Gear ring pump including housing containing port support therein with the port support formed of a material having a greater heat expansion coefficient than a material of the housing
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 12, 2016
Grant Date -
Jun 5, 2014
app pub date -
Jun 27, 2012
filing date -
Jul 14, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A gear ring pump includes a pump bearing arranged in the housing cover. A port support is mounted in the pump housing between the impeller set and the end wall of the working chamber in a movable manner towards the driveshaft such that the port support is prevented from rotating. The port support has a suction kidney and a pressure kidney which pass through the port support separately from each other across the entire width of the port support. The thickness of the port support approximately matches the thickness of the impeller set but can also project past the thickness of the impeller set by up to 20%. The thermal expansion coefficient of the port support is approximately 70% to 120% greater than the thermal expansion coefficient of the pump housing. The driveshaft which is rotationally fixed to the inner rotor does not protrude into the port support.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully