摘要:
The invention relates to a protective device 1 for a spark-ignition gas engine 2 having a throttle valve 2.1 for gas/air mixture GL and having an exhaust-gas turbocharger 2.5 which has a turbine 2.2 and is assigned a throttle member 2.3 for exhaust gas A, wherein a detection unit 1.1 is provided, by means of which an actual differential pressure Δρ across the throttle valve 2.1 can be detected, and a control unit 1.2 is provided, by means of which the position of the throttle member 2.3 can be changed depending on the actual differential pressure Δρ, wherein the throttle member 2.3 for the exhaust gas A is provided only downstream of the turbine 2.2 in relation to the flow direction of the exhaust gas A. The invention also relates to a method for regulating an exhaust-gas throttle member 2.3, connected downstream of a turbine 2.2 of an exhaust-gas turbocharger 2.5, of a spark-ignition gas engine 2 with a throttle valve 2.1 in the mixture section 2b, in which method the differential pressure Δρ across the throttle valve 2.1 is monitored and the throttle member 2.3 is closed partially in the case of an excessively high differential pressure Δρ, until the differential pressure Δρ has fallen to a desired value.
摘要:
The present invention relates to a method for reducing emissions from an engine. This may be, for example, a stationary engine such as that of a current generator or a combined heat and power plant, or an engine in a vehicle such as a passenger car, railway vehicle, ship etc.
摘要:
The present invention provides a method for reducing the emissions of internal combustion engines which are operated with liquid fuel, having the following method steps: cleaning, fuel conditioning, friction reduction, gas infeeding into the combustion system of the internal combustion engine, and provides a method for reducing the emissions of internal combustion engines which are operated with gaseous fuel, having the following method steps: friction reduction and gas infeeding into the combustion system of the internal combustion engine. An internal combustion engine according to the invention has a combustion system and a fuel system for storing fuel and for supplying fuel to the combustion system, has an exhaust system, has a gas infeed system designed to feed gas into the combustion system of the internal combustion engine, and has a gas infeed system designed to feed gas into the exhaust system of the internal combustion engine.
摘要:
The invention relates to an operating method for an internal combustion engine which can be selectively operated by means of a liquid fuel and a second fuel, especially a gaseous fuel. When the internal combustion engine is operated using the second fuel, especially gas, at least one thermally loaded component of the internal combustion engine is cooled using the liquid fuel. The invention also relates to a fuel supply system for an internal combustion engine that can be operated by means of liquid and gaseous fuels.
摘要:
A bi-fuel control system and assembly for modifying and operating a diesel engine (30) to the extent that the engine is capable of running in either a full diesel fuel diesel mode or a bi-fuel mode, where bi-fuel is defined as a mixture of a methane based gas (10) and diesel fuel. The control system and assembly are designed to provide for either manual or automatic transfer between modes for continuous engine operation without interruption in output and at substantially equivalent efficiency levels. A gas control sub-system and sub-assembly are provided to control the amount of gas supplied to the diesel engine (30) in the bi-fuel mode, and an electronic control sub-system and sub-assembly are provided to control the overall system and assembly based on engine load as determined from the intake manifold air (28) pressure.
摘要:
Internal combustion engine with a methane feed system, characterized in that it is provided with a plurality of methane injection devices (8) respectively associated with the various cylinders of the engine and mounted within respective seats (9) communicating with a common distributing conduit or rail (11) for feeding methane, and in that the seats (9) for the injection devices (8) and said common distributing conduit (11) are formed in an auxiliary body (7) separate from the intake manifold (3) and the head of the engine (1).
摘要:
A process for operating a combustion engine (300) which comprises the steps of converting a fuel precursor containing hydrogen to produce substantial amounts of engine-fuel containing free hydrogen and combusting substantial amounts of engine-fuel as a stratified-charge fuel within each combustion chamber of the engine (300). Waste energy resources selected from the group including engine-cooling-system heat (14), exhaust-gas heat (22), and stopping energy (380), are utilized to produce engine-fuel from feedstocks selected from the group (of Equations 1-14) including fuel alcohols, phenols, ammonia, ammonium compounds, gasoline, diesel fuel, cyanoacetic acid, cyanocarbons, carbon, and water. Fuel delivery is preferably as a stratified charge by instrumented fuel injector (40) to the combustion chamber during compression conditions of engine operations (by engine 300) and when this is not practical as a result of fuel pressure loss due to storage depletion or fuel pressurization system failure, fuel delivery during intake conditions of the combustion chamber are practiced.
摘要:
The invention provides a device for converting an alcohol to an ether when fitted to a compression ignition engine, the device comprising a heal exchanger (28) having an inlet to receive the alcohol and an outlet in communication with the inlet end of a catalytic conversion chamber (44) which contains a catalyst for conversion of an alcohol to an ether. The conversion chamber (44) has an outlet pipe (46) to lead the ether to a cylinder (32) of a compression ignition engine. Alcohol is fed from a storage tank (10) along lines (18) and (48) direct to the cylinder (32) and along line (26) to heat exchanger (28). The invention also comprises a method of modifying a compression ignition engine using the device and a method of running the modified engine.