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WO/2023/034365A1 |
A supplemental fuel system includes a fuel mixer. The fuel mixer includes a nozzle and a stem. The nozzle is configured to be positioned within a conduit of an air supply system for a compression-ignition engine. The nozzle has a body de...
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WO/2022/250549A1 |
The present invention generally relates to a device and method for improving fuel atomization in a carburetor or a similar apparatus. More particularly, the present invention provides a unidirectional fuel nozzle designed to improve the ...
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WO/2022/159366A1 |
In at least some implementations, a charge forming device includes a main body having a throttle bore, a throttle valve, a housing and a circuit board including a throttle position sensor and a pressure sensor. The throttle valve is rece...
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WO/2022/051164A1 |
A charge forming device for a combustion engine includes a housing, a throttle valve and a vent valve. The housing has a throttle bore, an inlet chamber in which a supply of fuel is received, and a vent communicating with the inlet chamb...
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WO/2021/006416A1 |
The present invention relates to a carburetor comprising: a float chamber storing liquid fuel; an inflow portion wherein an opening thereof is closed to the liquid fuel in the float chamber; a small diameter portion through which the liq...
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WO/2021/003606A1 |
A throttle for electronic fuel injection comprises: a throttle body (1); a first throttle hole (2) and a second throttle hole (3) provided in the throttle body, a first throttle shaft (4) and a second throttle shaft (5) being respectivel...
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WO/2021/002041A1 |
An intake passage structure of a stratified scavenging engine (E) comprises: a vaporizer (3) having a rotary valve (50) configured to adjust the degrees of opening of a gas mixture passage (22) and an air passage (21); and a blocking mem...
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WO/2020/255344A1 |
This internal combustion engine, which has a first fuel pump that suctions fuel via a fuel filter and a second fuel pump that supplies the fuel to a fuel injection device, comprises: a first fuel pipe connecting the fuel filter, the firs...
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WO/2019/026249A1 |
This carburetor is provided with: a float chamber body that stores, in a float chamber, a fuel supplied to an internal combustion engine; a gas mixture supply mechanism that supplies, to an air intake passage, a gas mixture of air and th...
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WO/2018/232222A1 |
In at least some implementations, a charge forming device for a combustion engine includes a throttle body and a throttle valve. The throttle body has a throttle bore with an inlet through which air flows into the throttle bore and an ou...
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WO/2018/231120A1 |
The present disclosure relates to a carburetor assembly (7) comprising a control unit (17), an air channel (8), a throttle valve (9), a choke valve (10), a pulsed fuel valve (11), and a fuel supply line (12). The control unit (17) is ada...
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WO/2018/226369A1 |
Testing of various chemicals has yielded new chemicals and chemical mixtures for the use of removing carbon deposits from the internal combustion engine. Some of these chemicals and chemical mixtures have proven to work better across man...
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WO/2018/104232A2 |
The object of the invention is a carburetor (100) for an internal combustion engine of a working device, comprising an air funnel (10) and a control chamber (16) connected to a fuel tank, wherein the control chamber (16) is connected to ...
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WO/2018/104059A1 |
The subject matter of the invention is a carburettor (100) for an internal combustion engine of an implement having an air funnel (10), in which a throttle valve (12) is arranged, and having a control chamber (16) which is connected to a...
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WO/2018/104229A1 |
The subject matter of the invention is a carburettor (100) for an internal combustion engine of an implement, having an air funnel (10), a control chamber (16) which is connected to a fuel tank, and a pumping chamber (18) which has a dia...
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WO/2017/185017A1 |
In at least some implementations, a throttle body assembly for a combustion engine includes a throttle body having a pressure chamber in which a supply of fuel is received and a throttle bore with an inlet through which air is received, ...
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WO/2017/120581A1 |
A carburetor, a method of assembling a carburetor, and a method of operating an engine. The carburetor may generally include a housing defining a pump portion and a metering portion; and a maintenance port in communication with the pump ...
