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Class 123/184.46 - For use with carburetor upstream of manifold


Subclass of Class 123 - Internal-combustion engines
Definition: Intake manifold which communicates between the engine and
No. of patents: 42
Last issue date: 10/05/2010


1    
NumberTitleIssue Date
7806096In-line induction system for internal combustion engine
In line carburetor (104) is mounted to a manifold (140) over the engine (800). The barrels of the carburetor deliver air/fuel suspensions to concentrated positions (152) of the manifold, with the concentrated positions being at opposite e...
10/05/2010
7523730Carburetor spacer
A carburetor spacer is provided with an isolation member to isolate the flow of atomized fuel from a carburetor to an intake manifold of an internal combustion engine comprising first and second hollow members fitting one inside the other and an elastomeric member i...
04/28/2009
7331314Two-stroke engine
A two-stroke engine has a cylinder with a combustion chamber that is delimited by a reciprocating piston that drives with a connecting rod a crankshaft rotatably supported in a crankcase. In predetermined positions of the piston, the crankcase is connected by at lea...
02/19/2008
7331276Piston for a two-cycle engine
A piston for a two-cycle engine having a piston head and a piston wall in which are disposed wrist pin eyes. At least one undercut is formed between the underside of the piston head and the wrist pin eyes at a distance from the piston head. The undercut extends from...
02/19/2008
7232351Personal watercraft
A personal watercraft includes a saddle ride type seat provided at a roughly central portion of a watercraft body, an engine mounted on the lower side of the seat and directed in a front-rear direction of the watercraft body, and cylinders provided in the engine are...
06/19/2007
7201142Variable center pivot tumble control valve geometry for an intake manifold
A tumble control valve for an intake manifold of an engine which eliminates or substantially reduces air leakage between the bottom and sides of the valve blade through a selected rotational segment of the blade as it moves from the closed position toward the open p...
04/10/2007
7107962Carburetor hat for forced induction system
A forced air induction system (10) constructed in accordance with the principles of a preferred embodiment of the present invention and configured for supplying compressed induction fluid to an internal combustion engine (E) for powering a vehicle (V) is disc...
09/19/2006
7096849Charge motion control plate kit
The present invention provides a charge motion plate kit for internal combustion engines. More specifically, the charge motion plate kit permits replacement of the OEM charge motion valves of the prior art for high performance applications. In one embodiment, the ch...
08/29/2006
7082910Two-stroke internal combustion engine
Crankcase scavenged two-stroke internal combustion engine (1), in which a piston ported air passage is arranged between an air inlet (2) and the upper part of a number of transfer ducts (3, 3′). The air passage is arranged from an air inlet (
08/01/2006
7017544Carburettor vibration damper
Use of an vibration damper to dampen vibration transmitted from an engine to a carburettor is found to enhance carburettor and therefore engine performance. The vibration damper is conveniently placed axially between the carburettor and an end of the intake manifold...
03/28/2006
6889647Connector assembly
A connector assembly including the resilient member and two band clamps includes a feature for preventing the band clamps from overlapping with each other when the band clamps are tightened. The band clamps can include projections extending from an outer surface the...
05/10/2005
6886526Air delivery apparatus for an internal combustion engine
An air delivery device for use in delivering air from the outlet of a turbocharger to a carburetor. The device has an intake passage extending from an inlet through an appended portion extending to an outlet. A flow divider extends diametrically through the passage ...
05/03/2005
6880523Measurement of engine cylinder induction air quantity
An engine cylinder induction air quantity measuring apparatus includes a controller to calculate an intake manifold inside air quantity of air in an intake manifold of the engine, from a sensed intake air quantity by performing a balance calculation to calculate a b...
04/19/2005
6868813Connecting piece
An elastic connecting piece (1) is mounted between a carburetor (4) and an inlet channel (3) of an internal combustion engine (2). The engine (2) is especially an engine of a portable handheld motor-driven work apparatus such as a ...
03/22/2005
6595175Carburetor spacer
A carburetor spacer for installation between a carburetor and an intake manifold which effects increased horsepower in engine operation. More specifically, this invention relates to a carburetor spacer having a particular shape such that improved air/fuel...
07/22/2003
6536395Membrane carburetor arrangement in a work apparatus having an internal combustion engine
The invention is directed to a carburetor arrangement in a work apparatus having an internal combustion engine (2). The inlet channel (7) of the engine is connected via a connecting tube (8) to the intake channel section (9) of the membrane carburetor (4)...
03/25/2003
6382160Internal combustion engine having a carburetor
The available space within the apparatus housing (2) in the portable handheld work apparatus is limited so that the individual components have to be accommodated in a tight space. In work apparatus having internal combustion engines, this means that the c...
05/07/2002
6263851Air inlet device for watercraft engine
An air inlet device for an engine powering a water propulsion device of a watercraft, the watercraft having a hull defining an engine compartment in which the engine is positioned, is disclosed. The engine has a body defining at least one combustion chamb...
07/24/2001
6260536Intake passage device for an internal combustion engine
An intake passage device is provided for an internal combustion engine having carburetor communicated with a connecting projection of an intake port of a cylinder of the engine, wherein the diameter of the connecting projection becomes smaller toward the ...
07/17/2001
6209502Intake manifold with multiple stage ram induction
An intake manifold for a four-cycle internal combustion engine with multiple stages to reduce imbalances in volumetric efficiency and air/fuel ratio. The intake manifold utilizes at least two ram stages coupled by a plenum chamber. The first stage include...
