Wheel motor cooling system with equally divided flow
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 26, 2017
Issued Date -
N/A
app pub date -
Aug 29, 2015
filing date -
Aug 29, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An electric wheel motor cooling system includes first and second electric wheel motors and gear reducers which use hydraulic fluid for cooling and lubrication. Each of the electric wheel motor housings includes a sump and a scavenge pump for return of hydraulic fluid to the hydraulic fluid reservoir. A remotely located hydraulic pump interconnected with the hydraulic fluid reservoir supplies and powers first and second locally located hydraulic motors which supply the electric motors and gears with an equal flow of lubricating and cooling oil. The first and second hydraulic motors, in turn, drive a common output shaft which, in turn, drives first and second scavenge pumps. The first and second scavenge pumps have a higher fluid flow rate than the hydraulic motors ensuring that oil is removed from the first and second electric wheel motor housings thus eliminating any churning losses of the motors or gears.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2015 Application Filing Year
- H02K Class
- 2569 Applications Filed
- 1988 Patents Issued To-Date
- 77.39 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 10 Citation Count
- H02K Class
- 16.06 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jun 26, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jun 26, 2029 |
