DE1115985B - Liquid starter propellant for internal combustion engines - Google Patents

Description

Liquid starter propellant for internal combustion engines The present The invention relates to the combination of a gaseous propellant with an injection or Starter fluid for gasoline or diesel engines, i.e. internal combustion engines, in particular one such combination held under pressure in a container known as "Pressurixed" container is known, the contents of which are opened by opening a normally closed spring valve expands to a certain extent, emptied, sprayed.

The valve is left open for a certain time to allow an im Part of the medium stored under pressure in the container at the moment to drive out.

A starting aid in a closed container is known which proposes diethyl ether and an ether-soluble and combustible gas such as methane or ethylene as the starting fuel in such an amount that the fuel is under increased pressure. It is also known to use nitrogen or carbon dioxide to fill up the remaining volume. According to the invention, a liquid starter propellant for internal combustion engines based on low-boiling ethers, which are enclosed under pressure in a container, contains nitrogen oxide as an additive in such amounts that the combustion liquid can be atomized under positive atomization pressure at a temperature of below -18 ° C.

Alkyl ethers should also include dimethyl ether, diethyl ether, diisopropyl ether, Butyl ether, methyl ethyl ether, methyl propyl ether, methyl isopropyl ether, methyl butyl ether and ethyl isopropyl ether are understood.

The mixture according to the invention should have a boiling point of -52 ° C and filled into the spray container at a pressure of 7 kg / cm2.

The mixture can also contain a small amount of lubricant with the addition of an antioxidant corrosion protection agent to improve and facilitate the starting of internal combustion engines within a temperature range of 52 ° C. below zero to 82 ° C. above zero. Furthermore, for security reasons - the z. B. are prescribed by ship - carbonic acid (CO @ must be added. Such a mixture consists, for example, of 99.885 to 98.2970 /, alkyl ether, 0.10 to 1.70 /, synthetic colloidal graphite lubricant with additive, 0.015 up to 0.0030 /, of an antioxidant, combined with 10 to 400 /, of a propellant gas containing 15 ° / o C 0a and 85 ° / o nitrogen oxide.

The propellant gas should contain at least 65010 nitrogen oxide and be mixed with inert gas up to 3501. The inert gas should be carbonic acid. The propellant gas is able to exert about 451 / a kg pressure at room temperature and a still sufficient atomization pressure at temperatures down to -54 ° C, whereby it consists of a mixture of 15 to 35% carbonic acid and 65 to 85% nitrogen oxide.

In the mixture according to the invention, the pressurized gas penetrates the starter liquid, but it remains inert towards this at all times, especially at an extreme one Range of temperature differences.

The device according to the invention does not in any way reduce the speed of the machine adversely affected. It is emphasized and important that the propellant is on the machine must not have any adverse influence, as it is partly with the starter fluid gets into the engine. On the contrary, it has been found that the tying means the Favorably influenced smoke development at the exhaust of the machine. The inventive Composition has a very beneficial effect when starting such machines, which would otherwise be delayed after the starter was initially operated. The quick start of the machine shortens the start-up time and the fuel mixture absorbed better than usual, and the oil pressure reaches its full height faster, so that a loosening of fuel, which undesirably increases the wear and tear of the engine, is significantly reduced.

It has been found that an alkyl ether; a synthetic one Colloidal lubricant based on graphite and oxidation protection of existing injection or starting mixture in a composition of 99.885 to 88.297 parts of alkyl ether, 0.10 to 1.17 parts of the synthetic colloidal lubricant and 0.015 parts up to 0.003 parts of the anti-corrosion agent without further ado 'A' pressure of 7 kg / cm2 and a temperature of + 20 ° C packed or charged can be, in pressurized gas spray container in connection with a propellant, which consists either of nitrogen oxide by itself or of nitrogen oxide, that with carbon dioxide gas is mixed. The nitrogen oxydul gas is suitable for the combustion process in the Improving the machine after starting, as it does not support flammability is combustible and has a catalytic effect improving the combustion effect owns. The synthetic colloidal graphite lubricant used remains in the Floating liquid; the graphite it contains is flaky, does not bake and also does not clog the supply channels, has no abrasive effect and is so fine that it even goes through filter paper.

