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| Number | Title | Issue Date |
| 8069830 | Rigid primer bulb pump A hand operated primer pump for small marine or other engines generally spark ignition engines used on stern drive boats that prevents transfer of hydrocarbons into the atmosphere. The primer generally mimics and replaces prior art rubber primer bulbs in general sha... | 12/06/2011 |
| 7913659 | Carburetor start system Carburetor start system comprising a primer pump bulb coupled to a valve-opening mechanism, the primer pump bulb and valve-opening mechanism being operably coupled to a throttle valve and/or a choke valve. Pushing the primer pump bulb causes the throttle valve and/o... | 03/29/2011 |
| 7784440 | Combustion engine with a priming pump A combustion engine includes a carburetor, which is a fuel supply device for introducing fuel into an intake air of the engine, and a fan housing for enclosing a cooling fan mounted on a front end portion of a crankshaft. The fan housing is formed with a flange so a... | 08/31/2010 |
| 7690342 | Priming circuit for a fuel system A priming and purging fuel system for an internal combustion engine purges a diaphragm carburetor of the engine of stale liquid fuel and accumulated fuel vapor and air while simultaneously priming the carburetor and/or engine with liquid fuel for starting. A start p... | 04/06/2010 |
| 7267326 | Automatic priming system An automatic priming system for internal combustion engines, which is operable to prime the carburetor of the engine at engine cranking speeds, and is automatically disabled after the engine starts. The automatic priming system is driven by pressure fluctuations wit... | 09/11/2007 |
| 7210441 | Priming and purging system and method for an internal combustion engine A priming and purging system and method for an internal combustion engine having a diaphragm carburetor includes a pump in fluid communication with the carburetor, a portion of the engine, and a fuel tank. The pump is manually actuatable to draw liquid fuel and any ... | 05/01/2007 |
| 7185632 | Internal combustion engine and method of operating the same An internal combustion engine (20) has a cylinder (1) wherein a piston (2) is mounted. The piston (2) drives a crankshaft (10) which is rotatably journalled in a crankcase (11). The piston (2) delimits a combustion ch... | 03/06/2007 |
| 7185623 | Carburetor start pump circuit A carburetor start pump circuit, for starting an engine has an auxiliary fuel pump mounted on a relatively standard carburetor body, a start pulse passage extending through the carburetor body to the auxiliary fuel pump, and a fuel circuit having an intake side whic... | 03/06/2007 |
| 7152852 | Priming system for a float bowl carburetor A float bowl type carburetor has a fuel and air mixing passage extending therethrough, a float bowl assembly, a priming pump communicated with the float bowl assembly and a fuel supply pipe that is communicates fuel in the float bowl assembly with the fuel and air m... | 12/26/2006 |
| 7128309 | Automatic choke system for carburetor An automatic choke system includes: a wax-type temperature sensing section; and an output section which opens a choke valve of a carburetor in response to heat receiving operation of the temperature sensing section. Temperature sensing section includes: a bottomed c... | 10/31/2006 |
| 7111616 | Starting apparatus of diaphragm-type carburetor A starting apparatus of a diaphragm-type carburetor, a starting pump disposed at a convenient and accessible location which is separate from a carburetor main body, and air is prevented from being mixed into fuel, in such a structure constructed as a suction-type st... | 09/26/2006 |
| 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 |
| 7051692 | Starting system for a marine engine An engine starting fuel enriching system provides a valve that is located downstream of an air feed conduit that is connected in fluid communication with a first fuel conduit. The fuel conduit is connected between a fuel reservoir and the valve. When the valve is in... | 05/30/2006 |
| 7021195 | Priming pump The invention relates to a priming pump comprising an enclosure having an elastically deformable central zone connected to two coupling zones, the enclosure being comprising an outer layer of elastomer material and an inner layer of barrier-forming material against ... | 04/04/2006 |
| 6935294 | Fluid actuated engine starting system and method for a hybrid vehicle powertrain A pump-motor is used to move engine pistons to a position where the exhaust ports of a first cylinder are opened, and later to move the pistons to a position where the inlet ports and exhaust ports of the first cylinder are closed. Fuel is then injected into the fir... | 08/30/2005 |
| 6913250 | Carburetor arrangement A carburetor arrangement for an internal combustion engine in a manually guided implement, such as a power chainsaw, a cut-off machine, etc. is provided. A regulating chamber delimited by a regulating diaphragm is provided. Upon deflection of the diaphragm due to un... | 07/05/2005 |
| 6895914 | Automatic engine priming system for rotary mowers A priming system for the carburetor of a small internal combustion engine which is used with a lawnmower, for example, in which the priming system is remotely actuated. The priming system includes a priming feature for supplying an amount of liquid fuel to the carbu... | 05/24/2005 |
| 6889663 | Cam sensor elimination in compression-ignition engines A method for controlling start of a compression ignition engine having a plurality of cylinders without a cam sensor is provided. Each cylinder includes a respective piston reciprocally movable between respective top and bottom positions along a cylinder longitudina... | 05/10/2005 |
| 6863266 | Push button air primer for carburetor A push button air primer including a priming piston slidably housed in a primer housing and a sealing piston slidably housed in the priming piston. To prime the carburetor, the operator depresses the priming piston causing both priming piston and sealing piston to s... | 03/08/2005 |
| 6848680 | Push button air primer for carburetor A push button air primer is provided for a carburetor used with a small internal combustion engine. The carburetor includes a primer chamber having a piston sealingly and slidably movable therein, with a return spring biasing the piston outwardly of the carburetor. ... | 02/01/2005 |
