Hydraulic pilot control unit with oscillation damping system

Details Hydraulic pilot control unit with oscillation damping system Hydraulic pilot control unit with oscillation damping system

2006-10-17

2008-10-21

Lee, Kevin (Department: 3753)

Fluid handling

Systems

With selective motion for plural valve actuator

C137S627500, C251S051000

Reexamination Certificate

active

07438089

ABSTRACT:
The present invention relates to the field of units for hydraulic pilot control of directional-control valves used in the fabrication of mobile vehicles and particularly relates to a hydraulic pilot control with an oscillation damping system. Connections are provided among the chambers in the pilot control unit to provide a damping effect in the actuation stroke, thereby preventing any oscillation: the provision of such connections among the chambers has the function of preventing air stagnation; this arrangement prevents any undamped behavior due to incomplete filling upon installation or to air transported in the hydraulic fluid.

REFERENCES:
patent: 5251660 (1993-10-01), Hori et al.
patent: 5566716 (1996-10-01), Togashi et al.
patent: 5682922 (1997-11-01), Galazin et al.
patent: 5787932 (1998-08-01), Pierce
patent: 0 716 235 (1996-06-01), None

Affiliated with

Also associated with

Rating

Hydraulic pilot control unit with oscillation damping system 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 pilot control unit with oscillation damping system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic pilot control unit with oscillation damping system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3999361