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JP2003307126A |
To provide an exhaust emission control structure of a motorcycle for purifying exhaust gas emitted from a multi-cylinder engine without deteriorating an engine output.In this exhaust structure, exhaust pipes 1 of the multi-cylinder engin...
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JP3456348B2 |
To easily eliminate ashes from a filter by providing pressure changing means by which pressure on the upstream or downstream side of the filter in an exhaust passage is rapidly changed when it is judged that the regeneration of the filte...
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JP3457187B2 |
To provide a variable intake device for a V-type multiple cylinder internal combustion engine, for providing a high volumetric efficiency and a high output torque over a wide rotational range. This device having right and left banks 4l, ...
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JP3452814B2 |
To fabricate an entire inertia supercharging intake manifold through injection molding of a synthetic resin when each of long branch pipes is curved to surround the circumference of a surge tank, the inertia supercharging intake manifold...
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JP3451589B2 |
To changeover two-stage tuning point increasing little layout space, increase the intake air quantity in a wide range of engine rotation areas and positively generate a tumble even in a low intake quantity operation area so as to improve...
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JP2003262120A |
To improve temperature rising performance of a manifold catalyser in an exhaust manifold for a four-cylinder engine by preventing exhaust interference and shortening the total length of an exhaust-pipe.Branches B1, B4 of No.1, No.4 outer...
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JP2003262130A |
To absorb effects by backlash, expansion and contraction in a thrust direction of a control valve caused by an operational state or environmental variation, and to avoid increment in sliding resistance of a link part under the effect of ...
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JP2003262165A |
To obtain optimum air intake efficiency in response to the operational status of an engine by simplifying the structure and reducing size and weight of an intake manifold with a variable intake mechanism, and providing a communication pa...
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JP2003526756A |
A shift drum (10), especially for use in an intake manifold arrangement for a multi-cylinder internal combustion engine, having an induction distributor, long individual suction pipes (27) that are arranged adjacent one another, and shor...
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JP3441614B2 |
To prevent the leakage of an intake air at the closing time of a valve by forming a valve seat to the downstream side of an intake flow slantingly and pivoting the one end of the upperstream side of a selector valve, in a device for open...
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JP3441366B2 |
To provide an intake device having high versatility, in which an air cleaner and resonators are collected on a compact manner for enabling arrangement near an internal combustion engine, while thereby decreasing necessity of design chang...
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JP3436766B2 |
PURPOSE: To prevent volumetric efficiency from lowering and reduce smoke by constituting a resonant inlet system with cylinders whose air inlet order does not continue and making the resonance tuning revolution of the resonant inlet syst...
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JP3436458B2 |
To improve a torque in a low and medium speed operation area without reducing an output in a high speed operation area and secure warm-up capability of a catalyst arranged on an exhaust passage with advantage. In an engine, a dual part i...
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JP3435612B2 |
PURPOSE: To relieve sudden starting of exhaust blow down so as to reduce exhaust pulsation noise by providing a cam by which the maximum value of acceleration in the normal direction on the valve opening side of an exhaust valve is reduc...
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JP2003522894A |
An internal combustion engine having a combustion chamber and a fuel delivery system for delivering fuel into the combustion chamber. The fuel delivery system includes a fuel entry proximate the combustion chamber and a combustion compre...
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JP3431767B2 |
To improve the distribution property of the intake air to each intake piping by providing an expansion part to be projected downward on a chamber bottom surface of the prescribed shape interposed in the middle of an intake manifold, and ...
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JP2003201847A |
To provide an intake device for an engine which enhance the engine torque by heightening the intake filling efficiency in the intermediate rotation range, compared with any conventional arrangement.The intake device of the engine is furn...
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JP3425901B2 |
To provide an exhaust method and device for an internal combustion engine capable of obtaining good rotation and power of the engine even at starting time and low/intermediate speed time. This exhaust method, connecting an expansion cham...
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JP3427396B2 |
PURPOSE: To improve scavenging property across a region from a low speed range to a high speed range in a high load range and prevent blowout of fuel in the low speed range by means of a relatively simple structure in an engine with a me...
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JP2003193921A |
To suppress disagreeable noises attributable to the difference in frequency of the pressure pulsation caused by the difference in passage length by setting the passage length from a throttle valve to a suction passage to be substantially...
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JP2003193919A |
To provide an inertia effect of intake air by lengthening a port length.In this intake device of an inclined engine, an engine cylinder- shaft line is tilted to one side from the vertical direction in a view from a crankshaft, an intake-...
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JP3421731B2 |
PURPOSE: To improve the thermal efficiency and fuel consumption of an engine by suppressing the pumping loss at the time of a low load to the minimum in the intake control device of the engine. CONSTITUTION: The separate second intake pa...
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JP3422033B2 |
PURPOSE: To prevent any decrease in a charging quantity so as to secure output, and also decrease in a driving loss of a supercharger so as to improve fuel consumption by varying an intake valve closing timing in response to an operation...
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JP2003176722A |
To provide an engine intake device in which swirl strength is variable, while suppressing increase of an engine cost and reduction of intake air charging efficiency.In this intake device, swirl ports 9b, 10b are connected to cylinders 5,...
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JP2003519748A |
The invention relates to a crankcase scavenged internal combustion engine (1) of two-stroke type, comprising a cylinder (2) with an inlet tube (10) for air/fuel mixture and a number of transfer ducts (20), a carburetor (12) connected to ...
