Disassembly-free cleaning agent for fuel spray nozzle

A technology for cleaning agents and fuel injectors, applied in detergent compositions, non-surface-active detergent compositions, organic non-surface-active detergent compositions, etc., which can solve deformation, swelling, insufficient combustion, corrosion and discoloration of metal parts and other problems, to achieve the effect of small molecular weight, speed up the dissolution rate, and increase the oxygen content

A technology for cleaning agents and fuel injectors, applied in detergent compositions, non-surface-active detergent compositions, organic non-surface-active detergent compositions, etc., which can solve deformation, swelling, insufficient combustion, corrosion and discoloration of metal parts and other problems, to achieve the effect of small molecular weight, speed up the dissolution rate, and increase the oxygen content

CN102876503BActive Publication Date: 2013-08-14718TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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  • Disassembly-free cleaning agent for fuel spray nozzle
  • Disassembly-free cleaning agent for fuel spray nozzle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Under normal temperature and pressure, weigh 400g of No. 200# solvent oil, then add 25g of n-propylamine, 15g of isopropanol, and 60g of ethyl acetate to obtain a mixture, stir evenly, and obtain 500g of the fuel injection nozzle of the present invention without dismantling Cleaning agent, based on the overall mass of the cleaning agent as 100%, wherein the components and their mass percentages are as follows: 5% carbon remover, 3% accelerator, 12% combustion aid, and 80% diluent.

[0026] The cleaning efficiency of described cleaning agent, the corrosion performance of copper sheet and the impact on rubber and plastics are tested as follows:

[0027] (1) Cleaning efficiency test

[0028] The cleaning efficiency test uses simulated carbon deposit cleaning effect evaluation, figure 1 It is a schematic diagram of the carbon deposition simulation device. In the simulation device, the fuel tank 1 is connected to the first oil pump 2, the first oil pump 2 is connected to t...

Embodiment 2

[0039] Under normal temperature and pressure, weigh 300g of kerosene, add 50g of n-butylamine, 10g of N-methylpyrrolidone, 15g of ethylene glycol monobutyl ether, and 125g of diacetone alcohol to obtain a mixture, stir evenly, and obtain 500g of the present invention. The fuel injection nozzle disassembly-free cleaning agent described above, based on the total mass of the cleaning agent as 100%, wherein the components and their mass percentages are as follows: 10% for the carbon remover, 5% for the accelerator, and 25% for the combustion aid , the diluent is 60%.

[0040] The performance test is carried out to the prepared cleaning agent, and the test method refers to the test method in Example 1. Test results: The cleaning efficiency is 52%, the corrosion level of copper sheet is 0, and it has no effect on plastic and rubber.

Embodiment 3

[0042] Under normal temperature and pressure, weigh 260g of kerosene, 70g of gasoline, add 80g of triethylamine, 40g of N-methylpyrrolidone, 30g of ethanol, and 20g of dimethyl carbonate to obtain a mixture, stir evenly, and obtain 500g of the present invention. No-disassembly cleaning agent for fuel injectors, based on 100% of the total mass of the cleaning agent, the components and their mass percentages are as follows: 16% for the carbon remover, 8% for the accelerator, and 10% for the combustion aid. Thinner is 66%.

[0043] The performance test is carried out to the prepared cleaning agent, and the test method refers to the test method in Example 1. Test results: The cleaning efficiency is 77%, the corrosion level of copper sheet is 0, and it has no effect on rubber and plastic.

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Abstract

The invention discloses a disassembly-free cleaning agent for a fuel spray nozzle and belongs to the field of automobile engines. On the basis that the total mass of the cleaning agent is 100 percent, the disassembly-free cleaning agent for the fuel spray nozzle comprises the following components in percentage by mass: 5 to 22 percent of decarbonizer, 3 to 25 percent of accelerant, 10 to 25 percent of combustion improver and 40 to 80 percent of diluent. The disassembly-free cleaning agent for the fuel spray nozzle is prepared by uniformly mixing the decarbonizer, the accelerant, the combustion improver and the diluents at normal temperature and normal pressure. The cleaning agent can effectively clean deposit of the fuel spray nozzle, avoids deformation and swelling of plastic and rubber,is combusted completely, avoids engine knocking and does not corrode metal parts.

Description

technical field [0001] The invention relates to a non-dismantling cleaning agent for fuel injection nozzles, which belongs to the field of automobile engines. Background technique [0002] The fuel injector is one of the important parts in the automobile engine. Its fuel injection effect directly affects the adequacy of fuel combustion and exhaust emission. Carbon deposits and colloids block the injectors and affect their normal work. [0003] At present, there are three main cleaning agents for fuel injectors, and they are used in different ways. One is to disassemble the cleaning agent, that is, to disassemble the engine, remove the fuel injector, soak in ultrasonic cleaning or clean it with a cleaning machine. This cleaning agent has a better cleaning effect. , but it is easy to damage the performance of the engine and the cost is expensive during the disassembly process. The second is the additive type cleaning agent, adding the cleaning agent to the fuel, and cleaning...

Claims

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Application Information

Patent Timeline
14 Aug 2013
Publication
CN102876503B
IPC
C11D7/32; C11D7/26; F02B77/04
Inventors
顾秀杰; 刘晓林