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JP2005226590A |
To stabilize the quantity of fuel delivered to an intake passage by preventing fuel vapor from being delivered from a fixed fuel chamber of a carburetor to an intake passage, and keeping constant the fuel pressure of the fixed fuel chamb...
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JP3687071B2 |
To provide a carburetor for a crankcase scavenging type two-stroke engine that offers an air-fuel ratio corresponding to an engine load. The carburetor is used with a crankcase scavenging type two- stroke engine where an engine intake du...
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JP3685195B2 |
To improve a stroke quantity, a seat height, and a storage box capacity of a reaction unit by making an entire unit swing type adopting a 4-cycle engine compact. A storage box 8 is installed in a rear body 7 below a seat 5. The storage b...
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JP3668650B2 |
To improve output of an engine, prevent overheat of an ignition, and reduce generation of HC, CO by increasing a velocity of a mixture flow, and preventing excessive fuel supply in the upstream cylinder and shortage of fuel in the downst...
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JP2005163778A |
To provide a cam part for turning a turn valve element being a molded product and displacing it in the direction of axial line inside a carburetor main body.A rib 3b in the radial direction for preventing molding distortion of a recessed...
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JP2005155392A |
To provide a start device for a diaphragm type carburetor preventing air from mixing in fuel and having a start pump arranged at a user-friendly position separate from a carburetor in the suction type start pump.A suction passage 12 exte...
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JP2005146980A |
To improve durability of a throttle valve supporting shaft dust-proof seal for a turning throttle valve type carburetor.The dust-proof seal 31 protects a clearance between a supporting shaft 24 of a turning valve body 3 and a shaft suppo...
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JP3654397B2 |
To enable vaporized fuel IN a constant pressure fuel chamber to normally flow to an intake passage little by little together with fuel irrespective of the posture of an engine, thereby preventing much vaporized fuel from remaining in the...
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JP2005106060A |
To provide a carburetor device which has a simple constitution, and is easily manufactured.The carburetor device has an intake channel (22), which is partitioned by a partition wall (11) into an air channel (8) and a mixture channel (21)...
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JP2005061289A |
To provide a carburetor whose low speed system is independent from a main system, wherein connection of fuel is smooth, dispersion in fuel flow rate is low, and high output is materialized.A flow rate control mechanism 21 is provided to ...
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JP2005042729A |
To provide an air supply device (a carburetor), dispensing with a link mechanism to achieve simplification, and preventing stop of an engine due to air-fuel mixture of dense fuel and air in idling and decelerating operation state.This ai...
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JP2005036758A |
To perform operations starting at no-load to high-load in a 2-cylinder engine in which an air-fuel mixture is individually supplied from a duplex carburetor into cylinders.This 2-cylinder engine is formed in such a manner that tow intake...
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JP2005002887A |
To optimize setting of a fuel discharge amount in a low opening range of a rotary throttle valve, and to widen a range of engine characteristics.A rotary throttle valve type carburetor 1 comprises: an intake passage 3; a rotary throttle ...
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JP2004353512A |
To cope with a variety of engines with different positional relation between a mixture feeding port and a scavenging air feeding port.An air passage 33 forming a part of an air passage 32 for scavenging air is formed in a carburetor body...
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JP2004353515A |
To prevent the compactness of a general carburetor from being impaired by disposing an intake passage in which an air valve forming a part of an air passage supplying scavenging air to an engine and interlocked with a throttle valve clos...
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JP3594873B2 |
To lower an emission temperature while maintaining a high output by positioning an intersection point X in an optimum intersection point P or its vicinity and to set a proper concentration of a gasoline mixture fed to a cylinder S3 in th...
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JP2004332720A |
To solve a problem that air is trapped in a fuel feed pipe to a carburetor from a carburetor passage and a fuel tank on the upstream side of a diaphragm, and an engine is hardly started when no fuel is present in the engine using a diaph...
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JP2004308650A |
To provide a carburetor that delivers all of the fuel for delivery to the engine through a single nozzle, has improved idle, normal operation, acceleration and deceleration characteristics, has improved all positioning, enables use of an...
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JP2004308544A |
To cope with an mounting environment of a carburetor only by assembly of a throttle valve, without producing the carburetor on a case-by-case basis depending on space in which an interlocking mechanism of the carburetor for various types...
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JP2004293361A |
To successfully maintain an engine running condition by avoiding the temperature rising in a carburetor.A combustion chamber 15a is formed in a cylinder head 15 of an engine 25 mounted on a vehicle. An suction port 15b and an exhaust por...
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JP2004293360A |
To improve the waterproofing and the dust resistance for a carburetor of an air-fuel mixture feeding device and to reduce the cost of the air-fuel mixture feeding device.An engine 25 is provided with the air-fuel mixture feeding device 2...
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JP2004293372A |
To effectively catch vapor and rapidly suck and deliver vapor to an intake passage by using characteristics that vapor moves round along the circumferential wall section of a fuel chamber and grows.Two or more vapor bleeding grooves 16 e...
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JP2004278328A |
To prevent breakage of a diaphragm for measurement of a diaphragm carburetor in which starting fuel is fed to an intake passage via a constant fuel chamber by displacing the diaphragm for measurement and forcibly opening a fuel inlet val...
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JP3544894B2 |
To enable an unskilled person to simply adapt the mixture for a dominant operating condition. A carburetor for an internal combustion engine comprises a suction passage 2 in a carburetor casing 1, a fuel passage 14 connected to a regulat...
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JP3546174B2 |
To provide a fuel metering device for a spark ignition engine requiring no detaching/attaching of a governor lever 3 from/to an engine wall 1 and no readjusting of an output restriction bolt 8 because of no displacement in an assembled s...
