ADJUSTER OF DIESEL FUEL FEEDING OF GAS DIESEL Russian patent published in 2009 - IPC F02B43/00 F02D41/00 

FIELD: agriculture.

SUBSTANCE: invention relates to vehicles, gas diesel tractor particularly to gas diesel systems (as part of gas diesel system) and can be used for agricultural and other tractors for improvement of performance parametres of particular tractors while operation of it in gas diesel mode, allowing gas diesel system with fixed fuse dose of diesel fuel. Adjuster of diesel fuel feeding of gas diesel contains fuel feed pump, high-pressure fuel pump (HPFP). On generator it is installed rotational velocity sensor, which is by means of circuit is connected to tractor case. On tractor case there are sequentially installed: pulse-repetition frequency converter into voltage, connected by circuit with rotational velocity sensor, differential amplifier; resistor, driving absolute value of fuse dose in rpm range of gas diesel crankshaft 1400-2100 rpm, power module, pulse-length modulator, power amplifier, voltage impulses generator. Transformer is connected by circuits with differential amplifier. Differential amplifier is connected by circuits to resistor, assigning absolute value of fuse dose in rpm range of gas diesel crankshaft 1400-2100 rpm and pulse-length modulator correspondingly; pulse-length modulator is affixed by circuits to voltage impulses generator, and power amplifier correspondingly, power module is affixed by feed circuits to frequency shifter of pulse-repetition frequency converter into voltage, differential amplifier, pulse-length modulator, voltage impulse generator, power amplifier, and enumerated structural forms electronic module; switch affixed by circuits to terminal "+12 B" electrical equipment panel of tractor and to power module of electronic module, high-pressure fuel pump, on which there are sequentially installed: limiter case, coil, constant magnet, support, spring. Constant magnet is rigidly connected to support, effecting the lath and able to move inside the coil in horizontal coordinate in the range of switching on run of fuse dose and adjustment of lath position, and extreme positions of specified movement corresponds to lath position of absolute value of fuse dose in rpm range of crankshaft of gas diesel 1400-2100 rpm and full speed of lath while operating in diesel mode. Spring provides balancing effort to electromagnetic force and return of constant magnet and support into position of absence position of lath run limitation at failure of current in coil; coil is affixed by circuits to power amplifier and tractor case.

EFFECT: stable operation of motor in gas diesel mode with crankshaft revolutions less than 1400 rpm, ensured by automatic adjustment of fuse dose of diesel fuel, proportional to revolutions decrease of crankshaft.

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