192results about "Carburettors" patented technology

The present invention generally relates to a method and device that enhances fuel atomization in a carburetor or a similar apparatus. Specifically, it introduces a unidirectional fuel nozzle that is designed to improve the atomization of fuel injected into the fuel-air mixing chamber of a combustion engine. The fuel nozzle comprises a cylindrical body with a plurality of perforations on one half and a plurality of dimples on the outer surface of the other half. Each dimple is designed with an air turbulator, which creates turbulence on the surface of the fuel nozzle in response to the air pressure, delaying the separation of the air from the surface of the fuel nozzle. As a result, fuel droplets break down further, improving fuel atomization. This enhances the combustion efficiency of the engine by allowing the fuel to mix with air more effectively.

The present invention generally relates to a method and device that enhances fuel atomization in a carburetor or a similar apparatus. Specifically, it introduces a unidirectional fuel nozzle that is designed to improve the atomization of fuel injected into the fuel-air mixing chamber of a combustion engine. The fuel nozzle comprises a cylindrical body with a plurality of perforations on one half and a plurality of dimples on the outer surface of the other half. Each dimple is designed with an air turbulator, which creates turbulence on the surface of the fuel nozzle in response to the air pressure, delaying the separation of the air from the surface of the fuel nozzle. As a result, fuel droplets break down further, improving fuel atomization. This enhances the combustion efficiency of the engine by allowing the fuel to mix with air more effectively.

The utility model relates to a carburetor capable of improving starting effect, which comprises a carburetor body, a diaphragm pump is arranged on the outer side portion of the carburetor body, an upper oil port is arranged on the diaphragm pump, an oil inlet hole channel communicated with the upper oil port is arranged on the carburetor body, and the oil inlet hole channel is communicated with an oil cavity in the diaphragm pump. A manual oil recharging pump is arranged on the outer side portion of the carburetor body, an oil inlet of the manual oil recharging pump is communicated with the oil inlet hole channel, and an oil outlet of the manual oil recharging pump is communicated with an oil cavity in the diaphragm pump. The carburetor with the improved starting effect is novel in structure and reasonable in design, on the basis of an original diaphragm pump, the manual oil supplementing pump is connected in parallel, when an engine is started, the oiling speed can be increased by rapidly pressing the manual oil supplementing pump, the starting speed of the engine is greatly increased, and the starting effect is good.

The present disclosure relates to an air intake module (100) which includes a first sensor (10) for continuously monitoring air temperature and pressure at the intake manifold and generating a first sensed signal. The module comprises a float chamber (22) supplying fuel to a housing (12), which includes a first channel (13) with an air inlet (14) and an outlet (15) delivering an air-fuel mixture to the engine. A second channel (105) and a third channel (107) within the housing facilitate air passage. A throttle slide (51), positioned within the first channel, regulates airflow. A second sensor (108) detects the throttle slide (51) position and generates a second sensed signal. A control unit (134) processes sensed signals and generates an actuating signal. An IACV (146) with a plunger (111) adjusts airflow between the second channel and the third channel in response to the actuating signal, enabling air bypass during idle or low-load conditions.

The utility model discloses a gasoline engine with a partition plate type carburetor, which comprises a gasoline engine casing, and an air filter and the partition plate type carburetor are mounted on the gasoline engine casing. The grounding wire is arranged on the gasoline engine shell, and a plug is arranged at one end of the grounding wire; the restraining and limiting mechanism comprises a placing base installed on the outer side face of the gasoline engine shell, a rotating shaft rotationally arranged on the inner side face of the placing base, a fixing roller arranged on the rotating shaft in a sleeving mode and a limiting frame installed at the inner bottom of the placing base, the grounding wire can be wound around the outer wall of the fixing roller, and the plug can be inserted into the limiting frame; the inner side face of the limiting frame is provided with abutting blocks which are symmetrically distributed, and when the plug is inserted into the limiting frame, the plug abuts against the side surfaces of the abutting blocks. The gasoline engine has the beneficial effects that through the designed constraint limiting mechanism, the constraint on the ground wire can be increased, the limitation on the plug can be increased, and the overall reliability and durability of the gasoline engine can be improved.