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JP2003172215A |
To provide a suction device for an engine realizing high suction effect according to engine speed.A collector tank rotatably provided in a longitudinal direction center part and including a serge tank resonator 4 therein, an intake manif...
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JP2003172349A |
To provide an inexpensive bearing structure automatically aligning by absorbing inclination or a deviation between bearings, suppressing the leakage of air around a shaft, and having the small number of parts.A contacting surface of a be...
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JP3403948B2 |
To provide a variable intake device for a V-type multiple cylinder internal combustion engine, for providing a high volumetric efficiency and a high output torque over a wide rotational range. This device has right and left banks 4l, 4r ...
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JP3403947B2 |
To provide a compact intake manifold for a V type multicylinder internal combustion engine which can obtain high volmetric efficiency and output torque within a wide range and is easily attached. Bilateral banks 4l, 4r have ignition timi...
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JP3401047B2 |
PURPOSE: To provide an intake system of an engine capable of stratifying sufficiently a mixture at the low rotation speed to improve the ignition property and combustion quality effectively and improving sufficiently the intake filling e...
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JP2003120447A |
To provide an intake manifold for an internal combustion engine, capable of improving gastightness between a valve body and an intake air passage wall for surrounding the valve body by using synthetic resin as main material, restraining ...
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JP2003515026A |
The invention relates to a piston internal combustion engine whose cylinders (1) are each provided with at least one gas exhaust valve (6) and at least one gas intake valve (5), whereby the gas intake valve (5) is connected to a gas inta...
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JP3397873B2 |
PURPOSE: To sufficiently correspond to weight even when various kinds of apparatuses of an air intake system are joined to a ring surge tank by mutually and integrally joining neighbouring independent air intake pipes to each other, inte...
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JP2003113718A |
To suppress a deterioration in operability at idling caused by an individual difference between a pair of intake throttle valves.An intake passage control device for an engine comprises intake collectors 4 and 5 independent on a cylinder...
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JP2003514162A |
An air resonator system for a vehicle has a variable volume to reduce noise expected at both high and low speeds. In one enbodiment, a pair of necks communicate with chamber portions. A valve selectively blocks communication between the ...
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JP3395533B2 |
To secure a high particulate collecting rate by arranging a particulate collecting filter in each exhaust branch passage for communicating an exhaust collecting part with each cylinder, and communicating the respective exhaust branch pas...
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JP2003106227A |
To enlarge a volume of a surge tank without increasing a total height of an engine by utilizing a dead space at a lower part of the surge tank, and to improve the output at a high rotation side.In this intake device of the V-type engine ...
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JP2003097391A |
To provide a mixer of air and a fuel of an internal combustion engine in which the length of intake pipes of at least two cylinders can be independently changed.In the internal combustion engine including at least two throttle bodies hav...
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JP2003097521A |
To provide a part fitting structure capable of preventing a fall-out when fitting a projecting part of a part to a fitting recessed part of a member for fitting of the part.A lock part 1d is formed at a position separated from the projec...
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JP2003511619A |
A fluid directing assembly includes partitions which define fluid directing runners. The partitions extend from a first portion and include an engagement member extending therefrom. The engagement members extend from the partitions such ...
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JP2003083183A |
To easily and quickly change the substantial fluid passage sectional area of an internal passage without changing the design of a tubular body itself, when the substantial fluid passage sectional area of the internal passage of the tubul...
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JP3386227B2 |
PURPOSE: To eliminate rotation fluctuation of an engine and suppress enlarging of an engine by substantially equalizing intake amounts of cylinders in the cylinder group where intake passages of each cylinder of the same group joins each...
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JP2003074354A |
To provide a variable resonance muffler that is improved in vehicle mounting efficiency and noise reducing performance.A part of each end face of a communicating pipe 4 interconnecting an intake duct 2 and a resonator 3 is closed at the ...
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JP2003074355A |
To provide an exhaust pressure controller for an internal combustion engine that holds exhaust pressure constant via simple constitution.An exhaust pressure control valve 40 and 46 comprises an urging means 50 of an elastic member for ur...
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JP2003074398A |
To surely reduce the intake air pipe volume, and to improve idle stability when becoming an idle condition after sudden rotational reduction by sudden braking in an intake air device of an engine having an intake air variable valve capab...
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JP2003065149A |
To improve engine performance even in case that the structure of exhaust system is simplified by providing four cylinders of internal combustion engine with two exhaust gas passages and sharing one exhaust gas passage within every two cy...
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JP2003049723A |
To provide an intake system with a crank room ventilating function for an internal combustion engine, allowing the economical construction of a passage component part in the intake system for introducing crank room gas surely equally dis...
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JP2003049728A |
To provide an intake system for a multi-cylinder engine with independent intake passages for every cylinder having long low-speed passages and short high-speed passages for giving higher dynamic effects in low-speed and high-speed region...
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JP2003041940A |
To set intake outflow resistance in switching between a low speed side driving condition and a high speed side driving condition small for securing high intake charge efficiency. Branch intake passages 11-14 of this intake device 7 are p...
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JP2003041939A |
To further improve intake charge efficiency by resonance effect in a high speed side driving condition, and to prevent mutual interference between pressure pulsation of high speed intake passages and low speed intake passages. Branch int...
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