Internal Combustion Engine as well as Retrofitting/Conversion Kit for such an Internal Combustion Engine

• US 20120085322A1
• Filed: 10/12/2011
• Published: 04/12/2012
• Est. Priority Date: 10/12/2010
• Status: Abandoned Application

• Current Assignee: Alfred Trzmiel
• Original Assignee: Alfred Trzmiel
• Inventors: Trzmiel, Alfred
• Application Number:
  US13/271,257
• Publication Number:
  US 20120085322A1
• Time in Patent Office: Days
• US Class Current: 123/470
• CPC Class Codes: F02B 17/00 Engines characterised by means for effecting stratification of charge in cylinders
• CPC Class Codes: F02B 29/0406 Layout of the intake air cooling or coolant circuit
• CPC Class Codes: F02B 3/06 with compression ignition compression ignition engines using air or gas for blowing fuel into compressed air in cylinder F02B13/02
• CPC Class Codes: F02B 37/00 Engines characterised by provision of pumps driven at least for part of the time by exhaust
• CPC Class Codes: F02B 43/00 Engines characterised by operating on gaseous fuels; Plants including such engines engines characterised by the gas-air charge being ignited by compression ignition of an additional fuel F02B7/06; engines convertible from gas to other fuel consumption F02B69/04
• CPC Class Codes: F02D 19/0605 to adjust the fuel pressure or temperature
• CPC Class Codes: F02D 19/0607 to adjust the fuel mass or volume flow
• CPC Class Codes: F02D 19/0634 Determining a density, viscosity, composition or concentration F02D19/087 takes precedence
• CPC Class Codes: F02D 19/0642 at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions
• CPC Class Codes: F02D 19/0647 the gaseous fuel being liquefied petroleum gas [LPG], liquefied natural gas [LNG], compressed natural gas [CNG] or dimethyl ether [DME]
• CPC Class Codes: F02D 19/066 Retrofit of secondary fuel supply systems; Conversion of engines to operate on multiple fuels
• CPC Class Codes: F02D 19/0692 Arrangement of multiple injectors per combustion chamber
• CPC Class Codes: F02D 19/081 Adjusting the fuel composition or mixing ratio; Transitioning from one fuel to the other
• CPC Class Codes: F02D 19/105 operating in a special mode, e.g. in a liquid fuel only mode for starting
• CPC Class Codes: F02D 2200/0611 Fuel type, fuel composition or fuel quality
• CPC Class Codes: F02D 2250/31 Control of the fuel pressure
• CPC Class Codes: F02D 2400/11 After-sales modification devices designed to be used to modify an engine afterwards
• CPC Class Codes: F02D 41/0025 Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
• CPC Class Codes: F02D 41/0027 the fuel being gaseous non-electrical control F02D19/02
• CPC Class Codes: F02D 41/062 for starting F02D41/061 takes precedence
• CPC Class Codes: F02D 41/08 : for idling F02D41/06, F02D41/16 take precedence
• CPC Class Codes: F02D 41/1459 : the characteristics being a hydrocarbon content or concentration
• CPC Class Codes: F02D 41/1461 : of the exhaust gases emitted by the engine
• CPC Class Codes: F02D 41/1466 : the characteristics being a soot concentration or content
• CPC Class Codes: F02M 21/0278 : Port fuel injectors for single or multipoint injection into the air intake system
• CPC Class Codes: F02M 21/0281 : Adapters, sockets or the like to mount injection valves onto engines; Fuel guiding passages between injectors and the air intake system or the combustion chamber
• CPC Class Codes: F02M 21/029 : Arrangement on engines or vehicle bodies; Conversion to gaseous fuel supply systems
• CPC Class Codes: F02M 2200/95 : Fuel injection apparatus operating on particular fuels, e.g. biodiesel, ethanol, mixed fuels
• CPC Class Codes: F02M 26/05 : High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the compressor
• CPC Class Codes: F02M 26/10 : having means to increase the pressure difference between the exhaust and intake system, e.g. venturis, variable geometry turbines, check valves using pressure pulsations or throttles in the air intake or exhaust system
• CPC Class Codes: F02M 35/10216 : Fuel injectors; Fuel pipes or rails; Fuel pumps or pressure regulators
• CPC Class Codes: F02M 43/00 : Fuel-injection apparatus operating simultaneously on two or more fuels, or on a liquid fuel and another liquid, e.g. the other liquid being an anti-knock additive
• CPC Class Codes: F02M 43/04 : Injectors peculiar thereto
• CPC Class Codes: F02M 63/0225 : Fuel-injection apparatus having a common rail feeding several injectors F02M63/0003 takes precedence; Means for varying pressure in common rails; Pumps feeding common rails
• CPC Class Codes: F02M 69/044 : for injecting into the intake conduit downstream of an air throttle valve
• CPC Class Codes: F02M 69/045 : for injecting into the combustion chamber F02M69/046 takes precedence
• CPC Class Codes: Y02T 10/30 : Use of alternative fuels, e.g. biofuels

