Power plants – Pressure fluid source and motor – Having distinct cooling or lubricating structure
Reexamination Certificate
2006-08-01
2006-08-01
Look, Edward K. (Department: 3745)
Power plants
Pressure fluid source and motor
Having distinct cooling or lubricating structure
C060S484000
Reexamination Certificate
active
07082759
ABSTRACT:
A hydraulic driving vehicle comprises front and rear transaxles incorporating respective hydraulic motors, and a pump unit separated from the front and rear transaxles. The pump unit incorporates a hydraulic pump having a pump shaft. A hydraulic circuit is formed by piping between the pump unit and the front and rear transaxles so as to circulate hydraulic fluid between the hydraulic pump and the hydraulic motors. A reservoir tank of the hydraulic fluid is connected to the hydraulic circuit by piping. A first cooling fan blowing air away from the pump unit and a second cooling fan blowing air toward the pump unit are disposed oppositely to each other with respect to the pump unit and drivingly connected to the pump shaft. At least a pipe for the piping of the hydraulic circuit and the reservoir tank passes an area blown by each of the first and second cooling fans.
REFERENCES:
patent: 3480099 (1969-11-01), Hunck et al.
patent: 4886142 (1989-12-01), Yamaoka et al.
patent: 5622051 (1997-04-01), Iida et al.
patent: 6390227 (2002-05-01), Abend et al.
patent: 6672843 (2004-01-01), Holder et al.
patent: 6732828 (2004-05-01), Abend et al.
patent: 6736605 (2004-05-01), Ohashi et al.
patent: 6772591 (2004-08-01), Ohashi et al.
patent: 6953327 (2005-10-01), Hauser et al.
Okada Hideaki
Tsukamoto Michio
LandOfFree
Hydraulic drive vehicle does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydraulic drive vehicle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic drive vehicle will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3624088