Oil limiter having function of correcting oil mass for single cylinder diesel and manufacturing method thereof

Abstract

The invention discloses an oil limiter having a function of correcting oil mass for a single cylinder diesel and a manufacturing method thereof. When manufacturing, the following factors of the oil limiter are confirmed: the value three characteristic parameters and manufacturing bias, an oil mass correcting route confirmed according to the torque reserve property requirement of the speed characteristics of the diesel, a cranking enrichment route meeting the cold starting performance and a starting spring pre-tightening force value for preventing the oil limiter misacting with the speed characteristics of the diesel. The oil limiter comprises a correcting rod (1), a corrector body (2), a correcting spring base (3), a starting spring (4), a correcting nut (5) and a correcting spring (6). Through using the oil limiter of the invention, the full load of the diesel can meet the demand of torque reserve, the black smoke which is caused by continuously increased oil mass can be prevented, and the oil limiter meets the national standard of torque reserve of the mobile diesel, the checking demand of revolving speed adaptability coefficient and discharging and smoke intensity demands. Whenstarting, the oil limiter meets the cranking enrichment demand and the diesel can be started easily.

Description

technical field [0001] The patent of the invention relates to the oil limiter technology with oil volume correction for a single-cylinder diesel engine, which is used for the diesel engine to meet the performance requirements of the mobile diesel engine. Background technique [0002] In order to meet the performance requirements of the mobile diesel engine, the single-cylinder diesel engine needs to be installed with an oil limiter with oil volume correction, and the manufactured parameters must be correct, otherwise the diesel engine may not meet the power requirements required by the national standard, or the diesel engine may emit black smoke or Exceeding emission requirements. For example, the 186F series diesel engines with an annual output of nearly 2 million units in China were originally mainly used for fixed-purpose generator sets and water pump sets, etc., mainly for export. The original oil limiter of the diesel engine is actually a speed stabilizer. When the die...

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Problems solved by technology

The original oil limiter of the diesel engine is actually a speed stabilizer. When the diesel engine is running at a sudden load higher than the rated speed, it can reduce the overspeed and improve the stability of the diesel engine. Since the oil limiter has a large starting oil stroke, the calibration The working condition can not play the role of oil limit

At present, domestic sales of 186F and other diesel engines are mainly used for rotary tillers, tractors, and small construction machinery for mobile use. The original oil limiter can not play the role of calibrated power limit, and the diesel engine fuel injection pump oil volume speed control fork is actually used. When the medium load increases, the oil quantity shift fork will operate according to the speed regulation characteristic under the force of the speed regulation spring. When it reaches full load, the torque will continue to increase and continue to operate according to the speed regulation characteristic under overload. The increase in fuel supply will cause the diesel engine to emit black smoke. , until the fuel supply increases too much and the black smoke billows and turns off, the diesel engine cannot meet the national standard for diesel engine assessment requirements for mobile use. The cylinder diesel engine should be equipped with an oil limiter with oil volume correction to limit the oil supply in the calibrated working condition to the calibrated power position, and the performance of the diesel engine meets the national standards for the assessment requirements of the torque reserve and speed adaptability coefficient of the diesel engine for mobile use. There is starting enrichment to meet the starting requirements, so it is necessary to design an oil volume limiter with torque correction and starting enrichment correction, referred to as oil limiter

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