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WO/2017/110321A1 |
A vaporizer (11) is provided with: a shared path (46); a main air bleed path (43) and a slow air bleed path (45) which are individually connected to the shared path (46); a first valve body (47a) which changes, in the shared path (46), t...
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WO/2017/039614A1 |
A system and method for determining an estimated absolute in-cylinder pressure for one or more engine cylinders that do not have an in-cylinder pressure sensor. According to certain embodiments, an absolute in-cylinder pressure in a firs...
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WO/2016/210309A1 |
A carburetor may include a main body including a fuel and air mixing passage and a fuel bowl having a latch and a body defining a fuel chamber. The body is imperforate and the latch engages the main body to at least in part retain the fu...
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WO/2016/073697A1 |
In at least some implementations, a carburetor includes a body, a fuel pump diaphragm and a pressure pulse passage. The fuel pump diaphragm is carried by the body and defines in part a fuel chamber on one side of the fuel pump diaphragm ...
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WO/2016/048752A1 |
A simple engine, comprises (1) a cylinder, and a spark plug in the cylinder; (2) a carburetor, fluidly connected to the cylinder; (3) a primary air intake path, fluidly connecting atmosphere to the carburetor; (4) a carburetor bypass air...
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WO/2014/163904A1 |
In one aspect, an engine controller for an engine including multiple working chambers is described. The engine controller includes a mass air charge determining unit that estimates a mass air charge or amount of air to be delivered to a ...
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WO/2014/158957A1 |
An apparatus for delivering a fuel-air mixture to an engine is provided. The apparatus includes: a carburetor having one or more passages and one or more chambers, wherein at least some of the passages and chambers are in communication w...
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WO/2014/150749A1 |
In at least some implementations, an engine control process includes an engine speed test and other steps. The engine speed test includes the steps of a) determining a first engine speed, b) changing the air/fuel ratio of a fuel mixture ...
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WO/2014/076950A1 |
A cost of an engine working machine is suppressed, and startability of an engine (10) is improved. In an engine working machine for driving a working tool by using an engine (10) including: a fuel tank (27); a carburetor (35) for supplyi...
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WO/2014/052385A1 |
A carburetor provides a supplemental fuel supply to an engine and includes a body, a fuel metering diaphragm and a fluid pump. The fuel metering diaphragm defines part of a fuel metering chamber and a reference chamber and has at least a...
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WO/2014/032392A1 |
Disclosed is an improved energy-saving and emission-reducing apparatus for disturbing and boosting a mixture gas of a fuel oil engine. A spring-shaped device and a propeller-shaped device for further increasing the degree of mixing and a...
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WO/2013/134973A1 |
An opening degree control system for a carburetor throttle comprises a carburetor body (1), a stepping motor (2), a transmission mechanism (3) that is connected to the stepping motor (2) and controls the opening degree of a throttle, an ...
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WO/2012/143962A1 |
The object of the present invention is a methane pressure reducer/regulator for feeding internal combustion engines which comprises a body divided into three chambers, communicating with each other by means of high resistance conduits an...
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WO/2012/107721A1 |
An atomisation apparatus comprising: a fluid delivery conduit (100) having a first opening for communication with a source of fluid, and one or more orifices (110) for delivery of fluid; and a gas delivery conduit (200) having a first op...
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WO/2012/085989A1 |
One embodiment of the present invention provides a device for detecting inter-cylinder air-fuel ratio variation error equipped with: a wide-area air-fuel ratio sensor (42) and an O2 sensor (56), which are provided farther upstream in the...
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WO/2011/048871A1 |
Disclosed is an air-fuel ratio control device for an internal combustion engine. Said air-fuel ratio control device opens or closes a choke valve in accordance with a load and how open a throttle valve in a carburetor is, allowing variab...
