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WO/1989/002525A1 |
Idle control valve (10) for use with a throttle assembly of an internal combustion engine includes a valve body (22), and a valve spool (32) mounted within the valve body (22) so as to be rotatable in opposite directions about an axis (2...
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WO/1989/002519A1 |
An idling system for a multi-cylinder two-stroke engine as used in an outboard motor. Through a porting arrangement in the carburetor of at least one of the cylinders, the fuel supplied to that cylinder at idle and off-idle speed is redu...
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WO/1988/009434A1 |
A disadvantage of known devices for controlling idling in internal combustion engines is that full opening of a control cross-section is attained only after the maximum adjustment path is traversed, which requires a very high exciting cu...
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WO/1988/009435A1 |
A disadvantage for controlling idling in internal combustion engines is that when the adjusting motor is excited and the spring fails to operate, the device is fully opened and in consequence the internal combustion engine contains a dan...
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WO/1985/001549A1 |
A fuel metering and distribution system for an internal combustion engine comprising an open fuel reservoir (18) into which fuel is metered and a set of capillary tubes (20) each extending from the fuel reservoir (18) to a point in an in...
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WO/1984/003735A1 |
In said device associated with a rotary carburator, the passageways of an idle conduit (17a, 17b) and of an air conduit (23) connecting the suction channel (2) to the atmosphere are controlled by means of a regulating member (22) and as ...
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WO/1984/000194A1 |
An idle needle valve for a carburettor of an internal combustion engine having provision for controlling the position thereof with respect to the valve seat of the idle jet. The valve has a head stem element (5), a sleeve (2) and control...
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WO/1983/003876A1 |
A carburetion system for metering fuel to an internal combustion engine. Liquid fuel (26) is metered in a branched single metering system. Fuel is flowed through a metering orifice (36) in response to a pressure reduction that results fr...
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WO/1983/001813A1 |
To save fuel during engine deceleration, it has been proposed that the supply of fuel should be cut off. Such proposals have involved substantial redesign of the carburettor. The carburettor described comprises a throttle valve (14), an ...
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WO/1981/002913A1 |
A fuel-air metering system functioning according to precise flow and geometrical equations. An air throttle valve (1) and fuel valve (12a) are positively linked with the flow cross-sectional area of each valve proportional to that of the...
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WO/1981/001591A1 |
The regulator comprises a bypass valve which is parallel to a throttle arranged in a suction pipe and which is actuated by a servomotor. In order to adapt it to the different running states of the engine, the maximum opening cross sectio...
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WO/1981/000281A1 |
The process consist in effecting the carburated mixture in two phases: a premixture phase in a turbulence chamber (10) consisting in mixing the fuel flow Cr with a make-up flow Aa, small with respect to the idling airflow Ar with a view ...
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WO/1980/002179A1 |
Device which adjusts the combustion of engines during their operations in transitional phases, accelerations, decelerations and changes in the transmission ratios by reduction or suppression of the gas flow through the nozzles of the car...
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JP2024013649A |
An object of the present invention is to provide a fuel adjustment mechanism whose main body is compact and whose number of parts can be reduced to reduce assembly man-hours. A fuel adjustment mechanism (2) includes a limit cap (60) atta...
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JP2024013608A |
An object of the present invention is to provide a flow rate adjustment and restriction member that allows easy assembly of a needle valve and a limit cap. A flow rate adjustment and restriction member 3 includes a needle valve 30 and a ...
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JP7291614B2 |
A limiting cap is provided to restrict rotation of a needle valve and to be easily assembled onto the needle cap. The limiting cap assembled onto the needle valve screwed into an adjustment hole of a fuel adjuster includes a main body to...
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JP2022133978A |
To provide a carburetor free from occurrence of after-burn in stopping.In a carburetor in which a main jet 3 disposed in a bottom portion of a float chamber 2 for storing a fuel 1, and a main nozzle 5 disposed in an intake passage 4 in w...
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JP2020204289A |
To provide a carburetor capable of finely starting an engine with a simple structure without performing choke operation, a portable work machine equipped with that, and a method of controlling the carburetor.A carburetor (1) includes a b...
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JP6766992B2 |
An adjustment device for a carburetor adjustment valve includes a limit cap and a sleeve to prevent over-operation and destruction. The limit cap having first and second projecting parts formed in the insertion hole. The first projecting...
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JP6433768B2 |
A carburetor provided with a cap that prevents removal thereof by willful and forcible over-operation or destruction by a user, that is easily assembled without increasing the number of components, and that is a control means of an adjus...
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JP2017115737A |
To provide a carburetor capable of controlling a main air bleeding passage and a slow air bleeding passage, and simplifying a structure of a valve body.A carburetor 11 includes: a common passage 46; a main air bleeding passage 43 and slo...
