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Patent Searching and Data


Title:
PISTON PUMP DEVICE
Document Type and Number:
Japanese Patent JP2015117704
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a piston pump device of small request for a constitution space.SOLUTION: A piston pump device 1 includes a double piston 8, the double piston 8 has a work piston 8a and a pressure piston 8b, the work piston 8a and the pressure piston 8b are connected to each other through a piston rod 20, the work piston 8a is closely disposed in a first casing part 10, the pressure piston 8b is closely disposed in a second casing part 12, and the work piston 8a has a pocket-shaped folding-back portion 22 formed so that the second casing part 12 is at least partially surrounded by the work piston 8a.

Inventors:
KREUTZKAMPER JURGEN
SCHMITT FABIAN
SCHMITT HOLGER
Application Number:
JP2014253959A
Publication Date:
June 25, 2015
Filing Date:
December 16, 2014
Export Citation:
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Assignee:
SKF LUBRICATION SYSTEMS GERMANY
International Classes:
F04B23/02; F04B9/10; F16N7/16; F16N13/02; F16N19/00
Domestic Patent References:
JPS4736323B1
JP2009056852A2009-03-19
Foreign References:
US3070022A1962-12-25
Attorney, Agent or Firm:
Einzel Felix-Reinhard
Takuya Kuno