Title:
SERIES DOUBLE SYRINGE TYPE LIQUID FEED PUMP AND LIQUID CHROMATOGRAPH
Document Type and Number:
Japanese Patent JP3903827
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To satisfy both liquid replacement and pulsating flow absorption.
SOLUTION: According to a set liquid feed flow rate, a stroke position deciding part 24 changes a stroke position of a plunger of a downstream syringe pump to a predetermined position held in a stroke position setting part 22. For liquid feed at a low flow rate with importance set on liquid replacement, the downstream plunger 4 is stroked on a top dead center side to feed liquid, and for liquid feed at a high flow rate without importance set on liquid replacement, the downstream plunger 4 is stroked on a bottom dead center side to feed liquid, so that a capacity to absorb a pulsating flow is increased.
Inventors:
Nao Kitagawa
Application Number:
JP2002099468A
Publication Date:
April 11, 2007
Filing Date:
April 02, 2002
Export Citation:
Assignee:
SHIMADZU CORPORATION
International Classes:
F04B13/00; G01N30/32; F04B23/06; F04B49/06; (IPC1-7): F04B13/00; F04B23/06; F04B49/06; G01N30/32
Domestic Patent References:
| JP63097881A | ||||
| JP63075375A | ||||
| JP7083400A |
Attorney, Agent or Firm:
Shigeo Noguchi