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Patent Searching and Data


Matches 251 - 300 out of 2,883

Document Document Title
JP2001164995
To provide a carburettor starter device of such a structure that a pressurized air is applied to a fuel to extrude it to a suction passage for supplying a necessary quantity of fuel for the starting, whereby it is possible to start the e...  
JP2001159371
To rapidly decelerate an engine without generating an engine stall by rapidly closing a throttle valve up to the specified opening, while gradually closing the throttle valve at the specified opening or less in the closing action of the ...  
JP3196084
PURPOSE: To provide a carburetor fuel quantity increasing device inhibiting mixture from becoming lean in an engine, during high-opening low-speed operation and during accelerating operation and making the mixture rich positively in a sp...  
JP3196085
PURPOSE: To restrain the thinning of air-fuel mixture by opening a fuel quantity increase passage through actuation of a control valve by a control signal from a control circuit within the range of a determined vehicle speed and also wit...  
JP2001153049
To provide a diaphragm type pump capable of preventing change in fuel discharge characteristics by always harmonizing the manipulated variable of a manipulating member with the stroke of a diaphragm valve.In this diaphragm type accelerat...  
JP3188981
PURPOSE: To carry out injection supply into an intake passage and restrain the thinning of mixture by opening a fuel quantity increase passage by actuating a control valve by means of a control signal within the range of an engine rotati...  
JP2001123841
To provide an accelerator for a two-stroke engine having an accelerating pump made to be driven by the pressure of a scavenging air passage. A stratified scavenging carburetor has a rotary throttle valve 6 and a scavenging valve, associa...  
JP2001099006
To inexpensively provide an acceleration device for a carburetor which can supply acceleration fuel stably for a long time. A cam lever 8 having a cam surface 8A is fixed to a throttle valve operation shaft 4A between a throttle lever 5 ...  
JP2001099004
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...  
JP2001099009
To improve working equipment having an internal combustion engine so as to reduce fuel consumption, thermal load and mechanical load of the internal combustion engine by a simple means. A hand carry type working equipment is driven by an...  
JP2001099007
To always stabilize a discharge amount of acceleration fuel in a plunger type acceleration pump device without being influenced by manufacturing error of interlocking mechanisms between a throttle valve and a pump plunger. A back stopper...  
JP2001090610
To prevent fuel accumulated in an atmospheric chamber of a negative pressure actuator from flowing in a bystarter in starting an engine. An inlet passage 4 and an outlet passage 10 in a lateral direction which are vertical to an intake p...  
JP3173519
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...  
JP2001082252
To provide a constant vacuum slide throttle valve type carburetor having a simple constitution, a reduced manufacturing cost, a slide throttle calve movement swift and excellent in acceleration performance, and a high air suction efficie...  
JP2001082253
To provide a constant vacuum slide throttle valve type carburetor having a simple constitution, a reduced manufacturing cost, a slide throttle valve movement swift and excellent in acceleration performance, and a high air suction efficie...  
JP2001073877
To stabilize combustion condition, and suppress fluctuation of engine rotating speed by arranging an opening/closing valve on the way of a fuel passage, closing the opening/closing valve at least between a low speed region and an interme...  
JP3165726
PURPOSE: To provide a fuel supply device for an engine which can generate sufficient venturi negative pressure even in an operation area of a small intake amount, dispense with a passage for forcibly sending fuel into a venturi passage, ...  
JP3158304
PURPOSE: To restrain the thinning of air-fuel mixture by opening a fuel quantity increase passage by actuating a control valve by means of a control signal with a throttle valve opening being more than a fixed opening and also within the...  
JP3159760
PURPOSE: To provide a desired pulsation effect and sufficient acceleration by detecting an accelerating condition of a car body in a high speed region, and changing a preset value transferred to the lower speed side in accordance with la...  
JP3154109
PURPOSE: To restrain the thinning of mixture at the time of the middle and high opening operation of an engine by opening a fuel quantity increase passage by actuating a control valve within the range of determined rotation and also with...  
JP3153930
PURPOSE: To inhibit mixture from becoming lean in an engine, during high-opening low-speed operation and during accelerating operation and positively make the mixture rich in a specific operating region where the mixture becomes lean, in...  
JP2001012299
To prevent a lean mixture at low speed operating time, when a carburetor temperature rises, while fuel flow amount characteristics are stabilized, by quickly sucking vaporized fuel generated in a fuel chamber to an intake passage and sta...  
JP2001012300
To provide an accelerating/decelerating device which can improve in a freedom degree in design and reduce in manufacturing cost while simplifying a passage in a main air system of a carburetor.A switching valve device 40 comprises a seal...  
JP2001012301
To increase the degree of freedom of design and to reduce a manufacturing cost by simplifying passages of a main air system of each carburetor constituting a compound carburetor.A selection valve 40 comprises: a sealed valve chamber 42; ...  
JP2000352358
To realize a remote control of a throttle valve by connecting an electromagnetic actuator to the throttle valve.A piston throttle valve 48 is inserted moveably in a vertical direction into a cylindrical valve chamber 57 that runs across ...  