A throttle body arrangement (10) for an internal combustion engine (12), comprising: a throttle body (18) with a pressure chamber (100) in which a supply quantity of liquid fuel is received through a fuel inlet (104) and an outlet (120), and a throttle bore (20) with an inlet (22) through which air is received; a throttle valve (52) carried by the throttle body (18) with a valve head (54) movable relative to the throttle bore (20) to control fluid flow through the throttle bore (20); a metering valve (28; 152) carried by the throttle body (18) and comprising an electrically driven actuator (72) with a valve element (68) that is movable by the electrically driven actuator (72) between an open position in which fuel can flow from the pressure chamber outlet (120) into the throttle bore (20) and a closed position in which less fuel flows through the metering valve (28; 152) and into the throttle bore (20) compared to when the valve element (68) is in the open position, and wherein less fuel includes the state in which no fuel flows through the metering valve (28); and a valve arrangement (106) comprising a valve (108) movable relative to a valve seat (110) to control fuel flow into the pressure chamber (100) through the fuel inlet (104), and a float (112) coupled to the valve (108) to move the valve (108) into a closed position against the valve seat (110) when a threshold level of fuel is present in the pressure chamber (100), characterized in that The throttle body (18) also has a vent (102) which is connected to the pressure chamber (100) and through which gaseous substances in the pressure chamber (100) can escape from the pressure chamber (100).

The invention provides a general gasoline engine carburetor with an intelligent mixing ratio control function, and relates to the technical field of general gasoline engine carburetors. An air disturbance compensation mechanism is arranged in an air inlet channel of the carburetor, and the initial frequency and amplitude of air disturbance are determined by detecting an instantaneous negative pressure signal of the air inlet channel; a reference aerodynamic disturbance model is established according to the current rotating speed of an engine, gas pressure signals are collected in real time through differential pressure sensors arranged on the upstream portion and the downstream portion of an air inlet channel, and the instantaneous gas density change rate is calculated so that the concentration trend of mixed gas can be obtained. The problem that dynamic response of the mixing ratio of an existing carburetor is lagged is effectively solved, when the acceleration of a throttle valve exceeds a threshold value, the system immediately triggers fuel oil to compensate in advance, the angle of a spoiler is adjusted in real time along with the rotating speed, atomization uniformity is remarkably improved, the phenomena of acceleration power interruption and tempering are avoided, and stable combustion and transient response under all working conditions are achieved.

A handheld power tool (1) is disclosed comprising an actuator mechanism (4) which comprises a first mechanism member (11) comprising a button unit (5) and a guide unit (7), and a second mechanism member (12) attached to a tool body (3). The first mechanism member (11) is pivotally attached to the second mechanism member (12) between a deactivating position and an activating position. The first and second mechanism members (11, 12) form a locking mechanism (6) configured to allow the first mechanism member (11) to pivot from the deactivating position to the activating position when the button unit (5) is in an unlocking position. The button unit (5) is slidably arranged relative to the guide unit (7) from a locking position towards the unlocking position in a first direction (d1) pointing towards the tool body (3).

To provide an engine system which can easily and efficiently discharge blowby gas from a crankcase.SOLUTION: An engine system in which blowby gas having a specific gravity with respect to air of smaller than 1 can be produced comprises a cylinder block 5. The cylinder block 5 includes a cylinder 51 and a crankcase 52 which are aligned in a vertical direction D2, the crankcase 52 being located below the cylinder 51. A ventilation port 502 leading to a ventilation passage 503 which connects an internal space Sp1 of the crankcase 52 and an external space of the cylinder block 5 is opened in an internal peripheral face 501 of the cylinder block 5. The ventilation port 502 is positioned on an upper side relative to a center C1 in the vertical direction D2 in the crankcase 52.SELECTED DRAWING: Figure 7

The utility model provides a chain saw carburetor cover which comprises a carburetor box body, positioning columns are symmetrically connected to the upper surface of the carburetor box body, positioning holes are correspondingly formed in the positions, corresponding to the positioning columns, of the lower surface of the carburetor box body, and sealing grooves are correspondingly formed in the positions, corresponding to the upper surface of the carburetor box body, of the lower surface of the carburetor box body. Meanwhile, the upper surface of the carburetor box cover is fixedly connected with a fixing ring, a through hole is correspondingly formed in the position, opposite to the positioning hole, of an inner cavity of the fixing ring, a sealing sleeve is fixedly connected into the positioning hole, the side face of the through hole is in threaded connection with a fixing piece through a threaded connection hole, and the carburetor box cover is fixedly connected with a positioning column through the fixing piece. Through the cooperation of the positioning column, the fixing piece, the fixing ring, the sealing layer and the sealing sleeve, the sealing performance of the joint between the carburetor box body and the carburetor box cover can be effectively enhanced.

