PUMP FOR ULTRALOW-TEMPERATURE LIQUID

Japanese Patent JP2017020365

A

PROBLEM TO BE SOLVED: To suppress a friction heat generated in a reciprocation-type pump at low cost and suppress generation of gas phase (gas).SOLUTION: A pump for ultralow-temperature liquid according to some embodiments of the present invention includes: a cylinder in which a compression chamber is formed; a piston that reciprocates inside the cylinder to thereby change a capacity of the compression chamber; a suction valve for intaking ultralow-temperature liquid into the compression chamber according to a movement of the piston; a discharge valve for discharging the compressed ultralow-temperature liquid from the compression chamber according to a movement of the piston; and at least a pair of cams that come into contact with a cam receiver provided at one end of a piston rod of the piston and apply a pressing force to the cam receiver in a direction of pressing the compression chamber, the pair of cams reversely rotating at a symmetric phase at all times with respect to a center face; and a driving part for the pair of cams. At least one of the cam receiver and the pair of cams is formed of magnetic material, and further includes a magnet for applying a magnetic force to the cam receiver in a direction of expanding the compressing chamber.SELECTED DRAWING: Figure 1

TAMADA NORIJI
HATTORI TOSHIRO
KUDO MIZUO

JP2015136246A

January 26, 2017

July 07, 2015

Click for automatic bibliography generation  

MAEKAWA SEISAKUSHO KK

F04B9/04; F04B15/08

JPH04502053A	1992-04-09
JP2000234590A	2000-08-29
JP2010216262A	2010-09-30
JP2015501901A	2015-01-19
JPS5037004A	1975-04-07

DE2746476A1

1979-04-19

Seishin ip patent business corporation

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