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WO/1996/018813A1 |
An intake system is described for a spark ignition internal combustion engine having ports per cylinder, which may lead to a common intake valve or two separate intake valves. One of the intake ports (12) is shaped to direct a first flow...
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WO/1996/013655A1 |
The invention relates to an internal combustion engine, especially one with spark ignition and possibly with a catalyst. On the one hand a new design is proposed and on the other this invention can be applied in certain versions to exist...
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WO/1996/010688A1 |
An internal combustion engine is described comprising a cylinder having an intake valve (14), and two manifolds having branches (22, 32) that are configured to supply two gas streams to the intake valve of each cylinder. The two streams ...
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WO/1996/005426A1 |
In a two-stroke engine with ports controlled by the piston and with the air charge or a lean fuel-air mixture precompressed in the crankcase (11), the cylinder space is fed with a jet of rich fuel-exhaust gas mixture from the feed chambe...
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WO/1995/022687A1 |
An intake manifold system (10) is described for a multi-cylinder four stroke spark-ignition internal combustion engine (12). Each cylinder has at least one intake port (20), each intake port (20) being connected at one end to the combust...
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WO/1993/022549A1 |
Fresh air fed into the working chamber (1) of an engine is centrifugally prevented from mixing with the combustion gases deliberately retained therein from one cycle to the next. An assembly for feeding in pressurized fuel (10) is arrang...
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WO/1992/013181A1 |
A four-stroke spark ignited internal combustion engine is described which comprises a variable volume working chamber (14) defined between a reciprocating piston (12) having at least one sealing piston ring (20) and a cylinder (10). An a...
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WO/1991/002144A1 |
This invention relates to a two stroke spark ignition engine having improved fuel and lubricant efficiencies achieved by decreased consumption of fuel and lubricant. The flow of air toward the cylinder (15) for combustion in the engine i...
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WO/1990/002253A1 |
In a two-stroke engine a sleeve-like extension (B) of the piston crown reciprocates into and out of a matching recess (D) in the cylinder head (C) in a manner analogous to a reciprocating sleeve valve. Approaching bottom-dead-centre the ...
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WO/1990/000222A1 |
A two-cycle internal combustion engine provided with a mask wall (8a, 40b), which is formed between a suction valve (6) and an exhaust valve (7) which are arranged above an inner surface (3a) of a cylinder head, and which is adapted to c...
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WO/1989/011026A1 |
The invention relates to a method of improving the operation of an engine. The engine includes a cylinder space (1), a piston (2) movable therein, at least one inlet valve (3), at least one outlet valve (4) as well as at least one inlet ...
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WO/1989/009872A1 |
When a two-stroke combustion engine (10) runs in the no-load or underload mode with intermittent fuel injection, besides the injection nozzles (12) being activated intermittently, the throttle (18) is opened more than is usual on transit...
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WO/1988/000650A2 |
The process comprises: a) a device for evaporating fuels with a pressure and temperature regulated heat exchanger traversed by exhaust gases; b) a device - composed of rotating dosing diaphragms - for the precise metering out, depending ...
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WO/1988/000280A1 |
An internal combustion engine (10) includes a moving piston (28) within a combustion chamber that is temporarily divided into two zones (A, B) when the piston (28) is at and near its minimum volume position. Fuel is confined to a first z...
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WO/1987/002415A1 |
Process for feeding a layered charge into spark ignition engines in which a rich gas mixture is used in the region of the ignition plug (5) and a linear mixture is used elsewhere. The rich mixture is fed at pressure to the ignition plug ...
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WO/1987/000580A1 |
A method of operating a two-stroke spark ignition engine (9) wherein the fuel is injected directly into the engine combustion chamber (22). The timing of the injection of the fuel and the ignition of the fuel charge are varied according ...
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WO/1987/000579A1 |
A method of operating a two-stroke spark ignition engine (9) wherein the fuel is injected directly into the combustion chamber (22). The timing of the injection of the fuel is varied according to engine load and speed conditions. Under l...
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WO/1987/000578A1 |
In a spark ignition engine, fuel is injected directly into the cylinder volume. In order to obtain improved levels of combustion efficiency and reduced emissions the position of the fuel cloud within the cylinder volume is varied with en...
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WO/1987/000575A1 |
In a two-stroke spark ignition engine, fuel is injected through the cylinder wall at a location opposite to and above the level of the exhaust port (120). The fuel is delivered in the form of a number of streams such as, for example, str...
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WO/1985/001317A1 |
A process for carrying out radical-enhanced combustion of fuel in an engine according to which hydrocarbon radicals generated during one combustion cycle in an engine working chamber (16) are seeded in the charge supplied to the working ...
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WO/1985/001315A1 |
Closed organ pipe resonance is induced in the cylinder (12) of a piston I.C. engine by using a resonating mass of gas in a chamber (38) in the piston (14) adjacent its working face, the chamber and cylinder volume being connected by a re...
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WO/1985/001313A1 |
A piston (14) for an internal combustion engine that utilizes combustion wave energy to drive an air chamber (38) in the piston in resonance to transfer highly heated air with little or no unreacted fuel from the air chamber into the com...
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WO/1984/002744A1 |
A method of operating an internal combustion engine (10) of the spark ignition type with a fuel having a high latent heat of vaporization such as methanol by injecting the fuel in two stages, the first major portion of the fuel being inj...
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WO/1983/000536A1 |
A multi-cylinder internal combustion engine (50) in which a portion of the exhaust gas (b) is selectively added to each cylinder (10). The exhaust gas (b) is caused to swirl along the inside wall of the cylinder (10). Air or a fuel/air m...
