Construction machinery

Details Construction machinery Construction machinery

2006-12-05

2006-12-05

Restifo, Jeff (Department: 3618)

Motor vehicles

Power

Including traction motor of kind driven by noncompressible...

C060S431000, C060S417000

Reexamination Certificate

active

07143859

ABSTRACT:
Construction machinery which is capable of improving fuel efficiency of the engine and also capable of effectively utilizing surplus energy in a light-load mode. The construction machinery includes an engine, a hydraulic pump driven by the engine, and actuators driven by oil pressure supplied from the hydraulic pump. In the light-load mode where the engine torque at the intersection point of an iso-horsepower curve of the necessary horsepower and a governor characteristic curve of the engine is smaller than that of a rated output point of the engine, the number of revolutions of the engine is reduced while the engine torque is increased with respect to the intersection point, and the horsepower is made to exceed the iso-horsepower curve. With surplus torque generated therefrom, a power generator is operated so as to generate electric power, which is stored in a power accumulation apparatus.

REFERENCES:
patent: 5890470 (1999-04-01), Woon et al.
patent: 6666022 (2003-12-01), Yoshimatsu et al.
patent: 6820356 (2004-11-01), Naruse et al.
patent: 6851207 (2005-02-01), Yoshimatsu
patent: 2002/0125052 (2002-09-01), Naruse et al.
patent: 2003/0132729 (2003-07-01), Yoshimatsu
patent: 2004/0148817 (2004-08-01), Kagoshima et al.
patent: 2005/0001606 (2005-01-01), Kagoshima
patent: 2005/0036894 (2005-02-01), Oguri
patent: 60-30430 (1985-02-01), None
patent: 5-48501 (1993-06-01), None

Affiliated with

Also associated with

Rating

Construction machinery does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Construction machinery, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Construction machinery will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3720265