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Title:
LIQUID METERING PUMP AND APPARATUS FOR DETECTING VARIATION IN PRESSURE FOR SUCH PUMP
Document Type and Number:
Japanese Patent JP2016029282
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To achieve improvement related to pump operation so as to be able to collect data indicating the behavior of a pump in detail.SOLUTION: The invention relates to a liquid metering pump including an intake nozzle 2 having an intake valve 3 communicating with an action chamber 4, in which a piston 5 can move by alternate translational motion within the action chamber, an attraction force is generated as the intake valve is open when the piston moves apart from the nozzle, and a liquid is discharged as the intake valve is closed and the liquid flows through an outlet valve when the piston moves toward the nozzle. This pump includes a device D for detecting variation in pressure, the device provided between the intake valve 3 and the action chamber 4. This device D includes: a duct 10 which is connected at one end to the action chamber 4 and is provided at its other end with the intake valve 3; and means 11 capable of sensing a pressure in the duct, where the means 11 is mounted in the duct wall.SELECTED DRAWING: Figure 1

Inventors:
GREGORY LUCAS
DAVID VACHER
CHRISTOPHE CHARRIERE
Application Number:
JP2015201107A
Publication Date:
March 03, 2016
Filing Date:
October 09, 2015
Export Citation:
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Assignee:
DOSATRON INTERNATIONAL
International Classes:
F04B13/00
Domestic Patent References:
JPH05508700A1993-12-02
JP2006508295A2006-03-09
JP2001003874A2001-01-09
JP2000146642A2000-05-26
JPS5746845U1982-03-16
JP2007101563A2007-04-19
JPS50147777A1975-11-27
JP3119380U2006-02-23
JPH02213729A1990-08-24
Attorney, Agent or Firm:
Yuzo Sanada
Ohara Shizuo