A direct injection gas nozzle and its engine and power system

A technology for power systems and gas nozzles, applied in gaseous engine fuels, engine components, combustion engines, etc., can solve problems such as ablation, and achieve the effects of small unit volume, high energy density, and light weight

Active Publication Date: 2020-09-29
SHANGHAI KELAIPU ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a direct injection gas nozzle and its engine and power system, which can be used for direct injection of oxygen, hydrogen, natural gas and other fuel gases and combustion-supporting gases. The gas direct injection nozzle is resistant to high temperature ablation, no tempering, It can be self-cooling, which solves the service life problem of the current hydrogen nozzle

Method used

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  • A direct injection gas nozzle and its engine and power system
  • A direct injection gas nozzle and its engine and power system
  • A direct injection gas nozzle and its engine and power system

Examples

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Embodiment 1

[0041] The gas direct injection nozzle of the present invention is such as Figure 1 ~ Figure 4 As shown, the hydrogen nozzle 13 is composed of a housing, a gas collecting chamber 28, a nozzle spray hole 26 and a gas passage 25, and the gas passage passes through the gas collecting chamber and is connected to the nozzle spray hole. The upper part of the gas channel is equipped with a spring 20, the lower part is equipped with a hollow plunger 23, and the wall of the hollow plunger tube of the gas collecting chamber section of the gas channel is provided with a plunger nozzle 27. The upper part of the gas collection chamber is provided with a plunger upper gas bearing 22, and the lower part is provided with a plunger lower gas bearing 21. The hollow plunger is provided with a plunger stopper 24. The housing of the casing is provided with an electromagnetic coil 29, and the plunger is limited Install with the solenoid coil. Through the electromagnetic coil to pull in and release...

Embodiment 2

[0051] Another embodiment of the present invention is as Figure 7 As shown, the hydrogen fuel engine is a two-stroke engine, including a cylinder 5, a cylinder head 40, a crankcase 35, and a water sump 6. The cylinder head is provided with an oxygen nozzle 34 and a spark plug 36, and the cylinder wall is provided with intake holes 37 and exhaust holes. 41. A crankshaft 45 is provided in the crankcase, a piston 43 is provided in the cylinder, and the piston is connected to the crankshaft through a connecting rod 44. The structure of the oxygen nozzle 34 is the same as that of the direct gas injection nozzle of the first embodiment.

[0052] The operation mode of the oxygen direct injection pure hydrogen combustion internal combustion engine power system of the present invention is: 4MPa hydrogen enters the cylinder of the hydrogen fuel engine through the air intake hole, and is ignited by contact with oxygen through piston compression. 2MPa high-pressure oxygen is injected into ...

Embodiment 3

[0057] The third embodiment of the present invention is as Image 6 As shown, the hydrogen fuel engine is a four-stroke engine including a cylinder 5, a water sump 6 and a crankcase 35. The top of the cylinder block is provided with an oxygen nozzle 34, a spark plug 36, an air inlet 38 and an exhaust hole 41. The crankcase 35 is provided There is a crankshaft 45, a combustion chamber 46 in the cylinder, a piston 43 is arranged in the cylinder, and the piston is connected to the crankshaft 45 through a connecting rod 44. The lower outlet of the water sump 6 of the hydrogen fuel engine is connected to the purification unit, the liquid outlet is connected to the circulating water tank, and the circulating water tank is connected to the water sump 6 through a water supply pipe and a three-way valve. The structure of the oxygen nozzle 34 is the same as that of the direct gas injection nozzle of the first embodiment.

[0058] The operation mode of the oxygen direct injection pure hydro...

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Abstract

The invention relates to a direct injection gas nozzle and an engine and a power system of the direct injection gas nozzle. The nozzle consists of a shell, a gas collecting chamber, a nozzle injectionhole and a gas passage; the gas passage penetrates through the gas collecting chamber and communicates to the nozzle injection hole; the upper part of the gas passage is provided with a spring, and the lower part of the gas passage is provided with a hollow plunger; a plunger injection hole is formed in the pipe wall of the gas collecting chamber section of the gas passage; the upper part of thegas collecting chamber is provided with a plunger upper gas bearing, and the lower part of the gas collecting chamber is provided with a plunger lower gas bearing; the hollow plunger is provided witha plunger limiting stopper; the body of the shell is provided with an electromagnetic coil; and the plunger limiting stopper and the electromagnetic coil are arranged in a manner of matching. The direct injection gas nozzle can be used for direct injection of gases, such as oxygen, hydrogen, natural gas and argon, is capable of resisting high temperature and high pressure, and is not easy to temper; self cooling can be performed on the direct injection gas nozzle by utilizing the injected gas, so that the service life of a hydrogen nozzle is prolonged.

Description

Technical field [0001] The invention belongs to the technical field of new energy engines, and relates to a direct injection gas nozzle and its engine and power system. Background technique [0002] Energy shortages, environmental pollution, and global climate change make it urgent to develop clean, efficient, safe and sustainable energy sources. Among them, hydrogen energy is being valued by more and more countries. In the 21st century, the engine industry has developed rapidly, but currently gasoline and diesel engines are still the main types of vehicle engines. Both gasoline and diesel are non-renewable resources. In order to alleviate a series of negative effects caused by the lack of petroleum resources and reduce air pollution and engine exhaust emissions, it is necessary to find alternative fuels for engines, and hydrogen energy is currently the most ideal clean fuel. As the environmental protection measures of countries around the world become more and more stringent, h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M21/02F02B43/10F02B41/06F02B41/10F02B75/02F01N5/02
CPCF01N5/02F02B41/06F02B41/10F02B43/10F02B75/02F02B2075/025F02B2075/027F02M21/0206F02M21/0227F02M21/0254F02M21/0263Y02T10/12Y02T10/30
Inventor 贾鹏
Owner SHANGHAI KELAIPU ENERGY TECH CO LTD
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