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| Number | Title | Issue Date |
| 7404546 | Carburetor arrangement A carburetor arrangement for a manually-guided implement operated by an internal combustion engine. A carburetor supplies a fuel/air mixture to the engine, with a butterfly valve being disposed in the intake duct of the carburetor and with a choke valve being dispos... | 07/29/2008 |
| 7344125 | Carburetor choke valve electronic control system A carburetor choke valve electronic control system includes: a transmission device coupled to a choke valve for opening and closing an intake path of a carburetor; an electric motor for driving the choke valve to be opened and closed via the transmission device; and... | 03/18/2008 |
| 7337757 | Carburetor arrangement for an internal combustion engine A carburetor (1) for an internal combustion engine has an intake channel section (3) wherein a throttle element and a choke element are supported to pivot about respective rotational axes (34, 35). The carburetor (1) has a starter unit wh... | 03/04/2008 |
| 7246591 | Automatic choke control system for general-purpose engine In an auto-choke system for a general-purpose engine, it is determined whether the operator has operated a combination switch to enable ignition in the engine and based on the result of this determination, the operation of a choke motor (actuator) is controlled to r... | 07/24/2007 |
| 7213555 | Automatic choke A choke valve is controlled finely suited to the running state of an engine. A throttle valve 8 and a choke valve 9 are provided in series on an intake pipe 6, and the opening degree of the choke valve 9 is controlled by a stepping motor.... | 05/08/2007 |
| 7118097 | Device for controlling choke valve of carburetor A device for controlling a choke valve of a carburetor for an engine includes: a choke closed state hold device for holding, in a closing position, a choke lever urged by a spring in a direction for opening the choke valve, when the choke lever is turned to the clos... | 10/10/2006 |
| 7108251 | Fuel enrichment system for carburetors for internal combustion engines A carburetor for an internal combustion engine having a body that fastens at a first end to an air filter and at a second end to the intake port of a cylinder head. The body has an intake bore formed in the first end that receives air from the air filter, a throttle... | 09/19/2006 |
| 7097163 | Device for controlling choke valve of carburetor A device for controlling a choke valve of a carburetor for an engine, includes a choke closed state hold device for holding, in a closing position, a choke lever connected to the choke valve of a carburetor and urged by a spring in a direction for opening the choke ... | 08/29/2006 |
| 6899072 | Vacuum-operated choke system and method A vacuum-operated choke system for use with an internal combustion engine and method of using the same including a vacuum actuator for moving an actuating arm for connection to a choke valve of an internal combustion engine from a first position to a second position... | 05/31/2005 |
| 6851664 | Self-relieving choke valve system for a combustion engine carburetor A self-relieving choke valve system for a carburetor of a combustion engine automatically opens a choke valve after a successful engine start up and permits the choke valve to automatically close when the engine is shut down. The self-relieving choke valve system is... | 02/08/2005 |
| 6779785 | Self-relieving choke adjustment apparatus A self-relieving choke adjustment apparatus for an internal combustion engine carburetor including a choke valve body and a choke mixing passage formed in the valve body. A choke plate is supported in the mixing passage for pivotal motion about a parallel choke plat... | 08/24/2004 |
| 6722638 | Control system for choke valve of carburetor A choke valve control system includes a choke-operating lever for opening and closing a choke valve of a carburetor, a choke spring for biasing the valve in an opening direction, and a damper for controlling the opening motion of the valve to a lower speed, when the... | 04/20/2004 |
| 6659432 | Carburetor arrangement The invention relates to a carburetor arrangement for an internal combustion engine (1), especially for a drive motor of a work apparatus such as a motor-driven chain saw, a brushcutter, a cutoff machine or the like. The carburetor arrangement includes a ... | 12/09/2003 |
| 6619632 | Choke valve device in carburetor A choke valve device in a carburetor including an opening spring for biasing a choke valve in a fully opening direction, a negative pressure operating chamber provided in a carburetor body to communicate with an intake passage at a location downstream fro... | 09/16/2003 |
| 6550749 | System for actuating a carburetor of an internal combustion engine For an internal combustion engine carburetor (10) having a throttle valve (14) and a choke (22), the throttle valve (14) and the choke (22) can be brought in dependence on each other to different sets of predetermined operating positions which are appropr... | 04/22/2003 |
| 6494439 | Carburetor control system having two cam members connected to choke valve and throttle valve A carburetor control system for a carburetor including a first cam and a second cam. The carburetor includes a choke valve assembly and a throttle valve assembly. The first cam is connected to the choke valve assembly. The second cam is connected to the t... | 12/17/2002 |
| 6454245 | Engine intake control mechanism An engine intake control mechanism has a throttle valve that can be rotated to a cold-starting position in response to the closing movement of a choke valve and, even if the throttle valve is opened beyond the cold-starting position, the choke valve is re... | 09/24/2002 |
| 6439547 | Carburetor throttle and choke control mechanism A carburetor throttle and choke control mechanism incorporating a choke-throttle cold-start fast idle setting latch mechanism having, in a first embodiment, a blade of a fast idle lever specially contoured for creating upon interengagement with a tang on ... | 08/27/2002 |
| 6202989 | Carburetor throttle and choke control mechanism A control mechanism for a carburetor having a throttle valve and a choke valve each having at least a cold-starting position and a full-speed position. The throttle valve is spring biased toward its third, low idle position, and the choke valve is mounted... | 03/20/2001 |
| 6116581 | Choke system for a small four-cycle engine A four-cycle engine has a base plate provided on a side of the engine and having an opening communicated with a carburetor. A choke plate is pivotally mounted on the base plate, and a choke lever is pivotally mounted on the base plate. A transmitting mean... | 09/12/2000 |
