ball valve (), particularly for use in motor vehicle refrigerant circuits, having an actuator (), a shaft () including a shaft bearing (), a ball () including a ball passage (), and a valve housing (). A fluid shaft seal () is arranged in the shaft bearing () between an upper shaft seal () and a lower shaft seal (), wherein the fluid shaft seal () is formed by a cavity () in which a sealing fluid is provided, and that the sealing fluid is in contact with the shaft () in a sealing region () such that the sealing fluid has a sealing effect in the axial direction, wherein the cavity () is at least partially formed by a diaphragm () and is limited on the shaft () by the shaft seals (), and that the diaphragm () is formed in such a way that pressure can be applied to the side facing away from the sealing fluid.