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JP2001271667A |
To eliminate gasoline 4 inside a float chamber 3 and thereby prevent gasoline from having room to make into gum within the float chamber 3, even when an engine is not used over a long period, after the engine is stopped. When gasoline op...
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JP2001263171A |
To eliminate an inconvenience causing an engine stall and an idle failure by inflow and accumulation of fuel by an attitude change at the time of a normal driving in an auxiliary passage for supplying air-fuel mixture for starting and ou...
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JP2001263169A |
To eliminate back clearance by screwing an incomplete synthetic resin screw shaft part of a fuel regulating needle valve into a screw hole of a carburetor body and to provide airtightness in the vicinity of the screwing part by press-fit...
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JP2001263166A |
To screw a fuel regulating needle valve into a resin retainer and a metallic collar press-fitted into a cylinder part of a carburetor body by canceling working of a screw hole for the carburetor main body.A cylinder part 8 with reduced i...
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JP2001263170A |
To eliminate leakage of air and fuel by making closing of an opening/ closing valve for simultaneously opening/closing a throttle valve bypass of an intake passage and a fuel guide path complete, in a device for supplying starting fuel b...
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JP2001263168A |
To shield a fuel regulating needle valve from vibration of a carburetor body, to suppress swinging of a tip needle due to backlash of a screwing part of the fuel regulating needle valve, to prevent air leakage from a gap of the screwing ...
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JP2001263175A |
To prevent air bubbles from accumulating in a valve chest by arranging a bushing at a separated portion from the valve chest.A stepped hole 8 reduced in inside diameter successively inward from an end wall surface 9a, a stepped shaft hol...
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JP2001263167A |
To mitigate vibration of a carburetor body to a fuel regulating needle valve receives, to suppress deflection of a tip needle and to hold the tip needle concentrically with an outlet passage.A stepped hole 9 with reduced inside diameter ...
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JP2001241360A |
To provide a fuel injection system for a two-stroke engine discharging little hydrocarbon gas and having the improved economical efficiency of fuel.The fuel injection system having a main air introducing passage and a different injection...
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JP2001234812A |
To eliminate any variance by covering a circumferential wall portion of at least a head portion of a fuel regulating needle valve by a synthetic resin, and forming a knurl thereon at the same time.In a carburetor of an internal combustio...
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JP2001214808A |
To enable adjusting a pilot screw by a tool generally on the market, and to mechanically restrict the adjusting width thereof.An adjusted groove P6 is provided on a rear end surface P5 of a pilot screw P. A restricting member 6 comprises...
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JP2001214807A |
To provide a fuel adjusting system for a carburetor eliminating a bad influence on fuel amount caused by changes of a tip needle to a fuel passage of the carburetor main body, especially the eccentricity of the tip needle.A cylindrical p...
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JP2001214775A |
To ensure the start and acceleration of an internal combustion engine without manually regulating a starter flap in a wide temperature range.A bypass passage 30 is branched from this side of the starter flap 13 and opened to a mixture fl...
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JP2001207924A |
To provide an air intake system capable of improving noise without deforming or changing a structure.This air intake system constitutes a characteristic feature of including an air intake duct formed so that air inflows, a resonator prov...
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JP2001200759A |
To maintain stability of a fuel amount, by interrupting the fuel control needle valve from vibration of a carburetor main unit, suppressing shaking of a tip end needle by chattering in a screwed part of the fuel control needle valve, and...
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JP2001193611A |
To prevent an idle speed control device capable of reducing noise caused by occurrence of a turbulent flow by preventing the turbulent flow from occurring right after air passes the valve seat part of a valve body, in a by-pass passage b...
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JP3181587B2 |
PCT No. PCT/DE91/00893 Sec. 371 Date Jul. 21, 1992 Sec. 102(e) Date Jul. 21, 1992 PCT Filed Nov. 15, 1991 PCT Pub. No. WO92/10662 PCT Pub. Date Jun. 25, 1992.A control device for the control of an opening cross-sectional area of a flow d...
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JP3177815B2 |
PURPOSE: To simplify fine adjustment operation and a structure of an alteration preventive device of a fuel restricting bolt. CONSTITUTION: A bottomed cylindrical protective cap 5 is put on and fitted to a fuel restricting bolt 1, and a ...
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JP2001159383A |
To solve four problems in a conventional carburetor for a spark- ignition internal combustion engine: (1) bleed air lead-in instability, (2) clogging of dust in fuel, (3) the necessity of repeated work in an air-fuel ratio characteristic...
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JP3173519B2 |
PURPOSE: To reduce the CO value in emission by increasing the step of a flow control valve after a predetermined time elapses after recovery of fuel cut-off during deceleration so as to shorten the time by which the air-fuel ratio become...
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JP2001132544A |
To form a carburetor not having one of fuel regulating needle valves in a high speed system and a low speed system in the same constitution as a carburetor having fuel regulating needle valves in the high speed system and the low speed s...
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JP3165352B2 |
To prevent freezing in a metering section due to waterdrops in an idling speed controller, and to enhance the degree of freedom in the layout of an engine roan as well as to make improvements in reliability, in this air flow control syst...
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JP2001115896A |
To provide a fuel quantity limiting device having a cap mounted on the head part of a fuel regulation needle valve so that the fuel regulation needle valve set during delivery to a factory is not regulated in a fuel increasing direction....
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JP2001099004A |
To provide a throw adjust screw of a carburetor which can adjust an air amount for low speed or air-fuel mixture amount for low speed with high accuracy and shows excellent reproducibility. An adjust passage B formed on a carburetor main...