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JP3544241B2 |
PURPOSE: To connect the intake pipe of every carburetor formed unitedly of synthetic resin to the carburetor with excellent sealing ability. CONSTITUTION: One sheet of plate 23 is interposed between four units of carburetors 18 and the f...
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JP2004144044A |
To provide a layered scavenging mechanism for a two-cycle engine which is fixed to a carburetor component between connecting parts between a plurality of air passages installed in an air supplier for scavenging.There are provided a carbu...
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JP2004132215A |
To perform appropriate adjusting with less revolution number of a regulating valve in an adjusting device for adjusting a fuel flow rate by inserting a needle-type valve element of the regulating valve into a throttle hole of a fuel pass...
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JP2004124916A |
To improve durability by improving wear resistance, in a carburetor wherein a sliding valve made of aluminium material is fitted to a carburetor main body having an intake passage and cast and molded from the aluminium material so as to ...
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JP2004100638A |
To provide an accelerator for a carburator having a simple structure without using linkage which is not drastically increased in size, for interlocking with a throttle valve and operating a piston type accelerator pump.A cam 33 which is ...
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JP3513425B2 |
To suppress the sticking retension of a mixture in a cylinder body to improve combustion efficiency by forming a coating layer formed at an inner peripheral surface and a joint face of a cylinder body constituting an intake manifold, usi...
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JP2004084649A |
To achieve smooth operation of an engine by a flat diaphragm and a flow control valve lever in fuel controlling for a carburetor used in an internal combustion engine.This fuel controlling system for the carburetor used in the internal c...
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JP2004052702A |
To provide a rotary throttle valve type carburetor with a fuel increasing mechanism easily operated, easily readjustable and capable of lifting a throttle valve lever in an idle position to supply an optimum highly-rich mixture.A lifting...
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JP2004044584A |
To provide an assembly for preventing an unprepared movement of a fuel calibration setting needle.This assembly adjusts the air fuel ratio of an air-fuel mixture for an engine, and has a main body and a needle valve element. The main bod...
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JP2004044394A |
To provide a mounting structure of a coupling member capable of easily connecting an engine side coupling part to a carburetter side coupling part through a coupling member without overlapping clamp bands with each other.The coupling mem...
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JP3496068B2 |
PURPOSE: To reliably realize the starting of an engine at a value lower than the safe number of revolutions of an engine even by an unskilled operator and subsequent warming-up operation. CONSTITUTION: A carburetor comprises a bystarter ...
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JP2004028012A |
To supply a lean air-fuel mixture satisfying both of the desired performance of an engine in a high opening area of a throttle valve, and the conformance of the amount of carbon monoxide to the exhaust emission control.A back-pressure ch...
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JP2004019483A |
To stably maintain a function of accurately controlling fuel flow rate by moving a throttle valve in a predetermined axis direction without receiving influence by engine heat with a cam mechanism disposed outside a carburetor body having...
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JP3487909B2 |
PURPOSE: To provide a starting fuel feeding device for a carburetor which is disposed in a limited space as in a portable working machine and small and easy to operate. CONSTITUTION: A starting shaft 21 paralleling a throttle valve stem ...
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JP2003343288A |
To provide a sealing bearing assembly for a butterfly control valve. The sealing bearing assembly comprises bushings 62, 64 filled in the counterbores 56, 58 of a cylindrical holes 52 for receiving the rotary shaft of the control valve. ...
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JP2003343357A |
To properly adjust idle fuel flow in a carburetor without requiring high machining accuracy for a nozzle hole and the like, in the carburetor controlling fuel flow through the adjustment of the open area of the nozzle hole such that a me...
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JP2003343358A |
To reduce fuel consumption and stabilize engine operation regarding a carburetor of a single fuel system. The carburetor is provided with an electric fuel supply means C which shuts off or feeds fuel to an intake passage 2 by opening or ...
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JP2003343359A |
To stably warm up an engine and operate the engine at a desired engine speed by supplying the proper amount of fuel at the start of the engine or in a specific speed range. A first fuel system F1 is provided in which fuel in a constant f...
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JP2003328869A |
To provide a combustion auxiliary device for an internal combustion engine, improving combustion efficiency by supplementing negative charge ions.A negative charge ion generator 20 is installed in front of a carburetor or a injection pum...
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JP3464969B2 |
To facilitate maintenance of mounting/demounting work, cleaning and replacement of an element, etc., in an air cleaner for an internal combustion engine. An air cleaner case 14 is constituted by a structure divided into three parts of a ...
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JP2003314370A |
To retain a prescribed opening/closing action by suppressing to the minimum deterioration of opening/closing characteristics to be caused by swelling of an elastic polymer valve piece provided in a valve element of an opening/ closing va...
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JP3462771B2 |
To positively prevent the stay of liquefied fuel to thereby control the generation of incompletely burnt or unburnt gas. An engine is provided with an insulator 120 which has the axial ends opposed to an intake port 12A1 having an intake...
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JP2003262159A |
To provide an idle fuel supply device of a carburetor, wherein an air passage connecting an upstream portion of a throttle valve of an intake path with a downstream portion is provided to a carburetor body, and fuel in a fuel reservoir c...
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JP2003262160A |
To make an exhaust condition and controllability of an engine good by easily and precisely correcting errors of a fuel flow rate due to dispersion of components of a carburetor.An emission passage 23 of a fuel pump 15 is connected with a...
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JP2003247466A |
To lessen a load applied to an engine for drawing in a mixture and to reduce concentration of air supplied to a combustion chamber of the engine.An engine control mechanism uses an air conditioner 52 for conditioning air in a cabin and a...
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