SU1339278A1 - Internal combustion engine fuel pump adjuster - Google Patents

Abstract

Isoztepie. M. used in the device.x for the correction of fuel supply to the engine; with a turbocharger. Pel of the invention is the perception of construction. To do this, to the bottom of the diaphragm (D) 1 irikren-stop stop with a protrusion. A supporting sleeve 1 1 with collet 16 is attached to the upper part D of the barrel. In the cover 3, an external BMHTOBoii stop 10 is installed with a pinhole 13 and a bore 12 forming protrusions 14 and 15 for engagement with the collar and oHopnoii bushing: 1K ( ) nd. The size of the groove 12 determines the working stroke. The cavity between the gate 3 and the D 1 through the hole 13 in the adjusting shaft I) communicates with the injection-Hoii diesel system. 1 il. (L with so with N3 oo increase in feed fLQnLUUP

Description

The invention relates to engine building, in particular, to devices for correcting the feed of turbo-charged engines.

The aim of the invention is to simplify the design.

The drawing shows the proposed corrector.

The corrector contains a diaphragm 1 installed between the cornea 2 and the lip 3 and loaded with a spring 4, which is pre-tightened by the nut 5 through the control rod 6, the spring 7 for adjusting the fuel supply at the incidence frequency and the stop 8. Pre-tightening the spring 7 is performed by means of washers 9, with the spring preloading force 7 being greater than the spring preloading force 4. The adjusting stop 10 through the support sleeve 11 determines the position of the diaphragm 1 and the associated control flow B. In the adjusting stop 10 made a little 12 and a through hole 1.3. The groove 12 forms on the adjusting stop I) the supporting lugs 14 and 15. Interacting with the collet 16 of the supporting sleeve 11. The size of the groove 12 determines the working movement of the diaphragm 1.

The fuel pump corrector works as follows.

The cavity between the rat 3 and the diaphragm 1 through the opening 13 in the adjustment lug 10 is in communication with the diesel intake system. At lower pressurization pressures of the spring 4, due to the force of the secondary deformation created with the help of a ga 5 5. presses the support sleeve 1 1 diaphragm 1 we to the reference B1 1 spacing 14

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control stop 10 and through the stop 8 and the spring 7 keeps the control rod 6 in the restricted fuel supply position. When the boost pressure is increased, the diaphragm 1, overcoming the force of the spring 4, begins to move in the direction of increasing the fuel supply until the moment the sleeve 11 is rigidly connected to the diaphragm 1, making a working stroke, not with children on the protrusion 15 of the re-alignment stop 10, while 6 control takes the position corresponding to the nominal cyc-. yuva nodache. When the rotational speed of the crankshaft of a diesel engine drops below the nominal force exerted by the regulator on the control rod 6, the control rod 6 increases and, overcoming the force of the spring 7, the rod 6 controls the drive 1 in the direction of increasing the fuel supply.

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Claims (1)

Invention Formula The fuel pump corrector of an internal combustion engine, comprising a housing, a spring-loaded diaphragm mounted between them and a fuel feed control rod, is kinematically connected with a diaphragm, characterized in that, with a simplification design, the diaphragm is fitted with an attached its parts are an emphasis with a disk protrusion, between the diaphragm and the disk protrusion of the emphasis of the spring and spring, to the upper part of the diaphragm there is a fixed sleeve with a collar in its upper part, and an adjusting screw is installed in the upper part of the diaphragm Product stop c (j through hole and groove, forming protrusions. T, interacting with the collar of the support sleeve.