| 6000683 | Carburetor throttle and choke control mechanism A control mechanism for a carburetor having a throttle valve and a choke valve each having at least a cold-starting position and a full-speed position. The throttle valve is spring biased toward its third, low idle position, and the choke valve is spring ... | 12/14/1999 |
| 5827455 | Engine choke control An engine choke actuation system automatically controls both the opening degree of the choke and throttle valves of a plurality of charge formers during all phases of engine warmup. The engine choke actuation system also includes a manual override mechani... | 10/27/1998 |
| 5693264 | Portable working tool with internal combustion engine A portable working tool such as a motor chainsaw has a housing and an internal combustion engine with a carburetor contained in the housing. A throttle valve is connected to the carburetor. A choke flap is connected to the carburetor upstream of the throt... | 12/02/1997 |
| 5215049 | Portable handheld work apparatus The invention relates to a work apparatus such as a motor-driven chain saw having an internal combustion engine equipped with an electrical ignition system. Combustion air is supplied via an intake channel and fuel is supplied via a carburetor. The intake... | 06/01/1993 |
| 5200118 | Carburetor for chain saws Carburetor for internal combustion engine for movable equipment such as a chain saw which includes throttle and choke valves, each of which is actuatable by its own actuating member. Furthermore, a holding member for the throttle valve is provided, which ... | 04/06/1993 |
| 5174255 | Portable hand-held blower unit A portable, hand-held blower unit is powered by a small internal combustion engine having movable choke and throttle control elements linked to a single adjustment knob. Rotation of the knob between full throttle and full choke positions thereof simultane... | 12/29/1992 |
| 5103781 | Automatic choke and starting aid for small two-cycle internal combustion engines An automatic choke assembly or starting aid is coupled with a small internal combustion engine. The choke assembly is responsive to a pressure differential in the internal combustion engine which causes movement of a mechanism to control the amount of com... | 04/14/1992 |
| 4888034 | Choke device for internal combustion engine A choke device for an internal combustion engine. A choke plate formed with an opening capable of aligning with a suction port of a venturi of a carburetor is slidably supported for opening and closing the suction port. Legs of a suitable length which ris... | 12/19/1989 |
| 4834784 | Air filter choke valve method and spitback shield An airflow controller for use in an air filter for an internal combustion engine. The airflow controller comprises a frame and means for movably mounting the frame in the air filter for relatively lateral movement therein. The airflow controller frame com... | 05/30/1989 |
| 4820454 | Starting aid for small internal combustion engines A choke assembly or starting aid for small internal combustion engines is disclosed. An inertia valve is resiliently biased in the bore of the engine. The inertia valve is responsive to vibration of the internal combustion engine for providing a controlle... | 04/11/1989 |
| 4788014 | Auto-choke device Two embodiments of choke mechanisms for internal combustion engines such as those of outboard motors embodying an automatic actuator for positioning the choke valve in reponse to temperature variations and a mechanical actuator for permitting manual opera... | 11/29/1988 |
| 4738232 | Fuel primer for float type carburetors A fuel primer for float type carburetors for small internal combustion engines is disclosed. The fuel primer is associated with the fuel bowl of a float type carburetor. The fuel bowl is coupled with a fuel inlet, an atmospheric outlet vent, and a nozzle.... | 04/19/1988 |
| 4711744 | Starting aid for small internal combustion engines A choke assembly or starting aid for small internal combustion engines is disclosed. An inertia valve is resiliently biased in the bore of the engine. The inertia valve is responsive to vibration of the internal combustion engine for providing a controlle... | 12/08/1987 |
| 4699739 | Gasoline engine choking arrangement A gasoline engine choking arrangement which serves as a modification to automatic chokes found in existing 9 and 11 cubic inch vertical shaft gasoline engines, i.e. an arrangement which achieves effective gasoline engine starting under both hot and cold c... | 10/13/1987 |
| 4608209 | Carbureter for internal combustion engine In order to enable a carbureter body formed of a soft material such as a synthetic resin to be coupled easily between an air cleaner and a manifold pipe in its state of not developing a distortion, the carbureter for an internal combustion engine comprise... | 08/26/1986 |
| 4539162 | Choke assembly for golf cart An air intake assembly for a golf cart engine provides an air inlet port in a passenger compartment shielded from road dust for introducing clean air for combustion into the carburetor located in the rear mount engine compartment, as connected by flexible... | 09/03/1985 |
| 4530805 | Flow regulating carburetors A flow regulating carburetor having a movable control element operating within the throat of a venturi air passage, the element being automatically displaced to vary the effective size of the throat as a function of the mass-volume of the air stream flowi... | 07/23/1985 |
| 4495911 | Choke device An air filter in front of the intake opening of the carburetor has an elastic lower surface (20) with a bead (19) which is movable in the intake opening. The displacement is adjusted by means of a choke control (22) which at maximum deflection presses the... | 01/29/1985 |
| 4490309 | Integrated fuel control system for gasoline engine An integrated fuel control system for a gasoline engine including a linkage composed of a plurality of pivotable members which enables an operator to effect control of the choking condition of the gasoline engine and the magnitude of its power satisfactor... | 12/25/1984 |
| 4482508 | Altitude compensation device for internal combustion engine An altitude compensation device for internal combustion engines such as automotive engines. The device has a first diaphragm device and a second diaphragm device which are provided with a first diaphragm chamber and a second diaphragm chamber defined by a... | 11/13/1984 |
