Title:
HYDRAULIC RECIPROCATING PUMP
Document Type and Number:
WIPO Patent Application WO/2007/041935
Kind Code:
A1
Abstract:
There is disclosed a hydraulic reciprocating pump which comprises a reciprocating pump,
two power cylinders, a reversing valve, a pump electric unit and a fuel tank with
hydraulic oil. The chamber is separated to a hydraulic chamber and a working chamber
by the piston in the reciprocating pump. The working chamber is connected into
the one-way valve. The liquid is poured fully into the non-piston chamber of the
power cylinder which is connected with the hydraulic chamber of the pump body
via the pipeline. A control mechanism of the reversing valve is disposed on the
power cylinder. The oil inlet of the reversing valve is connected with the pump
electric unit and fuel tank successively by the pipeline. Two oil outlets are
connected to the chamber with pistons of the power cylinder separately by the
pipeline. The backflow port is connected with the fuel tank by the pipeline.The hydraulic
reciprocating pump has simple structure, is easy to manufacture and is suitable
for many kinds of situations.
Inventors:
LV QUAN (CN)
WANG QUANZHANG (CN)
SHI JING (CN)
WANG QUANZHANG (CN)
SHI JING (CN)
Application Number:
PCT/CN2006/002502
Publication Date:
April 19, 2007
Filing Date:
September 25, 2006
Export Citation:
Assignee:
NANJING QUANZHANG HYDRAULIC PO (CN)
LV QUAN (CN)
WANG QUANZHANG (CN)
SHI JING (CN)
LV QUAN (CN)
WANG QUANZHANG (CN)
SHI JING (CN)
International Classes:
F04B9/08
Foreign References:
| CN1045836A | 1990-10-03 | |||
| CN1094564C | 2002-11-20 | |||
| CN2570495Y | 2003-09-03 | |||
| US6609898B1 | 2003-08-26 | |||
| US4913809A | 1990-04-03 |
Attorney, Agent or Firm:
NANJING ZHONGLIAN PATENT AGENT LTD. (No. 49 Zhongshan North Roa, Nanjing Jiangsu 8, CN)
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