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JP5925481B2 |
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JP5773631B2 |
An adjustment safeguard for a set screw that is rotatably held in a housing has a cap that is non-rotatably secured on the head of the set screw. The cap is received in a sleeve of the housing and surrounded with minimal radial play by t...
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JP2015059449A |
To provide a prevention structure against false adjustment of a fuel control valve in a carburetor in which false adjustment of the fuel control valve can be positively prevented.This invention relates to a false adjustment preventive st...
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JP5676992B2 |
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JP5459762B2 |
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JP2013199898A |
To provide an opening area setting device capable of effectively preventing the alteration of a screwing amount of an adjusting member.An opening area setting device 1 has a hole 8 of which one end is connected to a feeding channel 5 fee...
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JP5201410B2 |
To provide a portable engine tool that is environment friendly by improving fuel economy and improved in operability compared with a conventional portable engine tool. This engine tool has a throttle motor for rotating a throttle valve o...
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JP2012149644A |
To provide an internal combustion engine that can easily adjust the position of an idling stopper.The internal combustion engine includes a fuel supply device, an ignition device (8), a controller (22) to control a fuel supply rate (x) a...
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JP4993861B2 |
The cap has an adjustment prevention device (330) and a guiding nose. A portion of a set screw (200) is surrounded by the cap for positive locking. The screw is rotated relative to the cap to attach the cap in an installation position. T...
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JP4869799B2 |
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JP2011069360A |
To provide a carburetor capable of minutely distributing a small quantity of fuel, and while capable of providing a sufficiently large quantity, the maximum quantity, of fuel.At least one auxiliary fuel hole 48 is provided to be opened i...
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JP2011064076A |
To provide a carburetor excellently maintaining fuel flow rate characteristics of a slow system without raising cost in regard to a carburetor, of which horizontal part is extended sideward on the way of a slow fuel passage at a part on ...
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JP4602596B2 |
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JP2010270596A |
To surely avoid run-on and dieseling at an engine stop, and to improve engine starting performance in a carburetor equipped with a fuel cut mechanism.A governor 2A for a carburetor is connected to the carburetor 1 equipped with a main cu...
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JP4545962B2 |
An outboard motor includes an engine, a throttle valve connected to an inlet air silencer, and an intake manifold connected to a downstream portion of the throttle valve. A control valve is provided between a downstream portion of an int...
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JP4511537B2 |
A carburettor is connected into the inlet duct ( 48 ) of an internal combustion engine. The inlet duct is divided by a dividing wall ( 64 ) into a rich passage ( 42 ) and a lean passage ( 44 ). The carburettor includes a fuel chamber ( 4...
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JP4489011B2 |
An outboard motor has an internal combustion engine with a carburetor. The carburetor is designed to extend maintenance interval greatly by preventing or suppressing the deposition of solid matters in the gap between the intake passage a...
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JP2010127123A |
To prevent back bleed with a simple constitution, in a carburetor having a slow fuel passage branched off from a main fuel passage. In this carburetor of an engine, a slow air intake port for introducing air to a slow air bleed passage 9...
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JP4469740B2 |
An intake arrangement ( 1 ) for a two-stroke engine includes an intake channel ( 2 ) in which a throttle flap ( 3 ) is pivotally journalled with a throttle shaft ( 4 ). Downstream of the throttle flap ( 3 ), a partition wall ( 8 ) is mou...
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JP4464788B2 |
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JP4462682B2 |
An outboard motor powers a watercraft and comprises an engine mounted within an engine compartment. The engine comprises an induction system having an induction passage extending between an air intake box to a combustion chamber. A throt...
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JP4452940B2 |
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JP4452562B2 |
An internal combustion engine is provided, and has a throttle element mounted in the intake channel of the engine so as to be pivotable, via a throttle shaft, between an idling position and a full-load position. An abutment is fixedly co...
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JP4355727B2 |
The invention relates to an inlet device (1), for an internal combustion engine, comprising an inlet plenum (2), with at least one air inlet opening (3) and several outlet openings (4-7), connected by means of a provided mixing duct (8-1...
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JP2009138652A |
To further ensure prevention of fuel increase adjustment exceeding a factory set maximum value of a fuel adjusting valve by an end user.An adjustment restriction device is provided with a serration part 12c at a rear end part of the fuel...
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JP2009047034A |
To excellently maintain engine operation performance, by reducing a bubble quantity sent to the main jet downstream side, in a carburetor of an engine having a fuel passage communicating with a fuel reservoir on the main jet opening part...
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JP2009013879A |
To easily perform accurate altitude correction in a carburetor of an engine by allowing to realize a good air-fuel ratio according to the altitude where the engine is used with a simple structure.The carburetor 1A is equipped with a main...
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JP4208108B2 |
An outboard motor comprises an engine mounted within an engine compartment. The engine comprises an induction system having an induction passage extending between an air intake box to a combustion chamber. A throttle valve is positioned ...
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JP4206902B2 |
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