Title:
The reciprocated type positive displacement pump which has a reversal-type electric motor
Document Type and Number:
Japanese Patent JP6124895
Kind Code:
B2
Abstract:
A pump system comprises an electric motor, a pump, a converter and a controller. The electric motor has a rotational output shaft that is rotatable in a first rotational direction and an opposite second rotational direction. The pump has a linearly displaceable input shaft that is movable in a first linear direction and an opposite second linear direction. The converter couples the output shaft to the input shaft such that rotation of the output shaft in the first rotational direction translates the input shaft in the first linear direction, and rotation of the output shaft in the second rotational direction translates the input shaft in the second linear direction. The controller repeatedly reverses rotation of the output shaft to produce reciprocating motion of the input shaft.
Inventors:
Romance, Timothy, S.
Murozek, Greg, Tee.
Murozek, Greg, Tee.
Application Number:
JP2014529947A
Publication Date:
May 10, 2017
Filing Date:
September 10, 2012
Export Citation:
Assignee:
Graco Minnesota Incorporated
International Classes:
F04B9/02; F04B9/00; F04B49/06; F04B49/12
Domestic Patent References:
| JP58045979U | ||||
| JP49105118A | ||||
| JP1104989A |
Foreign References:
| US4093404 |
Attorney, Agent or Firm:
Koji Nagato
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