To enable reception of an electric signal or the like between an internal part and an external part of an air tight container while maintaining air tight of an air tight container with a simple construction.SOLUTION: An airtight connection assembly comprises: a conductive member constructing a path of a signal or fluid; a sealing part that contains a first sealing part having a shape that can cover a first hole formed in a separation wall of an air tight container, and a sealing material; and a connection part containing a connector connected to one or both end parts of the conductive member. In the airtight connection assembly, a second hole as a penetration hole formed so as to communicate the internal part with the external part of the air tight container is formed in the first sealing member. The conductive member is individually inserted into a second hole. The sealing material is filled to the conductive member and an inner peripheral surface of the second hole. By coupling the connector and the first sealing part, a coupling member for fixing a position relation of the connector and the first sealing part may be further comprised, and a second sealing member that surrounds a first hole, and is interposed to between the interference wall and the first sealing part may be further comprised.SELECTED DRAWING: Figure 14

The present invention comprises an engine, a centrifugal clutch for transmitting the drive force of the engine to a driven device, and a control device for adjusting the power of the engine. The engine is accelerated by starting engine power capable of reaching a rotational speed higher than the clutch-in rotational speed at the time of starting. The control device has suppression control for suppressing the starting engine power so that the rotational speed does not exceed the clutch-in rotational speed.

The utility model relates to a carburetor main orifice flow measurement device, including a measuring mechanism and a measuring base. The measuring mechanism includes a measuring drive unit, a measuring head body, a pressure rod assembly, a measuring pipeline and a flow sensor. The output end of the measuring drive unit is connected to the measuring head body, the measuring head body is connected to the pressure rod assembly, the measuring pipeline is connected to the measuring head body, the measuring pipeline is used to be connected to an external oil tank, and the flow sensor is arranged on the measuring pipeline; the measuring base is used for placing the carburetor main orifice, and the notch of the carburetor main orifice faces the pressure rod assembly. The technical solution of the present application is provided with a measuring device specifically for measuring the flow of the carburetor main orifice, which has high detection accuracy and improves measurement efficiency. Among them, the test oil in the external oil tank can pass through the measuring pipeline, the measuring head body, the pressure rod assembly, the carburetor main orifice and the measuring base, and the flow sensor can measure the maximum flow of the carburetor main orifice in the oil inlet direction.

The carburetor with the oil needle easy to adjust comprises a shell, an oil needle body is arranged in the shell, eight end heads are sequentially arranged at one end of the oil needle body, a connecting hole is formed in one side of each end head, a sleeve block is fixedly connected to the side, away from the connecting hole, of each end head, and the oil needle body is arranged in the sleeve block. The tail end of the oil needle is composed of a plurality of end blocks which are mutually combined in a threaded mode, a gasket is arranged on the surface of one sleeve block in a sleeved mode, a connector matched with the connecting hole is fixedly connected to one side of the sleeve block, a clamping groove is formed in the top of the sleeve block, and a buckle assembly is arranged on the top of the inner side of the gasket. When the oil needle is adjusted, only the end block at the position corresponding to the gasket needs to be detached, the gasket can fall off, the gasket is taken down to be clamped to the end block at the set position, and the end block is tightened and fixed, so that the adjustment work of the oil needle is rapidly completed, the adjustment efficiency of the oil needle is improved, and convenience is provided for work and use of a user.

The invention relates to a method for producing a fluid circuit (1) comprising at least one tube (2, 20), the tube having a free end (3, 30) for attachment of a pipe, in particular a deformable pipe, the method comprising a preliminary step of producing and supplying at least one tube (2, 20), a step of selecting the predetermined design standard to be applied in order to define a fitting distance (C) between the free end (3, 30) of the tube (2, 20) and an axial stop means (4), and a step of forming said axial stop means (4) relative to the at least one tube (2, 20) such that one of the transverse edges (41) of said axial stop means (4) is positioned at the distance (C) from the free end (3, 30) of the tube.