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WO/1982/004285A1 |
Stratification of charge in a four stroke internal combustion engine in which a stream of air issues from a duct (46) and is directed tangentially into a cylinder (2) to circulate about the cylinder adjacent to the cylinder walls. The ai...
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WO/1980/002724A1 |
In stratified charge engines, a gas free of fuel is introduced during a first section time in the lower part of the chamber, rotated towards the piston; in a second time fuel is added to the gas. The purpose is to provide a mixing device...
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WO/1980/000862A1 |
An energy conversion cycle characterized by the steps of forming fuel and air charges having fuel to air proportions varying from stoichiometric at full engine power to excess air at less than full engine power conditions; increasing by ...
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JP7495197B2 |
To take in an EGR gas while stabilizing the combustion of a sub-combustion chamber, in an internal combustion engine with the sub-combustion chamber which takes in an air-fuel mixture injected from an intake port.In an internal combustio...
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JP2024067707A |
An object of the present invention is to provide a control device for an internal combustion engine that is capable of stable combustion. A control device for an internal combustion engine having a fuel injection valve that injects fuel ...
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JP7437120B2 |
Provided is an internal combustion engine control device capable of reducing a measurement load and calculating a flow velocity around an ignition plug. The internal combustion engine control device includes an inter-gap voltage calculat...
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JP2023140948A |
To provide an air cleaner capable of mixing moisture with air to be sucked into an internal combustion engine without using devices such as a water injection injector.An air cleaner 1 includes: a filter 6 for filtering air to be supplied...
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JP7309114B2 |
To suppress a misfire at a low load.A uniflow scavenging type two-cycle engine includes: a scavenging chamber 146 formed with an inflow port 146a; a cylinder 110 with a scavenging port arranged inside the scavenging chamber 146; a plural...
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JP7040312B2 |
To provide a premixed compression ignition type engine which has a metal discharge electrode part facing a combustion chamber on the ceiling surface of the combustion chamber at its position near a fuel injection port of a fuel injection...
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JP7040311B2 |
To provide a premixed compression ignition type engine which has a metal discharge electrode part facing a combustion chamber on the ceiling surface of the combustion chamber at its position near a fuel injection port of a fuel injection...
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JP7001002B2 |
To provide a premixed compression ignition type engine capable of stabilizing combustion at the late stage of the combustion while delaying a timing for starting the self-ignition of air-fuel mixture from a compression top dead center, b...
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JP6988382B2 |
To provide a control device for an internal combustion engine enabling an air-fuel mixture having an intended air-fuel ratio to be present in the vicinity of an ignition plug at ignition timing.A control device (40) is applied to an inte...
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JP2021156196A |
To properly control a tumble flow and fuel injection timing while taking into consideration a temperature condition (cold temperature or hot temperature) of an internal combustion engine.A control device of an internal combustion engine ...
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JP2021143629A |
To provide an internal combustion engine which comprises a water injection device for injecting water to the inside of a cylinder, injects water according to an operation state, efficiently cools the inside of the cylinder, and can perfo...
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JP2021021340A |
To reduce an amount of NOx emission.A fuel injection control device for an engine 1 includes a swirl generating part (swirl control valve 56), a fuel injection part with multi-injection holes (injector 6), an ignition part (ignition plug...
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JP2021021338A |
To reduce an amount of NOx emission.A fuel injection control device for an engine 1 includes a swirl generating part (swirl control valve 56), a fuel injection part with multi-injection holes (injector 6), an ignition part (ignition plug...
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JP2021021339A |
To reduce an amount of NOx emission.A fuel injection control device for an engine 1 includes a swirl generating part (swirl control valve 56), a fuel injection part with multi-injection holes (injector 6), an ignition part (ignition plug...
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JP2021021337A |
To reduce an amount of NOx emission.A fuel injection control device for an engine 1 includes a swirl generating part (swirl control valve 56), a fuel injection part with multi-injection holes (injector 6), an ignition part (ignition plug...
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JP6742325B2 |
An electronic injection two-stroke endothermic engine comprising an upper fuel injector (13) and a lower fuel injector (14), both accommodated in an intake duct (12) directly facing the cylinder (1), the latter closed by a head to form a...
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JP2020067021A |
To provide an internal combustion engine which can suppress the adhesion of fuel injected from a fuel injection valve to an intake valve, and can suppress the lowering of the emission of an exhaust gas.An engine 10 comprises a fuel injec...
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JP6597736B2 |
To actualize stable combustion even in an environment where a temperature in a combustion engine becomes lower.A control device for an engine where SI combustion of air-fuel mixture is started by flame propagation and then CI combustion ...
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JPWO2018135191A1 |
Provided is a two-stroke engine that does not require the use of a high-pressure injection system and can suppress blow-by by layered scavenging even when applied to a long-stroke engine. The two-stroke engine communicates with the crank...
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JP2019065776A |
To provide a fuel injection nozzle for an internal combustion engine for, even when arranged at the center of the combustion chamber, actualizing the slanting-angle collision of fuel with the swirl flow of intake air flowing along the wa...
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JP2019065777A |
To provide a fuel injection nozzle for an internal combustion engine for, even when arranged at the center of a combustion chamber in view from the axial direction of a cylinder, greatly promoting the split of fuel and the mixture with i...
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JP6485137B2 |
To suppress occurrence of accidental fire in switching a TCV (tumble control valve) from a closing operation to an opening operation, in a case where an air fuel mixture in a combustion chamber is burned in a lean state, and an internal ...
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JP6465142B2 |
When it is determined that the igniting environment is out of the desired range, the variable valve mechanism is controlled so that the swirl ratio is increased. When the swirl ratio becomes high, the discharge spark and the initial flam...
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