Position-servo device for positioning a stop in a positive displ

Details Position-servo device for positioning a stop in a positive displ Position-servo device for positioning a stop in a positive displ

1990-04-23

1992-03-24

Bertsch, Richard A.

Pumps

Motor driven

Relatively movable pumping members driven by relatively...

417390, 92 131, 92 136, 91398, 91382, F04B 1700

Patent

active

050982605

ABSTRACT:
An electro-hydraulic position-servo device to quickly and accurately position a stop element is provided for use with a positive displacement fuel injection system, wherein a shuttle is used to positively displace pre-metered slugs of fuel to unit injectors. The stop device is operatively associated with a control shaft having at least one helical surface thereon; the stop element and control shaft slidably located within a housing. The housing permits communication between at least one pressurized fluid source and a drain line by way of a chamber within which the control shaft is located. Thus, by simply rotating the control shaft from rotational drive means, the control shaft will assume an axial position determined by the orientation of the helical surface with respect to the supply and drain lines. The device is adjustable by rotation of the shaft to a new position with the re-orientation of the helical surface.

REFERENCES:
patent: 2502989 (1950-04-01), Rathbun
patent: 4092964 (1978-06-01), Hofer et al.
patent: 4381750 (1983-05-01), Funada
patent: 4406263 (1963-09-01), Leblanc et al.
patent: 4407250 (1983-10-01), Eheim et al.
patent: 4478188 (1984-10-01), Eheim
patent: 4501246 (1985-02-01), Leblanc
patent: 4505244 (1985-03-01), Smith
patent: 4621605 (1986-11-01), Carey, Jr. et al.
patent: 4696271 (1987-09-01), LeBlanc

Affiliated with

Also associated with

Rating

Position-servo device for positioning a stop in a positive displ does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Position-servo device for positioning a stop in a positive displ, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Position-servo device for positioning a stop in a positive displ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2005571