DE2213462B2 - Device for regulating a fuel injection pump for externally ignited internal combustion engines - Google Patents

Description

ίηί ß ^etneb parameters such as temperature, ηΓ η T "^ sucked air, correctable is hT τ ^{a thennostat} depending on the ^{temperature of the} cooling water of the machine

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f ^whom the Regelungsbe- · ^maximaIe Maschincnbela- ^{half measuring (n} * of the space ^R! f ^lun 8 ^sberei ch the Do-

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ZeirL ^ J ^ "" Ssbeispiel the invention is shown in the drawing. It shows:

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Tor 3 existing pair, the oine magnetic coupling forms, is slidably mounted on the shaft 6 and is by a spring 11 against a control pin 4 pressed. The control pin 4 has two degrees of freedom. It moves partly in the direction of the Axis of the shaft 6 and the other part in a direction perpendicular to this axis. In the direction of the Axis of the shaft 6, the pin 4 moves depending on the geometric shape of the space

o kens 2, it is moved in the vertical direction by a rod 5, the movement of which is either from the opening of the throttle valve 28 (Fig. 4) of the engine or the negative pressure behind the throttle valve 28 in room 16, which is on the mem-

π ;. ρ <,. ^DarsteIlun g of a flap 28 depends in space 16, the brane the Memory control apparatus for an input i ₅ of a diaphragm box 17 acts. The rule pin 4 aemem distributor and _{ü ih ii} i Ed di V

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^{g Raumnoc} ken 2 _{stüm directly with its} end _zwe ith

Parts is ensured by a spring 12. The basic setting of the stator 36 and rotor 3 of the magnetic coupling and therefore of the space ⁿ ^ kens2 is ensured by a pin 10 and

^{is only supported by a support 9 or a} thermostat 8 depending on the temperature of the cooling

^{KNOWLEDGE IN THE ENGINE OR ? The La} S ^ed "^ ^magneti " ^{a5 support9 can also be} corrected ^{by further correction factors, in GeMuse X gela} " ^{such as the} atmospheric pressure and the temperature X ^§ H Λ f, ^{ntNeither the wave of the} air sucked in. With 15 are Ιηπί, η \ fT ' ^{leW denotes} the injection valves.

its ^P can (nSf da ^ estdTtf D ^anget i ^{plane waves In Fi} 8 · ^{2 is a} device for the controller

maenetkchen κ!, η ί ⁸ - ^ f torque of the 30 of a pump of the series type shown, the one

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either directly or with the help of a two-armed

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of the stator

1 sheet of drawings

Claims (3)

Speed a second the opening or angular position el- Patent claims: development of the throttle valve or the negative pressure in the SauTohrleitung form. Another possibility 1. Device for regulating a fuel - the turning of the throttle valve and the lower injection pump for externally ignited internal combustion pressure is in this case a measure of the speed of the machine depending on at least three of a space cam which moves depending on a first of these two parameters depending on a front space cam, and the result parameter and one with respect to the axis of a rer-de movement of the control member is through the r & um drive shaft of the space cam Radial Ver io lent design of the cam given. The upper slide of a surface of the room cam that scans the room cam is usually designed on a cylindrical cam surface approximately parallel to the axis of the drive shaft, and the regulating pin, which is guided depending on the movement, then comes in a second parameter to the axis of the room cam, where a the position of the cam is in the vertical direction.
This arrangement is advantageous where in the resulting manipulated variable from the two parameters <md direction of this movement the direct actuation of a third parameter takes place, whereby the metering of the pump takes place and it does not indicate that the Twisting is necessary to somehow transmit this movement.
Forehead space cam (2) by means of a magnetic stator (36), which is axially fixed to the axis of the space rotor (3), the stator (36) of the cam parallel to the axis of the viewing clutch is, this type of control un-space cam is firmly connected, and that the Ro- favorable, since here a certain number of transformer (3) on the drive shaft (6) depending on transmission links is necessary due to their play in the of the third parameter displaceable guided storage the accuracy of the scheme is reduced. as and the whole mechanism becomes complicated. 2. Device according spoke 1, characterized in a known device (German Auslekmarks, that the displacement of the space step 1 240 330) becomes parallel to the control pin cam (2) either by a support (9) whose to the axis of the drive shaft by a centrifugal force position shifted by operating parameters, such as temperature control, and the movement of the control pin The temperature and pressure of the sucked in air can be corrected via a lever is and / or transferred to the flow rate adjustment by a thermostat, Depending on the temperature of the cooling water, with a slot coupling in this lever the machine takes place. translation nor the dependency on the parameter 3. Apparatus according to claim 1 or 2, that "temperature" is entered. The precision characterized in that the control area 35 must be necessary here due to the type of transmission the dose for the maximum machine load. on the smallest radius of the space- In another known device (German nockens (2) is located and the control area (see Auslegeschrift 1 154 781) is also already the dose for idling on the largest a magnetic coupling for the rotation of the cam Radius of the space cam (2) is located. 40 kens used. The permanent magnet armature and The clutch, which concerns the squirrel cage, represents a separate component and the adjustment of the cam is carried out via gears. The cam surface is formed on the lateral surface of the cam body 45. The cam is set as a function of \ υη the engine speed is twisted and depending on The invention relates to a device for axially displacing the position of the throttle valve. There- to control a: r fuel injection pump for at, the air throughput of the engine is empirically in externally ignited internal combustion engines determined as a function of the speed and the 50 at least three operating parameters are based on the design of the cam surface. One Rotation of a forehead space cam depending on the influence of another controlled variable is not possible. a first parameter and one related to the seen. Axis of a drive shaft of the space cam radial The object of the application is to- Moving a room cam scanning, a device for regulating a combustion ct approximately parallel to the axis of the drive shaft sliding 55 to create the fuel injection pump at which the input guided control pen depending on one of the most varied parameters is possible and with second parameter, where one is the position of the control pin, any inaccuracy in the transmission of the tes decreasing actuator a resulting single variable is avoided. size from the two parameters and a third. This object is achieved according to the invention Passes parameters. 60 solved that the rotation of the forehead space cam In the case of injection pumps, which put the fuel in combustion by means of a magnetic coupling, with de- fcraftmaschinen in a short interval of the opening with respect to their rotor axially fixed stator the iation of the suction valve for each cylinder separately space cam is firmly connected, and that the rotor pose, must to maintain the correct mixing on the drive shaft depending on the third ♦ The 65 th parameter can be moved in the entire area of the working area. ^ machine the regulation of the dosage at least as an advantageous further development of this subject fine control as a function of two control variables results from the fact that -lic shifts the • s are carried out. The room cam can be a controlled variable either by a support whose