Variable displacement gear pump
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 29, 2021
Grant Date -
May 7, 2020
app pub date -
Jan 2, 2020
filing date -
Aug 12, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A variable displacement gear pump comprises a fixed gear, a movable gear movable, a fixed gear ring fitted over the movable gear, a movable gear ring fitted over the fixed gear, a fixed cover having a hole in which the fixed gear ring rotates, a movable cover having a hole in which the movable gear ring rotates, a fixed gear block attached to the fixed cover, and a movable gear block attached to the movable cover. The fixed gear is engaged with the movable gear. The movable gear ring rotates in the hole of the movable cover, and the fixed gear ring rotates in the hole of the fixed cover. The movable gear, together with the movable cover, the movable gear, and the movable gear block, move along the direction of the shaft to change a width in which the fixed gear is engaged with the movable gear.
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