04/03/2001
6142842Manifold arrangement for outboard motor
An outboard motor having a multi-cylinder four-cycle, internal combustion engine as a power plant. An improved crankcase ventilating system is provided wherein the camshaft chambers and then to the intake system through an extended conduit passing over th...
11/07/2000
6029639Fuel supply system for a watercraft
A fuel system is provided with an accelerator pump. The accelerator pump has a single influent port and multiple effluent ports. The single influent port draws fuel from a single charge former into a fuel chamber of the accelerator pump. An operational li...
02/29/2000
6019078Manifold for outboard motor
An intake manifold for an engine powering a water propulsion device of an outboard motor is disclosed. The engine has first and second combustion chambers and an intake system for delivering a fuel and air charge to each combustion chamber. The intake sys...
02/01/2000
6016782Accelerating pump for watercraft engine
A fuel increasing mechanism for supplying fuel to an engine positioned in an engine compartment defined by a hull of a watercraft is disclosed. The engine is arranged to power a water propulsion device associated with the watercraft and has a body definin...
01/25/2000
6000371Accelerating pump for watercraft engine
A fuel increasing mechanism for supplying fuel to an engine positioned in an engine compartment defined by a hull of a watercraft is disclosed. The engine is arranged to power a water propulsion device associated with the watercraft and has a body definin...
12/14/1999
5915365Combined system using a vaporous fuel mixture energy source and an internal combustion engine and method therefor
A combined system and method is shown and described which uses a vaporous fuel mixture energy source comprised of air and a vaporous fuel as a source of fuel for an internal combustion engine. This mixture of air and vaporous fuel is injected into each on...
06/29/1999
5850813Split intake manifold, structure, installation and method
A substantially Y shaped split intake manifold is disclosed and also a method of connecting this manifold having fuel-air outlet conduits to a plurality of internal combustion engine cylinder inlet ports. The method comprises the steps of applying a layer...
12/22/1998
5809960Intake pipe in an internal combustion engine with carburetor
An intake pipe for absorbing vibrations of an internal combustion engine to prevent the transfer of the vibrations to a carburetor. The intake pipe includes an intake pipe body made of aluminum which is connected to an outlet portion of a carburetor. An i...
09/22/1998
5738059Quick disconnect coupling
A quick disconnect coupling is disclosed for releasably interconnecting first and second fluid flow members each having a fluid opening. The coupling includes a base member having a bottom surface, an annular attachment collar defining an inner fluid port...
04/14/1998
5699763Air intake system for a marine engine
An air intake box for a four-stroke marine engine. The air box is generally U-shaped in configuration, including a lower section that is connected to the carburetor throat. The lower section extends forwardly from the carburetor and merges into an upper s...
12/23/1997
5645026Internal combustion engine for a portable handheld work apparatus
The invention relates to an internal combustion engine for a portable handheld work apparatus such as a motor-driven chain saw or the like. The internal combustion engine includes a cylinder defining a combustion chamber and having an inlet passage for co...
07/08/1997
5619960Spacing block
The present invention relates to a spacing device which is adapted to be interconnected to the intake manifold of an internal combustion engine. This device acts to increase the distance incoming air travels before it enriches the fuel mixture. This incre...
04/15/1997
5575250Quick disconnect coupling for fluid flow connections
A quick disconnect coupling is disclosed for releasably interconnecting first and second fluid flow members each having a fluid opening. The coupling includes a base member having a bottom surface, an annular attachment collar defining an inner fluid port...
11/19/1996
5494011High-rise intake manifold for performance engines and method for manufacturing same
An intake manifold for a combustion engine is provided. The intake manifold has a body with a front end, a back end, a top and a bottom. The bottom has a first angled portion, a second angled portion and a horizontal portion located therebetween. The inta...
02/27/1996
5447129Intake insulator
An adiabatic intake insulator inserted into a portion for connecting a carburetor to a small two-cycle gasoline engine or the like in which the generation of cracks due to stress concentration when bolts are fastened are restrained and the looseness of th...
09/05/1995
4930461One-piece lost foam pattern for an intake manifold
Disclosed herein is a one-piece foam pattern for an intake manifold for a two cycle internal combustion engine, which pattern comprises a first surface for providing an intake manifold surface adapted to engage an engine block surface and having therein a...
06/05/1990
4905636Anti-puddling turbulence inducing cylinder head intake port and manifold
An intake manifold and cylinder head intake passageway for an air-cooled internal combustion engine. The manifold is substantially S-shaped and generally vertically oriented and communicates a carburetor having a horizonal bore with an overhead valve cyli...
03/06/1990
4356798Intake system for use in internal combustion engine
An internal system for use in an internal combustion engine which includes a carburetor, a throttle valve and a check valve. A supplemental chamber is connected to an intake passage adapted to introduce therethrough air-fuel mixture from the throttle valv...
11/02/1982
4231329Apparatus for atomizing fuel in an internal combustion engine
An apparatus for improving atomization of fuel in an internal combustion engine, which apparatus has a pressure accumulation chamber connected to an intake passageway of the engine via a one-way valve and a first passageway of large flow area. The pressur...
11/04/1980
4153015Carburetor adapter for multicylinder engines and manifold therefor
Disclosed is a manifold and carburetor system especially for motorcycles having a plurality of cylinders so that each cylinder can be assured of uniform fuel input. Balancing means in the manifold uniformly distributes a fuel charge to the plural cylinder...
05/08/1979
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