JP3139592
PURPOSE: To feed a rich mixture while continuing lean operation, and to judge the activated condition of an O2 sensor without using a dedicated valve. CONSTITUTION: A fuel gas route 23 is connected in the way to an intake route 21 commun...  
JP2000320415
To provide a prime mover having low fuel consumption and reducing the harmful exhaust gas amount by increasing the speed of the suction flow in a suction pipe, especially at idling time and low.to medium rotation times, to carry out the ...  
JP2000303907
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...  
JP2000297703
To provide a fuel jet supporting structure of a carburetor in which the inlet and outlet sides of an air passage hole are sealed more completely. In a fuel passage for introducing to the intake passage 9 of a carburetor body 2 fuel in a ...  
JP2000282954
To prevent engine idling from becoming unstable with dust clogging by supplying a clean bleed air to the low-speed fuel system of a carburettor. A secondary air cleaner A2 is installed consolidatedly in the upper part of a clean chamber ...  
JP2000265906
To obtain an acceleration device having an acceleration pump, which is simple in structure, excellent in liquid tightness, has freedom in arrangement space, stability in operation. An acceleration pump 21 is a negative diaphragm type whi...  
JP2000257508
To provide an accelerator having an acceleration pump and having a simple structure, excellent liquid-tightness, and a large degree of freedom of an installation place. A check valve 13 which is closed toward a restriction 12 for regulat...  
JP2000240475
To simplify assembly, mounting, and calibration, in a throttle valve assembly for driving a motor. A throttle valve assembly 10 is provided with a DC motor assembled as a subassembly 14 and calibrated, and after the subassembly 14 is mou...  
JP2000220527
To prevent occurrence of excessive rich state of air-fuel mixture through sensitiveness of an acceleration pump even when a driver snap-operates a throttle valve lever. Inside a body 16 of this evaporator, a cam is formed on a throttle v...  
JP2000220525
To improve restartability in cold starting and hot restarting of an engine. A starting fuel passage 3 is opened to a bottom 2B of a starting valve chamber 2, while a starting air passage 4 and a starting air-fuel mixture passage 5 are op...  
JP2000213432
To improve accelerating characteristic by discharging vapor generated inside a pump chamber to atmosphere without residing inside the pump chamber and supplying accurate accelerating fuel. A cylinder chamber 4 is divided into a pump cham...  
JP2000204970
To highly precisely drive for opening and closing two throttle valve, respectively arranged in two systems of intake passages, by interlocking with each other through simple structure. A valve stem 14 is rotatably supported in a manner t...  
JP2000192851
To improve acceleration property of an engine by improving a phenomenon of fuel becoming temporarily excessively lean in accelerating a membrane carburetor. A membrane 25A divides a constant-pressure fuel chamber 26 from an atmospheric a...  
JP2000186625
To stabilize a discharge rate by opening a pulsation pressure taking- out port to a position upper than a throttle hole of a rotary throttle valve at the time of idling and to a position of a downstream side from the rotary throttle valv...  
JP2000186626
To weaken the valve closing force of a throttle valve at a predetermined opening or less at the time of closing action of the throttle valve, and to certainly slowly close the throttle valve even when the throttle valve is closed from a ...  
JP2000186623
To provide a rotary throttle valve type diaphragm carburetor equipped with an acceleration pump arranged in the upper outer end part of a carburetor body and directly driven by a throttle valve lever. A throttle valve having a throttle h...  
JP2000179405
To appropriately feed fuel for acceleration even in a case of sequentially accelerating and decelerating an engine by communicating an acceleration fuel suction passage opened to a fixed liquid face of a float chamber, an acceleration fu...  
JP2000080959
To set the movement of the tip portion of a forcible operation lever driven by a throttle valve operation lever identical to that of the tip portion of a follower lever engaged with a sliding throttle valve. A negative pressure chamber 1...  
JP2000073865
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...  
JP2000073902
To prevent air accumulation in a fuel piping between a fuel pump and a carburetor. This system is equipped with a four-cycle engine having a longitudinal crank shaft 21 and plural transverse cylinders, carburetors 30a-30d arranged in res...  
JP2000064871
To improve drivability at shift operation time by surely preventing rapid starting of a vehicle and increasing of a shift shock due to load increase at the shift operation time from range N to a range D. A device comprises a throttle act...  
JP2000054880
To provide an intake A/F controller for an outboard engine, by which an exhaust gas A/F can be accurately controlled to a required target vague, whether in the case that an acceptable range of a purifying rate of a catalytic converter is...  
JP2000054930
To improve injection characteristic of fuel, and realize good exhaustion and noise characteristics. A solenoid valve 25 for controlling release of fuel pressure in a pressure chamber 22, into which part of fuel from an accumulator for ac...  
JP2000045871
To simplify the structure of a diaphragm type carburetor so as to satisfactorily adjust an inlet value. In a diaphragm carburetor for an internal combustion engine, a regulating chamber 15 filled therein with fuel can be connected to a f...  
JP2000045874
To provide a ram air supercharged type intake device which can enhance the responsiveness of an engine even though it has a CY type carburetor. A carburetor 11 comprises an atmospheric chamber 17a communicated with the atmosphere, and a ...  

Matches 251 - 300 out of 2,883