| 6840508 | Push button air primer for carburetor A primer assembly is provided including a resilient primer bulb which, along with the carburetor body, defines a variable volume priming chamber. A plunger or blocking element is slidably disposed within the priming chamber. Upon initial depression of the primer bul... | 01/11/2005 |
| 6799545 | Carburetor start pump circuit A carburetor start pump circuit, for starting an engine has an auxiliary fuel pump mounted on a relatively standard carburetor body, a start pulse passage extending through the carburetor body to the auxiliary fuel pump, and a fuel circuit having an intake side whic... | 10/05/2004 |
| 6779503 | Automatic engine priming system for rotary mowers A priming system for a carburetor for small internal combustion engines, wherein the priming system is remotely actuated and includes an automatic primer disabling feature operative when the engine is in a warm condition to prevent the supply of an overly rich fuel/... | 08/24/2004 |
| 6561495 | Carburetor fuel priming pump with integral fuel bowl drain A carburetor with a manual priming pump having an integrated fuel drain which provides both the engine manufacturer and end user with an easy way to drain fuel from a fuel chamber of the carburetor. The priming pump has a pump chamber defined by a resilie... | 05/13/2003 |
| 6557833 | Priming system for an engine carburetor A priming system for an engine carburetor. The priming system includes a passageway having a first end in fluid flow communication with a variable volume chamber of a primer bulb and a second end in fluid flow communication with a fuel well. The second en... | 05/06/2003 |
| 6533254 | Carburetor fuel pump A carburetor for a small internal combustion engine has a manual priming fuel pump with a resilient valve for allowing fuel flow in a first direction and for preventing fuel flow in a second direction. The resilient valve is reinforced with longitudinally... | 03/18/2003 |
| 6481403 | Carburetor with purge prime system A diaphragm type carburetor which has a purge system to remove air and fuel vapor from the carburetor and to fill it with liquid fuel prior to starting an engine fed by the carburetor. The purge system has a primer valve actuated by moving a choke valve o... | 11/19/2002 |
| 6374782 | Air-fuel mixture generating device An air-fuel mixture generating device includes a main body equipped with a diaphragm-type fuel pump, a fuel injection valve attached to the main body, and a manual fuel pump attached to the main body for filling a fuel passageway with fuel when the diaphr... | 04/23/2002 |
| 6374810 | Fuel and air purge system for diaphragm carburetors A method of reducing gaseous phase presence in the liquid fuel metering chamber of a diaphragm by providing a "High-Point Pick Up" hole positioned in the optimal metering chamber location (highest) to assure maximum purge evacuation of air and/or other ga... | 04/23/2002 |
| 6152431 | Carburetor having extended prime A carburetor having an extended prime fuel chamber for gasoline engines. The carburetor includes a carburetor body having a throat, a fuel bowl, a conduit extending from the fuel bowl to the throat, a variable volume primer chamber communicating with the ... | 11/28/2000 |
| 6076509 | Fuel supply apparatus of outboard motor A fuel supply apparatus of an outboard motor for supplyng an air to an engine of the outboard motor comprises a vapor separator for removing bubbles in the a fuel, a float-type bubble discharge valve which is provided for the vapor separator and adapted t... | 06/20/2000 |
| 6029619 | Remote primer A remote priming device that is particularly adaptable to a working machine having a handle section and an internal combustion engine with a resilient primer bulb, may be designed as a kit and retrofitted onto the working machine. The remote priming devic... | 02/29/2000 |
| 5970935 | Fuel system primer bulb The assembly comprises a flexible bulb 12 defining a pumping chamber 14 and secured at opposite ends by bands 34 to inlet and outlet housings 26. An inlet check valve 18 is supported by an inlet valve wall 38, which is, in turn, supported in a recess 36 i... | 10/26/1999 |
| 5899193 | Diesel engine fuel system and method of priming A fuel system and method for priming a diesel engine fuel system after assembly or when run out of fuel in which the system has a filter that can trap air allowing drainback of fuel to the tank. The system is provided with a fuel priming connection to the... | 05/04/1999 |
| 5896846 | Fuel module A fuel module including a fuel filter located on a valve block 10 and having a replaceable filter insert 14 in a filter housing 11. The fuel module also has a manually-operable feed pump 31, a connection 8, located on the valve block 10, for fuel supply, ... | 04/27/1999 |
| 5803035 | Carburetor with primer lockout A carburetor prevents priming of a combustion engine under certain operating conditions. The carburetor includes a body member having a wall portion defining an orifice extending through the body member, a fuel nozzle positioned through the wall portion a... | 09/08/1998 |
| 5785085 | Closed feeding system for liquid fuel A closed feeding system for liquid fuel includes a flexible tube (1) extending from a reservoir (7) to a strainer housing (8) for differential pressure feeding of fuel, provided with pump assembly (3), in which system there is disposed a second, flexible ... | 07/28/1998 |
| 5750056 | Remotely controlled primer actuator for power equipment engines A throttle-responsive device is provided which includes a lever which is selectively displaced from a remote point so as to actuate the primer bulb of an engine.... | 05/12/1998 |
| 5740781 | Starting system for an internal combustion engine A starting system for an internal combustion engine is provided for enhancing engine startability and performance by simultaneously controlling the volume of air flowing through a carburetor and the ratio of an air/fuel mixture through a single manual ope... | 04/21/1998 |
| 5706774 | Carburetor start pump circuit A carburetor start pump circuit, for starting an engine, has an auxiliary fuel pump mounted on a relatively standard carburetor body, a pulse passageway extending through the carburetor body to the auxiliary fuel pump, and a fuel circuit having an intake ... | 01/13/1998 |
