KRAFTSTOFFEINSPRITZPUMPE FUER BRENNKRAFTMASCHINEN

• Main Authors: WUETHERICH, PAUL, 7141 SCHWIEBERDINGEN, DE, GOLL, WOLFGANG, 7129 ILSFELD, DE, SCHARF, MICHAEL., 3300 BRAUNSCHWEIG, DE, SIMON, HELMUT, 7320 GOEPPINGEN, DE, KHOSRAWI, MOHAMMAD-ALI.. DR., 7140 LUDWIGSBURG, DE, REISSER, BERNI., 7311 NOTZINGEN, DE, FORTENBACHER, THOMAS-WIRT.. , 7016 GERLINGEN, DE, KONRATH, KARL, 7149 FREIBERG, DE, PFLUG, HANNES-MIN. DR., 7252 WEILDERSTADT, DE, TAUDT, CHRISTIAN., 7057 WINNENDEN, DE
• Format: Patent
• Language: German
• Published: 03.12.1992
• Subjects: BLASTING; COMBUSTION ENGINES; CONTROLLING COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; WEAPONS

The invention is based on a fuel injection pump in which to supply a very rapid pressure rise in the interior of a fuel injection pump, a pressure valve controlling this pressure is modified such that upon cold starting of the engine, the pressure valve closes a bypass line at the feed pump and thus delivers all the fuel to the fuel injection pump. The closure is effected as a function of rpm and accordingly pressure, and also as a function of the engine operating temperature; in the fuel injection pump according to the invention, the rpm- and pressure-dependent diversion is performed by the adjusting piston of an injection adjuster. Thus, compared with the known cold-starting accelerating devices, one additional pressure limiting valve can be eliminated.