Electrically controlled valve operating system, particularly for

Details Electrically controlled valve operating system, particularly for Electrically controlled valve operating system, particularly for

1981-10-15

1983-06-21

Lazarus, Ira S.

Internal-combustion engines

Charge forming device

With fuel pump

123446, F02D 116, F02M 3704

Patent

active

043889085

ABSTRACT:
To provide for extremely rapid operating conditions of the valve in an electrically controlled fuel injection system, that is, valve operation in the order of 10.sup.-5 seconds, for example, a pump (2, 62) provides pressurized fuel, and two, in push-pull operating valves (4, 64; 5, 65) are provided, in which one of the valves (4, 64) controls initiation of fuel injection, and the other one of the valves (5, 65) controls termination thereof; each one of the valves uses a spring-loaded valve element (18, 38", 38, 38'), operated by the pressure of the fuel to be injected, the valve elements being retained in a predetermined position by an electrically controlled operating unit (27, 47"; 47, 47') which has a positioning element operating in a positioning path having at least a component which is perpendicular to the operating direction of the valve element and which, as commanded by the control voltage applied thereto, clamps the valve element in a predetermined position, and thus prevents movement of the valve element even though fluid pressure is applied thereto. Preferably, the electrical control element is a stack of piezoelectric disks which, upon energizaton, expand in axial direction and press a clamping stem (26, 46"; 46, 46') the movable valve element (18, 38", 38, 38') in an operating bore of the valve unit or housing (16, 36).

REFERENCES:
patent: 1644769 (1927-10-01), Banner
patent: 2287702 (1942-06-01), Nichols
patent: 3851635 (1974-12-01), Murtin et al.

Affiliated with

Also associated with

Rating

Electrically controlled valve operating system, particularly for does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrically controlled valve operating system, particularly for, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrically controlled valve operating system, particularly for will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2106604