Regenerative brake system and hydraulic pump/motor for use...

Details Regenerative brake system and hydraulic pump/motor for use... Regenerative brake system and hydraulic pump/motor for use...

2007-01-24

2010-11-09

Schwartz, Christopher P (Department: 3657)

Fluid-pressure and analogous brake systems

Speed-controlled

Regenerative brakes

C303S010000, C303S116400

Reexamination Certificate

active

07828395

ABSTRACT:
A regenerative brake system and a variable displacement pump/motor for use therein. Each cylinder of the pump/motor having a main piston and a second piston between which is defined a space for hydraulic fluid, and a resilient element acting on the second piston to bias it toward the main piston. Variable displacement is achieved by controlling a volume of pressurized fluid that is injected and exhausted between the main and second pistons. Brake, drive and neutral modes of operation of the pump/motor are achieved by controlling the timing (relative to a drive shaft phase) of the injection and exhaust of the fluid. Regeneration is achieved by storing pressurized fluid generated by the pump/motor in an accumulator in brake mode and using the stored pressurized fluid to power the pump/motor in drive mode.

REFERENCES:
patent: 3417702 (1968-12-01), Behm
patent: 4781104 (1988-11-01), Kita
patent: 5383718 (1995-01-01), Burgdorf et al.
patent: 5496099 (1996-03-01), Resch
patent: 5558413 (1996-09-01), Resch
patent: 2008/0084108 (2008-04-01), Crimpita
patent: 2008/0100129 (2008-05-01), Lubbers
patent: 2010/0044129 (2010-02-01), Kyle
patent: 2005/079461 (2005-09-01), None
patent: 2006/091541 (2006-08-01), None

Affiliated with

Also associated with

Rating

Regenerative brake system and hydraulic pump/motor for use... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Regenerative brake system and hydraulic pump/motor for use..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Regenerative brake system and hydraulic pump/motor for use... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4246698