Electric water pump
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 24, 2015
Grant Date -
May 19, 2011
app pub date -
Jul 30, 2010
filing date -
Jul 30, 2010
priority date (Note) -
Withdrawn
status (Latency Note)
Importance
Abstract
An electric water pump apparatus may include a body having a stator chamber and a rotor chamber therein, a stator having a hollow cylindrical shape and being disposed in the stator chamber and generating a magnetic field, wherein the stator fluidly insulates the stator chamber and the rotor chamber, a rotor disposed in the rotor chamber and enclosed by the stator, wherein the rotor is rotated by the magnetic field, and a pump cover connected to the body and forming a volute chamber therein, wherein the volute chamber and the rotor chamber are fluidly-communicated through a connecting hole formed to the body and a coolant is supplied to the rotor chamber through the connection hole, wherein the stator includes a stator groove formed in an inner circumference therein and the stator groove is fluid-connected to the rotor chamber and the volute chamber through the connection hole.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2010 Application Filing Year
- F04B Class
- 757 Applications Filed
- 507 Patents Issued To-Date
- 66.98 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F04B Class
- 0 % this patent is cited more than
- 10 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 13, 2026 |