JPH06510072A - carburetor fuel additive - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] carburetor fuel additive This invention has achieved technical improvement in the cleanliness maintenance performance of the suction mechanism of a gasoline engine. and to optimize the cost-benefit ratio of known gasoline additives. Concerning the use of active fuel components in known additive technology for the purpose of be.

Petroleum fractions (neutral and transparent raw materials ranging from light to heavy) are used as gasoline additives. It is known for use as a carrier oil/active ingredient in Gasoline The impact of these fractions on the effectiveness of cleanliness maintenance in the engine suction system. It is known that the sound appears as a function of its concentration.

The requirements for valve cleanliness and the degree of effectiveness to be achieved have increased especially recently. Existing carrier oil technology is no longer compatible with these technologies. Increased octane requirements and higher oil concentrations are not commensurate with conventional Petroleum fractions should be considered critical when used in high concentrations.

Various petroleum fractions, mixtures thereof, and fully synthetic carrier oils are So far, I have failed to obtain satisfactory results.

Known commercially available polyether amine-based additives (data C) A) has been shown to give satisfactory results in its use. death However, even if the concentrations indicated by the manufacturer are acceptable, critical fuels and field It is far from showing sufficient suction pulp cleanliness maintenance performance in trial use.

Increased concentration is expected to affect performance, but conventionally as an added active ingredient Test using carrier oil (300 seconds (sec)) Turbine head oil, According to data sheet B), it should be improved by adding carrier oil. Additives have a limited degree of effectiveness, and carrier oxides that can be added are The amount of oil depends on other factors (e.g., increased octane requirements, higher oil concentrations, is limited by the pump's flow rate limitations) and further depends on the carrier oil chosen. Therefore, there is little room left for a practical answer.

The object on which the invention is based is that when used as an additional additive to fuels, , the effectiveness of the additives used so far in terms of cleanliness maintenance and cleaning performance. of active ingredients without the need for higher additive concentrations. It is.

As a result of the use of unconventional hydrogenated low volatility active ingredients according to the present invention, concentration The maximum effectiveness as a number has moved in the direction of a clear improvement in effectiveness. on the other hand, Base additives are at the same concentration level and addition ratio as conventional carrier oils. was maintained.

The viscosity of the active ingredient according to the invention at 100°C ranges from 4°0 to 8.0°C. ST, and the viscosity index is 120 to 160.

The concentration of the active ingredient according to the invention is between 50 and 1000 pρ■/wt, in particular The important range is 200 to 800 ppm/1IIt.

Other base additive technologies (Mannich bases, additives) and succinimide/polyyl Different test engines (MB M102E, letter) for sobutylene (additive ■) F2N.

Toyota Camry and BMW 528i), different test programs, 8 different Road tests on different car models, as well as tests with different fuels, are As a result of the addition of the active ingredient according to the invention to the gas additive, an improvement in effectiveness was shown.

The table shown below shows the conventional additives with addition of different amounts of active ingredient according to the invention. It shows the average improvement in the effectiveness of r, n, m. This improvement has a different suction valve Achieved in testing, such as a “% improvement” over the conventional additive technology involved. The sea urchin is displayed on the screen. In contrast, adding a conventional carrier oil to Additive I The improvement obtained by this is only 6%.

Increased effectiveness by adding active ingredients Activity according to the invention Concentration Additive Component concentration (%) Improvement (%) 100% Additive I 50 12 ]00% Additive 1 75 22 100% Additive 1 100 38 ]00% Additive I 0 0 100% Additive II 100 29 100% Additive ■ 0 0 100% Additive II [10011 Basically, the present invention provides a unique Unconventional hydrogenated, low-volatility carrier oil with efficacy-enhancing properties. It consists in using active ingredients. The above improvement in effectiveness is clearly due to the carrier oil. exceeds what would be expected from an increase in the concentration of active ingredients according to the present invention. It is something that should be attributed to the characteristics of the individual.

Typical specifications for active ingredients according to the present invention are as shown in the following table: The base oil is

Test method Minimum value Representative value Maximum value Color, ASTM D1500 < 0.5 specific gravity g/ml D 1298 0.822 0.826 0.850 Flash point 'CD92 217 233 240 Pour point 'CD97 -18 -2 0 Viscosity 40.0”CcST DIN 51562 24.3 Viscosity 100.0℃c sT DIN 51562 5.00 5.16 5.20 Viscosity index D 22 70 145 149 153 Datasheet A A gasoline additive for maintaining the cleanliness of the suction mechanism of gasoline engines. Guarantees excellent performance in cleaning and maintaining cleanliness of the suction valve. The purpose is to significantly reduce the amount of sediment. Additionally, this additive can be added to the injection nozzle Provides excellent performance in cleaning and maintaining cleanliness.

These properties use different mouth and gas test methods for different gasolines. Proven by testing. These are Shino R5 carburetor cleanliness tests, Jyo 205G7I large nozzle test, Opel Kadett, VW Boro and Mercede Includes Sventz M102E suction valve test.

These results indicate that, if used at the recommended concentrations, the additive ■ improves the cleanliness of the suction mechanism. It confirms that you have complete control. For removing sediment from the suction mechanism Improve operability, reduce fuel consumption, restore performance and reduce exhaust emissions. can be done.

Recommended concentration: Physical: Specific gravity at 15°C: 890 g/kg Viscosity 40’C: 95cST O°C1100cST Flash point, PMCC, “C47 Chemical data: Nitrogen 1% by weight 0.42 Data sheet B Representative analysis data Test method Minimum value Representative value Maximum value Color, ASTM D1500 2.5 COC flash point 'CD92 246 PM flash point 'CD92 228 Pour point "CD97 -9 -6 Viscosity 40.0°CcST DIN51562 81 85.5 89.0 Viscosity 100.0’CcsT DIN51562 10.3 Viscosity Index D 2270 102 102 Lumspotom residual 0.15 Carbon weight% Sulfur weight% D 2622 0.70 Copy and translation of amendment) Submission form (Article 184-8 of the Patent Act) February 25, 1994

Claims (1)

[Claims] 1. Improving the cleanliness maintenance performance of the suction mechanism of gasoline engines and improving the cleanliness of gasoline additives. Hydrogenated low volatility in additive technology for optimization of cost-benefit ratio Use of sexually active ingredients. 2. Hydrogenated base oil as active ingredient with the following specifications. Test method Minimum value Representative value Maximum value Color, ASTM D1500 <0. 5 Specific gravity g/ml D1298 0.822 0.826 0.850 Flash point ℃　　　D92　　　217　　233　　240 Pour point ℃　　　D 97 -18 -20 Viscosity 40.0℃ cST DIN515 62 24.3 Viscosity 100.0℃cST DIN51562 5.00 5.16 5.20 Viscosity Index D2270 145 149 153