logo

For the Inventor, By the Inventor

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.:

US 10233060 B1

PDFFull Text
Date of Patent:
Mar. 19, 2019

Filed:

Mar. 03, 2016

Switching valve, switching hydraulic system and crane

Applicant:

Xuzhou Heavy Machinery Co., Ltd., Xuzhou, CN;

Inventors:

Zenghai Shan, Xuzhou, CN;

Shouwei Wang, Xuzhou, CN;

Yinmei Ren, Xuzhou, CN;

Lei Zhao, Xuzhou, CN;

Houbao Qi, Xuzhou, CN;

Dong Wang, Xuzhou, CN;

Assignee:

XUZHOU Heavy Machinery Co., LTD., Xuzhou, CN;

Attorney:

Wilmer Cutler Pickering Hale and Dorr LLP

Primary Examiner:

Atif Chaudry

Int. Cl.
CPC ...
B66D 1/08 (2006.01); F16K 31/124 (2006.01); F16K 31/06 (2006.01); F16K 27/00 (2006.01); F15B 1/16 (2006.01); F15B 13/04 (2006.01); F15B 13/02 (2006.01); F15B 13/08 (2006.01); B66D 1/44 (2006.01); B66F 9/22 (2006.01);
U.S. Cl.
CPC ...
B66D 1/08 (2013.01); B66D 1/44 (2013.01); B66F 9/22 (2013.01); F15B 1/165 (2013.01); F15B 13/02 (2013.01); F15B 13/021 (2013.01); F15B 13/024 (2013.01); F15B 13/027 (2013.01); F15B 13/0402 (2013.01); F16K 27/003 (2013.01); F16K 31/0613 (2013.01); F16K 31/1245 (2013.01); F15B 13/0835 (2013.01); F15B 2211/20546 (2013.01); F15B 2211/30525 (2013.01); F15B 2211/329 (2013.01); F15B 2211/6355 (2013.01); Y10T 137/7761 (2015.04); Y10T 137/7762 (2015.04); Y10T 137/86027 (2015.04); Y10T 137/86614 (2015.04); Y10T 137/87169 (2015.04); Y10T 137/87177 (2015.04);
Abstract

The present application relates to a switching valve, a switching hydraulic system, and a crane, in which the switching valve having an oil inlet and an oil outlet comprises at least two pairs of valve oil ports, a pair of cartridge valves provided between each pair of valve oil ports, and the oil inlet and the oil outlet are controlled such that the oil inlet and the oil outlet are capable of shifting between communications with the at least two pairs of valve oil ports. The switching valve switches on and off communication between the oil inlet and the oil outlet and the at least two pairs of valve oil ports by controlling opening or closing of the cartridge valves.

Find Patent Forward Citations

Loading…