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JP4233878B2 |
To provide an air duct structure capable of preventing corrosion of a cylinder liner sliding surface due to mix of drain into air (scavenging air) by enabling to introduce drain in air to a drain separator with evenly distributing the sa...
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JP2009506252A |
A carburettor for a two-stroke engine includes a substantially circular section flow duct comprising rich (42) and lean (44) flow passages in parallel, through which, in use, air flows in a flow direction and which are separated by a sub...
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JPWO2007004641A1 |
The present invention promotes miniaturization and pollution reduction of a two-stroke engine. The two-stroke engine according to the present invention has a cylinder that accommodates a piston so that it can reciprocate, a scavenging ga...
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JP2009002311A |
To provide a two-cycle engine 1 capable of reducing discharge of harmful substances due to blow-by of unburnt gas and obtaining a stable combustion condition while having a cylinder block 6 manufactured easily at low costs.This two-cycle...
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JP2008274804A |
To provide a two-cycle engine with reduced cost and with improved fuel economy, reducing discharge of harmful substance caused by blowing of unburnt air-fuel mixture, without any major change or modification of constitution of an engine ...
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JP2008274951A |
To greatly simplify manufacture by more simplifying fabrication to store an adjusting slide in a cylinder.This two-cycle internal combustion engine comprises the cylinder 2, and a cylinder head 4 detachably fixed thereto. The cylinder 2 ...
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JP2008274899A |
To provide a hydrogen two-stroke engine with an upper cover scavenging hole capable of improving scavenging capacity, and improving combustion efficiency of hydrogen fuel by taking fresh air into a cylinder while eliminating a defect in ...
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JP4170427B2 |
A direct injection system and control methodology for two-cycle crankcase compression engines wherein the injection timing is advanced from those normally utilized to avoid the incomplete combustion that results from the prior art method...
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JP4160708B2 |
To reduce exhaust amount of THC(total hydrocarbon) by avoiding blow-by of air-fuel mixture into an exhaust port, to increase air-fuel mixture density charged into a combustion chamber by raising scavenging efficiency and to raise an engi...
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JP2008232025A |
To provide a reed valve mounting structure of a stratified scavenging engine capable of reducing the distance from the central line of the engine to a magneto rotor, improving balance of the engine, reducing vibration and noise, preventi...
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JP2008223562A |
To simplify the structure of a check valve used for a scavenging passage of a crank chamber compression type stratified scavenging two-stroke cycle engine to reduce the number of parts, and thereby to reduce a production cost.The stratif...
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JP4153643B2 |
To integrate a slide die of a die for cylinder, to simplify the structure of the die, and to reduce the manufacturing cost by forming paired exhaust passages in each side wall of a crank case and a cylinder, and forming a passage wall of...
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JP4153667B2 |
To prevent the occurrence of acceleration failure and engine stop by avoiding fuel concentration from leaning due to excess of an air quantity to achieve normal combustion in sudden acceleration of the engine in the stratified scavenging...
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JP4152303B2 |
To provide a rotary valve having simple and compact construction for reliably shutting off the flow of fluid without increasing the machining accuracy between the outer peripheral face of a valve and the inner diameter face of a body. A ...
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JP4149621B2 |
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JP2008190365A |
To provide a uniflow two-stroke cycle internal combustion engine that provides a fine control of a swirl ratio by a vane mechanism composed of a first, a second vanes through a simple construction, and a highly accurate control of the sw...
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JP2008531928A |
A reed valve for an internal combustion engine has petals which are curved, such that each petal has a concave surface that faces a concave surface of another petal. The curvature of the petals makes the petals more responsive to changes...
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JP2008180235A |
To provide a high efficiency prime mover for smaller output requirement than the maximum one of an engine, having lighter and smaller construction than conventional one.An internal combustion engine uses a variable compression ratio and ...
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JP2008525717A |
The invention concerns a two-stroke internal combustion engine supplied with gasoline, diesel, fuel, or other conventional fuel comprising a piston (2)-cylinder (1) assembly, said cylinder (1) providing exhaust ports (11), said piston (2...
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JP4120553B2 |
To suppress the discharge of an engine oil to openings in a two-cycle internal combustion engine having the openings for scavenging or exhausting in the internal wall surface of a cylinder. Ports 146 and 148 for scavenging or exhausting ...
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JP2008522074A |
A carburetor for a two stroke engine includes a flow duct comprising rich and lean flow passages separated by a partition, at least one fuel jet communicating with the rich passage, the partition including an aperture towards which the f...
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JP4100401B2 |
An internal combustion engine 10 includes a fuel injection valve 37 for injecting a gasoline fuel into a combustion chamber 25, and a spark plug 35. When the internal combustion engine is operated in a light-load region, the fuel is inje...
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JP4089334B2 |
A breather device of a vehicle engine is arranged so as to shut off an engine intake system from heat of an engine exhaust system and to make effective use of dead space for location. The breather device includes a breather tank arranged...
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JP2008111387A |
To provide a double link type variable compression ratio engine capable of preventing flow of lubricating oil to a scavenging port, and reducing the size of an engine.The two-cycle double link type variable compression ratio engine is pr...
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JP2008106697A |
To lubricate an inner wall face of a cylinder under the condition of reducing consumption of lubricating oil in a two-cycle internal combustion engine wherein a plurality of openings 5a to the inner wall face 8 of the cylinder 2 in a sca...
