Fuel preparation and supply system and method for active pre-combustion chamber

A fuel preparation and supply system technology, applied in mechanical equipment, combustion engines, machines/engines, etc., can solve problems such as dirty scavenging, easy formation of carbon deposits, complex structure, etc., to increase convenience, prevent carbon deposits, The effect of high ignition energy

Pending Publication Date: 2020-12-29
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the above-mentioned patent at least partially achieves a more reliable ignition of a lean fuel mixture than a traditional open spark plug, there are still problems such as unclean scavenging, difficult atomization, easy formation of carbon deposits, and complex structure.

Method used

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  • Fuel preparation and supply system and method for active pre-combustion chamber
  • Fuel preparation and supply system and method for active pre-combustion chamber
  • Fuel preparation and supply system and method for active pre-combustion chamber

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Effect test

Embodiment 1

[0045] Such as figure 1 As shown, the present invention is a fuel preparation and supply system for an active pre-chamber, including a conventional fuel supply system and a fuel-air mixture preparation and supply system. A conventional fuel supply system includes a fuel tank 1, a fuel pipeline, a low-pressure fuel pump 3, a high-pressure fuel pump 10, a second fuel injector 11, a combustion chamber 12, and a fuel tank check valve 13. The fuel-air mixture preparation and supply system includes a fuel tank 1 , Fuel pipeline 2, low-pressure oil pump 3, first fuel injector 4, pre-mixing chamber 5, air pump 6, pressure regulating valve 7, gas nozzle 8, pre-chamber spark plug 9, combustion chamber 12.

[0046] The above design scheme can already complete the preparation and supply of fuel for the active pre-combustion chamber. Based on this scheme, the optimal scheme is given:

[0047] The premix chamber 5 is equipped with a premix chamber intake check valve 15 to ensure that there...

Embodiment 2

[0052] Such as figure 2 As shown, the present invention is a fuel preparation and supply system for an active pre-chamber, including a conventional fuel supply system and a fuel-air mixture preparation and supply system. A conventional fuel supply system includes a fuel tank 1, a fuel pipeline, a low-pressure fuel pump 3, a high-pressure fuel pump 10, a second fuel injector 11, a combustion chamber 12, and a fuel tank check valve 13. The fuel-air mixture preparation and supply system includes a fuel tank 1 , Fuel pipeline, low-pressure oil pump 3, first fuel injector 4, air pump 6, pressure regulating valve 7, gas nozzle 8, pre-chamber spark plug 9, combustion chamber 12, pre-chamber check valve 16.

[0053] The fuel tank 1 has a certain cavity to ensure that when the fuel tank is filled with oil, the fuel injector can spray oil mist into the cavity. The pre-chamber spark plug 9 is a spark plug with a pre-chamber structure. And a pre-chamber check valve 16 is installed on t...

Embodiment 3

[0055] Such as image 3 As shown, the present invention is a fuel preparation and supply system for an active pre-combustion chamber, including a conventional fuel supply system and a second fuel gas preparation and supply system. A conventional fuel supply system includes a fuel tank 1, a fuel pipeline, a low-pressure oil pump 3, a high-pressure oil pump 10, a second fuel injector 11, a combustion chamber 12, and a fuel tank check valve 13. The second fuel gas fuel preparation and supply system includes a gas bottle 2 (specifically, high-pressure gas cylinder / liquefied gas cylinder can be used), pressure regulating valve 7, gas nozzle 8, pre-mixing chamber 5, air pump 6, another pressure regulating valve 7, another gas nozzle 8, pre-combustion chamber spark plug 9, Combustion chamber 12, premix chamber intake check valve 15, pre-combustion chamber check valve 16.

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Abstract

The invention relates to a fuel preparation and supply system and method for an active pre-combustion chamber. The system mainly comprises a conventional fuel supply system and a fuel-air mixed gas preparation and supply system; the conventional fuel supply system comprises an oil tank, a fuel oil pipeline, a low-pressure oil pump, a high-pressure oil pump, an oil nozzle, a combustion chamber andan oil tank one-way valve; and the fuel-air mixed gas preparation and supply system comprises an oil tank, a fuel oil pipeline, a low-pressure oil pump, an oil nozzle, a premixing chamber, a gas pump,a pressure regulating valve, a fuel gas nozzle, a premixing chamber spark plug, a combustion chamber, a premixing chamber oil return one-way valve, a premixing chamber gas inlet one-way valve and a premixing chamber one-way valve. The invention further discloses a fuel preparation and supply method for the active pre-combustion chamber. The fuel preparation and supply system for the active pre-combustion chamber is simple in structure, and meanwhile the effects of optimizing combustion, improving emission, saving fuel and the like can be achieved.

Description

technical field [0001] The invention relates to a fuel preparation and supply system, in particular to a fuel preparation and supply system and method for an active pre-combustion chamber, which belongs to the fuel preparation and supply system for ignition engines. Background technique [0002] With the increasingly stringent requirements on engine emissions and efficiency, gasoline engines are increasingly using lean combustion technology to improve engine thermal efficiency and reduce emission pollutants, and the lean fuel mixture is usually difficult to be stably and reliably ignited by ordinary spark plugs. [0003] The pre-combustion chamber spark plug first uses the spark plug to ignite the fuel in the pre-combustion chamber, sprays the flame through the small hole, and ignites the lean mixture in the cylinder to expand the lean burn limit. In the patent application WO2010EP51164 titled "LASER SPARK PLUG AND PRE-CHAMBER MODULETHEREFOR", the company Bosch presents an e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B19/10
CPCF02B19/10F02B19/109Y02T10/12
Inventor 李理光缪新轲王金秋邓俊
Owner TONGJI UNIV
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