TRACTOR AUTOMATIC GAS-DIESEL SYSTEM Russian patent published in 2007 - IPC F02B43/00 F02M31/00 

FIELD: transport engineering.

SUBSTANCE: invention can be used in agricultural tractors powered by diesel engines type ЯМЗ-240Б and ЯМЗ240БМ for organizing their operation at gas-diesel mode. Air cleaner with air supply hose is connected with mixer. Mixture supply hose connected through intake pipe with engine is also connected to mixer. Gas-cylinder plant consists of cylinders to which the following devices are connected successively by pipelines: service valve, gas filter, high-pressure reducer, electromagnetic gas valve and low-pressure reducer. Gas is installed in gas outlet channel of low-pressure reducer. Gas meter is connected by gas supply hoses with gas jet and mixer. System is furnished with mode selector, generator and electronic unit of electromechanical regulator. Mode selector consists of flip-flop, frequency-to-voltage converter, threshold detector, logic unit, check unit and supply module. Temperature transmitter, high-pressure fuel pump and generator with speed sensor are mounted on engine. Temperature transmitter is connected with flip-flop is connected with logic unit, speed sensor is connected with said converter, converter is connected with threshold detector, and threshold detector is connected with logic unit. The latter is coupled with electromagnet of priming dose limiter. Said limiter is connected with fuel pump. Limiter mechanism consists of electromagnet, strip and position pickup connected with check unit. Electronic unit consists of pulse generator, pulse-width modulator, amplifier and supply module. Mounted of fuel are mechanical regulator, regulator lever, priming dose limiter and regulator lever position pickup connected with pulse-with modulator. Amplifier and gas meter are connected to each other, and filler valve is connected with gas-cylinder plant and filling device.

EFFECT: provision of stable operation of diesel and gas-diesel fuel, high capacity, low cost and improved quality.

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