High pressure unit fuel injector with timing chamber pressure co

Details High pressure unit fuel injector with timing chamber pressure co High pressure unit fuel injector with timing chamber pressure co

1991-07-12

1993-05-11

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Unitary injection nozzle and pump or accumulator plunger

Plunger interconnected or mounted valve

239 95, 2395338, F02M 4502

Patent

active

052094030

ABSTRACT:
A high pressure unit fuel injector includes a timing chamber formed between upper and lower plungers of the injector for controlling the timing of injection. A timing chamber relief valve is provided for performing at least one of the functions of (1) draining timing fluid from the timing chamber during an injection stroke responsive to pressure in the timing chamber for maximizing the pressure of fuel in the injection chamber under low speed operating conditions without exceeding a pressure capability of the injector under high speed operating conditions, and (2) for collapsing the timing chamber in a controlled manner at termination of injection so as to prevent secondary injection from occurring. The relief valve structure is wholly formed above the lower plunger, preferably within the upper plunger above the timing chamber. Thereby, assembly and maintenance operations on the valve are facilitated. Also, by providing the relief valve structure in an upper part of the plunger, the timing chamber assembly can be easily adapted for use on different types of injectors, including open and closed nozzle injectors.

REFERENCES:
patent: 4249499 (1981-02-01), Perr
patent: 4410137 (1983-10-01), Perr
patent: 4410138 (1983-10-01), Peters et al.
patent: 4419977 (1983-12-01), Hillebrand
patent: 4420116 (1983-12-01), Warlick
patent: 4463901 (1984-08-01), Perr et al.
patent: 4721247 (1988-01-01), Perr
patent: 4986472 (1991-01-01), Warlick et al.
patent: 5033442 (1991-07-01), Perr et al.
patent: 5076240 (1991-12-01), Perr

Affiliated with

Also associated with

Rating

High pressure unit fuel injector with timing chamber pressure co does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High pressure unit fuel injector with timing chamber pressure co, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High pressure unit fuel injector with timing chamber pressure co will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1345013