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JP4082868B2 |
A two-stroke internal combustion engine that emits exhaust gases with reduced amounts of noxious components, such as HC, and has less blow-by of unburned air-fuel mixture has a crank chamber located below a piston and a combustion actuat...
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JP4084469B2 |
A lubrication system for a direct injected two-cycle engine is disclosed having a lubricant pump adapted to discharge lubricant into each crankcase chamber of the engine through a port positioned immediately adjacent the downstream side ...
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JP4074859B2 |
To provide a multi-cylinder two stroke cross-head internal combustion engine capable of realizing high reliability of an engine concerning unexpected stop caused by a failure of a hydraulic device and simplifying mounting and maintenance...
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JP2008069767A |
To improve acceleration by preventing the air-fuel mixture in a combustion chamber from being leaned when a throttle valve is suddenly opened.An air valve 5 for scavenging is formed in a rotary valve having a cylindrical valve element 5a...
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JP4061252B2 |
An interlocking lever having first and second cam faces is mounted on a throttle valve stem, and a throttle valve is arbitrarily opened to perform start-up in a state in which the first cam face makes contact with the choke valve lever a...
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JP4057522B2 |
A turbocharge arrangement especially for a two-stroke diesel engine comprises at least one turbocharger (1) driven by the exhaust gasses from the engine for feeding the engine with supercharged scavenging air, at least one air cooler (2)...
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JP4058240B2 |
An internal combustion engine having a compressed air assisted fuel injection system. The injection system has a compressed air accumulator with a first aperture into the cylinder of the engine and a second aperture into the crankcase of...
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JP4052416B2 |
To provide a simple, compact and low-cost opening and closing valve, such as a choke valve, with improved operativity for a two-cycle engine for supplying thick air-fuel mixture for a combustion chamber and for producing high negative pr...
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JP2008505282A |
A gas exchange control mechanism for an opposed-piston engine which opens and closes inlet and outlet slots provided in the cylinder irrespective of the position of the pistons. The opposed pistons are guided completely or partially duri...
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JP4046412B2 |
A number of embodiments of direct injected V-type outboard motors provided with a very effective fuel supply system wherein the number of components can be significantly reduced as well as the elimination of many of the flexible conduits...
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JP4044894B2 |
A two-stroke constant-pressure turbocharged internal combustion engine has 13 cylinders in a single row and a scavenge air system with at least one elongated scavenge air receiver. The engine has a firing sequence (n1-n13) of the engine ...
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JP4030134B2 |
PURPOSE:To decrease fuel consumption and exhaust emission by driving an exhaust control valve to its exhaust opening rate matching an engine rotational speed and a throttle valve opening, and enable AR combustion (active heating atmosphe...
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JP4028974B2 |
A cylinder and a method for manufacturing a cylinder for an internal combustion engine is provided which avoids the generation of a step portion at the scavenging port without necessitating enhanced precision of the positioning of the wo...
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JP4031602B2 |
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JP2007332972A |
To provide a two-cycle diesel engine for reducing a generation quantity of nitrogen oxide. This two-cycle diesel engine scavenged in the longitudinal direction, particularly, a large capacity two-cycle diesel engine, has at least one cyl...
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JP4022002B2 |
To improve the output of an engine, by making the mixture gas start to be sucked to a crankcase at once from the intake port of the mixture gas, when the crankcase is started to be in a negative pressure by raising a piston from a bottom...
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JP2007309128A |
To provide a stratified scavenging 2-cycle engine capable of expecting the very superior effect in points of stabilizing combustion and preventing blow-by, by making the stratification effect of scavenging more suitable than a convention...
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JP2007303475A |
To provide a turbocharging device capable of effectively removing condensation water from scavenging air supplied to a 2-stroke diesel engine. This turbocharging device is formed by continuously arranging a centrifugal blower 4 from a co...
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JP3136230U |
To provide an air inlet device for an engine and a two-cycle engine using the air inlet device. In a crank case, by pressurizing an air inlet device, a gas path required for combustion in a cylinder and a gas path of the crank case are s...
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JP3994026B2 |
A two-stroke engine in a hand-held working tool such as a motor chainsaw has a combustion chamber delimited by a piston which drives a crankshaft. An outlet for removing exhaust gases from the combustion chamber and an intake for supplyi...
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JP3991714B2 |
An electronic control unit for controlling a fuel injection amount of a two-cycle internal combustion engine with an exhaust control valve wherein the electronic control unit comprises an injection amount determination means for determin...
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JP2007255221A |
To reduce the consumption of lubricating oil in a cylinder, and to improve scavenging efficiency, in a two-cycle internal combustion engine formed by arranging a scavenging chamber 8 having an intake port 10 of compressed intake air on t...
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JP2007239553A |
To provide a two-stroke engine enabling the disposition of a variable valve train around a cam sprocket even if it is of a DOHC type. The two-stroke engine comprises a piston 3 sliding in a cylinder 2 which has no opening in a cylindrica...
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JP2007239463A |
To provide a two-cycle engine of a simple structure and good acceleration. A stratified scavenging type two-cycle engine 1 is constructed with including a pilot air passage 700 sending pilot air to a scavenging passage 9, an air valve 43...
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JP2007231887A |
To reduce amount of consumed lubricating oil in a two-cycle internal combustion engine. An intake port 3 opened and closed by a piston 1 itself is formed and opened on an internal wall face of a cylinder 2 letting the piston 1 reciprocat...
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