The utility model relates to a carburetor with a novel oil drainage structure, in particular to the technical field of carburetors. The carburetor comprises a carburetor body and an oil drainage mechanism arranged in the carburetor body, the oil drainage mechanism comprises a floater chamber and an oil drainage guide opening, a guide cavity communicated with the oil drainage guide opening is formed in a bottom shell of the carburetor body, a switch rod is arranged in the guide cavity, and the floater chamber is communicated with the oil drainage guide opening. A first boss is arranged at the end, facing the oil drainage guide opening, of the switch rod, a cylindrical protruding head is arranged on the side, close to the oil drainage guide opening, of the first boss, and the end, close to the first boss, of the protruding head is sleeved with a first sealing ring. The raised head is changed into a cylindrical shape and is matched with the first sealing ring, so that the sealing of the oil drainage guide port can be easily realized, the processing precision and the coaxiality of the raised head do not need to be too high, and meanwhile, the hidden danger of oil leakage caused by non-sealing does not exist when the raised head is disassembled and locked for many times.

A fuel bowl system for a carburetor has a fuel bowl with a cavity configured to receive and store liquid fuel prior to delivery to the carburetor. The fuel bowl has a main structure extending from an outer surface of the fuel bowl. The main structure has an inlet for receiving liquid fuel from a fuel source and discharge passages in fluid communication with the inlet and the cavity. A cap is removably connected to the main structure. The main structure and the cap together define fuel delivery channels in fluid communication with the inlet and the discharge passages. The inlet directs liquid fuel received from the fuel source into the fuel delivery channels, the fuel delivery channels deliver the liquid fuel into the discharge passages, and the discharge passages discharge the liquid fuel into the cavity of the fuel bowl.

The utility model discloses a leakproof carburetor which comprises a carburetor body, a floater chamber and a balance hole, a storage oil way is arranged in the carburetor body, and the balance hole is communicated with the floater chamber through the storage oil way. The position where the balance hole is communicated with the oil storage path is higher than the horizontal plane where fuel oil in the oil storage path is located when the carburetor topples to a set angle; the leakage-proof carburetor can ensure that fuel oil in the floater chamber cannot leak out from the balance hole in the inclination process of the carburetor, the fuel is saved, environmental pollution and potential safety hazards are prevented, the safety of an engine is improved, meanwhile, the overall size of the carburetor is not changed, and the carburetor is convenient to use. Compared with a leak-proof carburetor which is communicated with an external fuel oil container or an additional anti-toppling valve outside a balance hole, the leak-proof carburetor has the advantages that the required assembly space is smaller, and the leak-proof carburetor is convenient to assemble.

An engine control device that regulates fuel to be supplied to an engine including: a starting fuel supply valve that supplies starting fuel to air to the engine or to an air-fuel mixture of air and fuel in starting the engine; an engine temperature detection unit that detects an engine temperature of the engine; an engine speed detection unit that detects the engine speed of the engine; and a control unit that controls the starting fuel supply valve to open and close to control the engine, in which the control unit controls an opening time of the starting fuel supply valve according to the engine temperature and the engine speed.

The invention discloses a diesel gasification device and a cyclic quantitative control method. The controller firstly preheats the heating piece and then controls the air inlet valve to be opened, so that air enters the mixing cavity through the air inlet pipe and the heating net, and the pressure in the cavity is adjusted to a preset pressure threshold upper limit Ptar1; the controller calculates the target fuel injection quantity of the liquid fuel injector according to the air state in the mixing cavity and the target equivalence ratio and controls the liquid fuel injector to complete fuel injection; the controller controls an oil and gas injection valve to be opened, an oil and gas mixture is injected till the lower limit Ptar2 of a preset pressure threshold value is reached, and after injection is finished, the controller calculates the residual air amount and the residual fuel oil amount in a mixing cavity based on the pressure, temperature and oxygen concentration detection signals after injection; and the controller opens the air inlet valve to supplement air to the mixing cavity until the pressure in the cavity reaches the pressure threshold upper limit Ptar1, then the air inlet valve is closed, the air supplement amount is determined according to the pressure difference before and after air supplement, and the needed oil supplement amount is calculated in combination with the target equivalence ratio. According to the invention, spray crushing and atomization are realized no longer depending on ultrahigh injection pressure.

