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.

Date of Patent:
Aug. 07, 2018

Filed:

May. 21, 2014
Applicant:

Otto Egelhof Gmbh & Co. KG, Fellbach, DE;

Inventors:

Joan Aguilar, Fellbach, DE;

Rainer Maurer, Backnang, DE;

Markus Nagel, Remseck, DE;

Jean-Jacques Robin, Berglein, DE;

Kai Schauwecker, Fellbach, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 31/42 (2006.01); F16K 31/40 (2006.01); F25B 41/06 (2006.01); B60H 1/00 (2006.01); G05D 7/00 (2006.01);
U.S. Cl.
CPC ...
F16K 31/42 (2013.01); B60H 1/00485 (2013.01); F16K 31/408 (2013.01); F25B 41/062 (2013.01); G05D 7/005 (2013.01); F25B 2341/0671 (2013.01);
Abstract

Switching valve for controlling a mass flow in a cold or hot circuit. The valve includes a valve housing having a feed opening and a discharge opening; a valve piston which has a valve-closure member directed towards the discharge opening and which, in a closed position, abuts a valve seat of a through-bore between the feed opening and the discharge opening; a pilot valve having a pilot bore in the valve piston, which bore opens into the through-bore and traverses the valve piston; a path-generating device having an actuatable ram accommodating a closure member which closes the pilot bore and, with the closure member, can be moved into an opening position which opens the pilot bore; and a bypass duct formed between the feed opening and the pilot bore. At least one connection element forcibly transfers at least some of the stroke movement of the ram onto the valve piston.


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