Abstract

An internal combustion engine with combustion chambers into which liquid and gaseous fuel is introduced together with intake air is operated, at least predominantly, with only one type of fuel in a range in which a harmful HC excess is produced by internal combustion. A retrofitting/conversion kit for such an internal combustion engine has at least one securing plate for at least one injection nozzle for gaseous fuel, wherein a supply conduit for the gaseous fuel is connectable to the at least one injection nozzle, wherein the at least one securing plate is an intermediate flange to be connected between a cylinder head of the internal combustion engine and an intake manifold of the internal combustion engine.

Claims

1-13. -13. (canceled)

14. An internal combustion engine with combustion chambers into which liquid and gaseous fuel is introduced together with intake air, wherein the internal combustion engine is operated, at least predominantly, with only one type of fuel in a range in which a harmful HC excess is produced by internal combustion.

15. The internal combustion engine according to claim 14, wherein the internal combustion engine when starting, when at idle, or when staring as well as at idle is operated with only one type of fuel or at least predominantly with only one type of fuel.

16. The internal combustion engine according to claim 15, wherein said one type of fuel is liquid fuel.

17. The internal combustion engine according to claim 14, wherein the internal combustion engine at full load range is operated with only one type of fuel or at least predominantly with only one type of fuel.

18. The internal combustion engine according to claim 14, wherein the internal combustion engine at full load is operated with liquid and gaseous fuel.

19. The internal combustion engine according to claim 14, wherein the internal combustion engine in a transient range is operated with only one type of fuel or at least predominantly with only one type of fuel.

20. The internal combustion engine according to claim 14, wherein the liquid fuel is diesel fuel and wherein the internal combustion engine, in the range in which a harmful HC excess is produced, is operated exclusively with the diesel fuel or at least predominantly exclusively with the diesel fuel.

21. The internal combustion engine according to claim 14, wherein the internal combustion engine is an Otto-cycle engine and the liquid fuel is gasoline, wherein the gasoline or the gaseous fuel is used as the sole fuel or at least predominantly as the sole fuel in a range in which upon mixed operation with gaseous fuel and gasoline a harmful HC excess is produced.

22. The internal combustion engine according to claim 14, wherein the liquid or gaseous fuel is injected eccentrically into an intake pipe or an intake channel near an inlet valve.

23. The internal combustion engine according to claim 14, wherein an injection of the gaseous fuel into the combustion chambers is realized near an inlet valve.

24. The internal combustion engine according to claim 14, comprising at least one pressure control valve that adjusts an injection pressure of the gaseous fuel to all operating states.

25. A retrofitting/conversion kit for an internal combustion engine according to claim 14, the kit comprising at least one securing plate for at least one injection nozzle for gaseous fuel, wherein a supply conduit for the gaseous fuel is connectable to the at least one injection nozzle, wherein the at least one securing plate is an intermediate flange to be connected between a cylinder head of the internal combustion engine and an intake manifold of the internal combustion engine.

26. The retrofitting/conversion kit according to claim 25, wherein the at least one injection nozzle is arranged eccentrically to a passage in the securing plate.

27. The retrofitting/conversion kit according to claim 25, comprising at least one sensor for detecting a quality of the gaseous fuel, wherein the at least one sensor projects into a passage of the securing plate.