The preferred antioxidant is 2,2-methylene-bis (4-methyl-6-tert-butylphenol). The volume fractions of the injection or starting agent in relation to the propellant gas in the pressurized gas container are, for example, the following: 60 to 900 /, of the starting agent and 40 to 100 /, of the propellant gas.

To produce the mixture, the components are mixed thoroughly and finally the lubricant is added and mixed again.

An approximately 340 g container will range from three to fifty starts on average per engine. This number can of course be increased with a correspondingly larger container. Three starts for a 600 horsepower machine can usually be made with an approximately 340 g container be achieved.

The spray container has a mixture of starting liquid and propellant at a pressure of about 7 kg; cm 2 and at -; 20 ° C charged. That guarantees after completion of the pack, an average pressure below the boost pressure, which but is well suited within a temperature range of about +80 to -55 ° C ensure a steady spray or discharge.

Because propellant, starting fluid and lubricant are mixed together are introduced into the closed machine system, the flammability increases of the fuel or the fuel mixture and ensures that the engine starts under the most unfavorable temperature conditions.

The injection or starting agent mixture according to the invention is used for general use when starting engines in particularly cold weather. That The problem is not only in loading or packing the mixture in a practical way To see mass production, but also in getting the product ready for use in the spray cans if they are exposed to extreme cold for a long time. The starting means is sprayed into the inlet or intake duct of the engine or the carburetor introduced. In the event of temperature fluctuations, the agent must also never be allowed to by the Propellant gas are adversely affected, regardless of its partial application the gas must retain its functional characteristics.

To make this obvious, it should be mentioned that the packaged Mixture together with the propellant gas is temperature-resistant in a range from -52 to + 80 ° C have to be. Nitrogen oxydul gas alone or * ideally meets these requirements mixed with carbonic acid. These remain completely inert and under no circumstances go along chemical reactions to the starting agent. One could also use carbon dioxide as a propellant alone, carbon oxide, nitrogen, neon, helium, compressed air, or combinations thereof in connection with the starting liquid in the mixing ratio given above as Use propellant gas. The best, however, is nitrogen oxide.

The propellant does not become liquid even at temperatures below 0 ° C, it still solidifies, but remains gaseous and retains its inherent power, to expel and spray the contents of the container.

Claims (7)

PATENT CLAIMS: 1. Liquid starter propellant for internal combustion engines based on low-boiling ether, which is enclosed under pressure in a container, characterized by the addition of nitrogen oxide in such amounts that the mixture is atomized under positive atomization pressure at a temperature of below -18'C can be, the boiling point of the mixture is -52 ° C. 2. Liquid starter propellant according to claim 1, characterized by an additive a small amount of an inert gas from the group of carbonic acid, nitrogen, Helium and neon. 3. Liquid starter propellant according to claim 1, characterized in that that it contains a small amount of cylinder top oil. 4. Liquid starter propellant according to claim 3, characterized in that the lubricant is colloidal graphite is. 5. Liquid starter propellant according to claim 1, characterized in that it contains a small amount of an antioxidant. 6. Liquid starter propellant according to claim 1, characterized in that the low-boiling ether in particular Alkyl ether, dimethyl ether, diethyl ether, diisopropyl ether, dibutyl ether, methyl ethyl ether, Dipropyl ether, methyl propyl ether, - methyl isopropyl ether, methyl butyl ether or Is ethyl isopropyl ether. 7. Liquid starter propellant according to claim 1, characterized in that the propellant gas exerts a pressure of 45 to 6.9 kg / cm2 at ambient temperature and at least one positive sufficient pressure on the mixture at temperatures down to -54 ° C. B. Liquid starter propellant according to claim 5 and 6, characterized in that it is able to exert about 451/2 kg of pressure at room temperature and a still sufficient atomization pressure at temperatures down to -54 ° C, the propellant gas being a mixture of 15 to 350 / , . Carbonic acid and 65 to 850/0 nitrogen oxide. References considered: U.S. Patent Nos. 2,706,977, 2,709,425, 2,812,754, 2,812,755, 2,862,491; British Patent No. 561359; Swiss patent specification No. 321529.