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WO/2011/000205A1 |
A carburetor, attached with one standing-vortex rear fin (4) under or behind the plunger throttle (2) or diaphragm throttle (6) inside the carburetor body component (1). With the standing-vortex shedding and sweepback effect of the throt...
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WO/2010/136199A1 |
The invention relates to an electrically actuated carburetor (1) for gasoline engines, having an air funnel (4) for taking in fuel from a fuel line (2) opening into the air funnel (4), said fuel line being connected to a fuel chamber and...
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WO/2009/119429A1 |
A fuel supply device for an engine, which can increase the amount of fuel in a mixed gas (13) with good response with respect to operation of a throttle valve (23) when the engine (14) is rapidly accelerated and which is reduced in size....
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WO/2008/145973A1 |
A carburettor includes a primary air passage (19), an adjustable throttle valve (8) situated within the primary air passage, a fuel supply nozzle (28) communicating with the primary air passage and connected to a fuel metering valve for ...
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WO/2008/070767A2 |
A fuel enrichment device includes a body forming a first fuel chamber and a second fuel chamber. The second fuel chamber is adapted to contain a predetermined amount of enriching fuel to be provided to an engine. A normally open valve co...
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WO/2008/047435A1 |
An insulator (30) in which an acceleration pump fixing portion (51) is provided at the lower part of a heat insulating section (31), and an acceleration pump (50) is fixed to the acceleration pump fixing portion (51). A passage (41) is f...
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WO/2008/029875A1 |
An insulator (2) in which a housing (5) is integrally molded with a heat insulation section (20) at its lower part, where the housing (5) forms a part of a housing (64) of an acceleration pump (6). The construction enables the accelerati...
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WO/2007/127713A2 |
The invention comprises a method to determine a position of a piston in a cylinder of an engine during ongoing operation, comprising adapting pressure sensing devices to monitor in-cylinder pressure, and, operating the engine. In-cylinde...
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WO/2007/127718A2 |
The invention comprises a method to operate a direct-injection engine operative at various air/fuel ratios. The method comprises monitoring in-cylinder pressure, along with a corresponding engine crank position to periodically to determi...
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WO/2007/127715A2 |
A method for controlling operation of an internal combustion engine operating lean of stoichiometry is described. The engine comprises a multi-cylinder direct-injection engine, the engine operative in repetitive cycles each cycle compris...
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WO/2007/123670A2 |
The present invention provides an injector-ignition fuel injection system for an internal combustion engine, comprising an ECU controlling a heated catalyzed fuel injector for heating and catalyzing a next fuel charge, wherein the ECU us...
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WO/2007/101672A2 |
An apparatus and method for use with, a carbureted internal combustion engine that accurately controls the amount of fuel that passes through the carburetor (204) into the combustion chamber of the engine. A controlled triggering system ...
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WO/2007/065701A1 |
In order to allow fuel to be delivered in a controlled manner into a mixing chamber (6) of a carburetor, a needle (36) is displaced towards a needle seat (28) between an open and a closed position in a clocked manner relative to an intak...
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WO/2007/062341A2 |
A method and apparatus are provided to control combustion in a multi- cylinder internal combustion engine operating in a controlled auto-ignition mode with minimum combustion phasing error using a least amount of fuel reforming. This com...
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WO/2007/053250A1 |
A control system and method for balancing output and exhaust emission values of the various cylinders of an engine having individual cylinder fuel delivery control. Selected output and emission related values for one cylinder, selected a...
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WO/2006/127794A2 |
An algorithm for use in an engine control module (18) to control peak cylinder pressure in a diesel engine (12) under high altitude operating conditions, including an initiation and entering routine configured to determine whether condit...
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WO/2006/049946A1 |
An accelerator pump cap (30, 70, 100, 150) for an accelerator pump assembly of a carburetor, such as a motorcycle or ATV carburetor, has a cap body (30, 70, 100, 150) with a base (38, 80) and a sidewall (56, 78, 104, 154) projecting from...
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