Title:
DRIVE FOR FIXED-QUANTITY PUMP OF PISTON FLOWMETER
Document Type and Number:
Japanese Patent JPS6264913
Kind Code:
A
Abstract:
In a driving device of the piston-flowmeter type, in particular for a proportioning pump, a distributor is mounted at one end of a piston cylinder for controlling the admission and discharge of fluid within two chambers formed respectively on each side of the piston. The distributor body is provided with circular flow passages and two pairs of valve-seats in cooperating relation with two seals of a two-position tubular valve. The valve has a central bore traversed by the piston rod and coupled to a resilient bistable mechanism for reversing the state of the valve and maintaining it in either of its two positions.
Inventors:
JIYAN KURUUPU
Application Number:
JP20692586A
Publication Date:
March 24, 1987
Filing Date:
September 04, 1986
Export Citation:
Assignee:
JIYAN KURUUPU
International Classes:
F01L23/00; F01L35/04; F03C1/00; F03C1/007; F04B13/00; F03C1/12; F03C1/28; F03C1/32; G01F3/16; G01F11/04; (IPC1-7): F03C1/00; F03C1/12; F04B13/00; G01F11/04
Attorney, Agent or Firm:
Aoki Akira
Previous Patent: Temperature and an oxygen concentration measuring device
Next Patent: PART MOUNTING DEVICE
Next Patent: PART MOUNTING DEVICE