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JP2001090609A |
To provide a fuel quantity limiting device having a cap attached on a head part of a fuel adjusting needle valve so as not to adjust the fuel adjusting needle valve set at the time of shipment in a direction for increasing fuel. Fuel adj...
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JP2001082251A |
To assure a reliable start of a combustion engine by a simple operation of a diaphragm carburetor for the combustion engine used as a drive unit for a manual operation type working machine such as a power chain saw. A displacement piston...
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JP2001065408A |
To give a function by which a re-adjustment is carried out easily and accurately to a cap for restricting the rotation of an adjusting valve. In this device, a claw piece 37 is projected to a cap 31, mounted on an adjusting valve 11, whi...
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JP2001027155A |
To immediately stop an engine at the stopping operation of the engine.This engine has a throttle valve 8 placed in a mixing body 4 of a carburetor 2, and a slow port 26 and an idle discharge hole 27 of a slow system fuel supply passage 2...
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JP2000303907A |
To provide a carburetor with a fuel feed function for acceleration being simple in structure not using an acceleration pump. An air passage 35 crossing a throttle valve stem 8 is connected to a throw port chamber 28 and an air introducti...
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JP2000512711A |
An improved fuel air mixture apparatus which enhances the degree of mixing of fuel with air. The fuel-air mixture device includes a primary air passage having an inlet, an adjustable throttle and an outlet; a secondary air passage having...
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JP3060897B2 |
An air flow control device of an engine comprising an air flow control valve arranged in the intake passage and actuated by the vacuum operated diaphragm type drive apparatus. At the cranking of the engine, the air flow control valve is ...
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JP2000186621A |
To prevent the fuel regulating valve of a carburetor from being manipulated freely by the driver of an engine after the fuel regulating valve of the carburetor is adjusted at the time of shipping from a factory. A screw hole 25a and a fu...
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JP2000186622A |
To prevent the change of fuel flow in the case of mounting an operation limiting cover on the head part of a fuel regulating valve and the vibration of an engine. A stepped cylindrical part 29 for fitting a locking ring 9, a cylindrical ...
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JP2000130261A |
To provide a control system for the idling engine speed of a multiple cylinder internal combustion engine, capable of stably controlling the idling engine speed by one idling engine speed controller even if adopting a structure provided ...
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JP2000097110A |
To obtain a low speed fuel system device for carburetor which can reduce the manufacturing cost, as well as can feed a low speed fuel (a low speed mixture) into a suction passage stably.The longitudinal axial core line X-X of a low speed...
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JP2000087805A |
To provide a fuel passage structure in which construction is simplified that the adjustment of a fuel amount by a fuel regulating needle valve in an idle operating area does not exert influence on a high speed operating area, and mechani...
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JP2000073871A |
To prevent the generation of an eddy current and prevent the generation of a foreign sound in the sectional area enlarged part of a fuel passage by providing a projection part for moderating the sudden extension of the fuel passage secti...
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JP2000073865A |
To provide a power fuel device of a sliding valve type caburettor which can improve supplying responsiveness of the power fuel with respect to negative pressure fluctuation in an intake passage and linearity of the power fuel. Power fuel...
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JP3007153B2 |
PCT No. PCT/DE91/00898 Sec. 371 Date Aug. 5, 1992 Sec. 102(e) Date Aug. 5, 1992 PCT Filed Nov. 16, 1991 PCT Pub. No. WO92/10663 PCT Pub. Date Jun. 25, 1992.A rotary actuator for setting the rotation angle of control elements, especially ...
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JP2000027704A |
To provide a float type carburetor for a four cycle or two cycle internal combustion engine which is improved in prevention fuel leakage and fuel clogging caused by malfunction of a float and a needle valve, constant air-fuel ratio under...
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JP2602659Y2 |
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JP2000008958A |
To provide a carburetor in which an idling speed adjust is concise and the air fuel ratio of a mixture supplied to an engine is stable. This carburetor 10 has a nozzle for idling 50 and a main nozzle 52 and an idling speed adjust screw a...
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JP2995203B2 |
To stably operated an engine by smoothly shifting from low speed fuel to main fuel in a system for supplying low speed fuel from a primary chamber of a regulator and supplying main fuel from a secondary chamber. A by-pass passage 18 reac...
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JPH11351065A |
To prevent such a variation in fuel discharge as caused by a mounting operation of an operation limiting cover on the head of a fuel control valve or by an engine vibration. A carburetor body 20 is formed with a tapped hole 25a and a fue...
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JP2983885B2 |
PURPOSE: To provide an opening restricting device for fuel adjusting valve, which can be handled easily and adjust the fuel quantity accurately. CONSTITUTION: A large diametric stepped cylindrical part 29 is formed at the base end of a t...
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JP2968707B2 |
To deal with exhaust gas adjustment so as to suppress a fuel quantity from being increased to a specific value or more in a carburetor equipped with a cylindrical throttle valve, by providing an air passage by which the throttle hole of ...
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JPH11287156A |
To prevent variation in a fuel flow rate due to installation of an action restricting lid to the head part of a fuel control valve or vibration of an engine. A screw hole 25a extending inward in order and a fuel passage hole 23a with a d...
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JP2600498Y2 |
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JPH11280556A |
To provide a cabureter previously preventing a fuel unavoidably remained from closing a slow caburetion system after an excess fuel in a float chamber is drained. A venturi portion 2 is provided on an intake pipe 1, a float chamber 5 is ...
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JP2961640B2 |
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