Pressure medium control for an injection timing device

A device is proposed for the control of a pressure medium pressure for a pressure medium-controlled injection timing device of an injection pump which without any recirculation predetermines the actuating pressure as a function of electrical control pulses of an electrical control device determining...

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Bibliographische Detailangaben
1. Verfasser:	NOLTE,ALBERT
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL CONTROLLING CONTROLLING COMBUSTION ENGINES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MECHANICAL ENGINEERING PHYSICS REGULATING SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS
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Beschreibung
Zusammenfassung:	A device is proposed for the control of a pressure medium pressure for a pressure medium-controlled injection timing device of an injection pump which without any recirculation predetermines the actuating pressure as a function of electrical control pulses of an electrical control device determining the rated value. The control pulses are converted by a stepping motor (3) into a rotary position of a rotary slide valve (4) corresponding to the electrical rated value of the pressure medium pressure. A sleeve (5), which is fixed to a diaphragm (6), slides axially on the rotary slide valve (4). A pressurised pressure medium enters the pressure chamber defined by the diaphragm (6) by way of a throttling port (13) and leaves this, controlled by a bevelled edge arranged on the end of the sleeve (5) projecting into the pressure chamber, by way of a discharge aperture (15) which reduces the pressure to the rated value. The rotary position of the rotary slide valve (4), by way of the bevelled edge (14) determines the height of the sleeve (5), which, by way of a spring force of a spring (7) directed counter to the compressive force, predetermines the control value of the pressure (Fig. 1).