High pressure pump
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Oct 31, 2000
Grant Date -
N/A
app pub date -
Oct 13, 1998
filing date -
Feb 14, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention provides a high pressure pump (1), which comprises an electric motor (2) having a through-hole in axial direction on a rotation shaft (5), a thrust transmission shaft (8) engaged with threads of a rotation nut (6) operated by rotation of the motor, passing through the through-hole and performing linear reciprocal movement, plungers (9a, 9b) performing reciprocal movement in cylinders and connected to at least one end of the thrust transmission shaft (8), and a stress-strain sensor (16) provided on at least one of the plunger or the thrust transmission shaft.
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