Title:
プランジャポンプ
Document Type and Number:
Japanese Patent JP7323154
Kind Code:
B2
Abstract:
To provide a plunger pump capable of preventing adhesion of particles in a sample to an outer peripheral surface of a plunger in a cylinder of the plunger pump.SOLUTION: A plunger pump includes a cylinder provided with a cylindrical pressure chamber, and a cleaning flow channel communicated toward the inside of the pressure chamber from the external, a cylindrical plunger disposed in the pressure chamber of the cylinder in a manner that it can be reciprocated therein, and a cleaning member disposed on a part connected to the cleaning flow channel of an inner peripheral surface of the cylinder or an outer peripheral surface of the plunger, and kept into contact with the outer peripheral surface of the plunger, and the cleaning member slides on the outer peripheral surface of the plunger in accompany with inflow of a cleaning liquid to the cleaning flow channel.SELECTED DRAWING: Figure 6
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Inventors:
Keiichi Sano
Ryoichi Sasaki
Ryoichi Sasaki
Application Number:
JP2019087771A
Publication Date:
August 08, 2023
Filing Date:
May 07, 2019
Export Citation:
Assignee:
Tsunemitsu Co., Ltd.
International Classes:
F04B53/00
Domestic Patent References:
| JP2012233455A | ||||
| JP2000249076A | ||||
| JP2008101545A | ||||
| JP2017137780A | ||||
| JP58059979U |
Attorney, Agent or Firm:
Shirasaka Patent Attorney Corporation