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Title:
NOVEL CONSTANT-PRESSURE CONSTANT-SPEED PUMP
Document Type and Number:
WIPO Patent Application WO/2018/141235
Kind Code:
A1
Abstract:
The invention provides a novel constant-pressure constant-speed pump. The novel constant-pressure constant-speed pump comprises at least one set of pressurizing assemblies, a drive assembly connected with the pressurizing assemblies, and a liquid guiding assembly. The pressurizing assemblies and the drive assembly are connected with a rack (1). Each pressurizing assembly comprises a cylinder body (2), a plunger rod (3), a pressure cap (4) and a piston mechanism, wherein the plunger rod (3) is in a clearance fit with the corresponding cylinder body (2). The liquid guiding assembly comprises a first pneumatic valve (6), a second pneumatic valve (7), a first joint (8), a second joint (9), a third joint (10) and a fourth joint (11). The novel constant-pressure constant-speed pump has the beneficial effects that cylinder body can be mounted more conveniently and fast, the sealing performance of the pump is improved, and the safety condition of a pressure container under high-pressure liquid can be tested.

Inventors:
TAI, Liulong (Haian county Haian Town Hengkun Road No. 8, Nantong, Jiangsu 0, 226600, CN)
FEI, Xiaoli (Haian county Haian Town Hengkun Road No. 8, Nantong, Jiangsu 0, 226600, CN)
Application Number:
CN2018/074503
Publication Date:
August 09, 2018
Filing Date:
January 29, 2018
Export Citation:
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Assignee:
JIANGSU TOUCHUANG SCIENTIFIC RESEARCH INSTRUMENT CO., LTD. (ZHANG, hongmeiHaian county Haian Town Hengkun Road No., Nantong Jiangsu 0, 226600, CN)
International Classes:
F04B13/00
Foreign References:
CN106593803A2017-04-26
CN206539464U2017-10-03
CN201425008Y2010-03-17
CN204592152U2015-08-26
CN105927496A2016-09-07
DE4308467A11994-05-05
JP2008286123A2008-11-27
Attorney, Agent or Firm:
JIANGSU SHUCHENG LAW FIRM. (YANG, GuipingPukou Puzhu South Road No. 2 the Minfa City,Square 7 Building, Room 110, Nanjing Jiangsu 0, 211800, CN)
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