A thermal choke, includes (1) a body, comprising a heat conductive material, (2) an electric heater, on or in the body, (3) a temperature sensor, on or in the body, and (4) a fin, in a channel surrounded by the body. The thermal choke is configured to fit between a throttle assembly and a cylinder of a spark ignition engine.

The fuel oil supply system comprises a body, a mixing chamber, an oil storage chamber and an oil supply channel, the mixing chamber is arranged in the body and communicated with one end of the oil supply channel, the other end of the oil supply channel is communicated with the oil storage chamber, and the oil supply channel comprises a main metering jet, a foam pipe and the main spray pipe which are communicated in sequence. The main metering jet is communicated with the oil storage chamber, the nozzle of the main spray pipe extends to the mixing chamber, the atomization enhancing structure is arranged on the periphery of the nozzle, when fuel oil is sprayed out of the nozzle, an oil film is formed at the atomization enhancing structure, the oil film can be atomized faster during vacuum suction, and an engine is made to run more stably and smoothly.

The present invention discloses a supercharging system for an air-cooled generator set, comprising an air filter, a carburetor, a cylinder head assembly, and a turbocharger. The air filter and the air inlet of the turbocharger are connected, the carburetor and the air outlet of the turbocharger are connected, the exhaust passage of the cylinder head assembly is connected to the exhaust gas inlet of the turbocharger, and the exhaust gas is discharged through the exhaust gas outlet of the turbocharger. The present invention has the following advantages and effects: by setting a turbocharger, the air filter and the air inlet of the turbocharger are connected, the carburetor and the air outlet of the turbocharger are connected, the exhaust passage of the cylinder head assembly is connected to the exhaust gas inlet of the turbocharger, and the exhaust gas is discharged through the exhaust gas outlet of the turbocharger. At this time, the turbocharger is driven to rotate during the exhaust gas discharge process, so that the turbocharger increases the intake amount entering the carburetor, and finally improves the combustion completeness of gasoline.

The fuel atomization device of the present invention is characterized by including: a second coupling part coupled to a first coupling part formed on an air bleeder tube or a carburetor main body; a first through hole formed on the air bleeder tube side and having a diameter larger than that of the outlet; a second through hole communicating with the first through hole, having the same diameter as the outlet, and communicating with and connected to the outlet of a jet nozzle; a step formed by the difference in diameter between the first and second through holes or by separate processing; spacers sequentially stacked on the step and having a third through hole in the center having the same diameter as the outlet; a plurality of meshes arranged between the spacers; and fixing means for fixing the stacked meshes and the spacer.

[Problem] To provide an engine device that is capable of suppressing pre-ignition and achieving stable combustion in an engine that is driven by heating a low GHG fuel having low greenhouse gas emissions, such as ammonia or methanol. [Solution] An engine device 1 drives an engine 2 by supplying a low GHG fuel having low greenhouse gas emissions, the engine device 1 including a heating unit 40 that heats at least one of air that is mixed with the low GHG fuel, and the low GHG fuel. In a case where pre-ignition of the low GHG fuel in the engine 2 occurs, or is predicted, heating by the heating unit 40 is reduced or stopped.

The present invention belongs to the field of gasoline engines, and in particular, relates to a carburetor heat insulation structure of a gasoline engine. It includes an intake bracket and an intake pipe, one end of the intake pipe is connected to the intake bracket, and the other end is fixedly connected to the cylinder. The intake bracket is arranged on one side of the carburetor, and an intake branch pipe is arranged on the other side opposite to the carburetor. The intake branch pipe and the intake bracket are fixedly connected and the carburetor is clamped. The intake bracket and the intake branch pipe are fixedly connected by screw connection; the intake bracket is fixedly connected by a snap-in insert embedded in the interior thereof and screws; the snap-in insert is a metal part. The present invention can prevent the carburetor part from being still above 58°C after the gasoline engine is shut down; the actual heating of the carburetor is reduced by step-by-step heat conduction; and the anti-seismic performance of the heat insulation structure is improved by segmented connection.