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| Number | Title | Issue Date |
| 7370620 | Intake manifold assembly having short compact runners and methods of making same An air intake manifold assembly for use with an internal combustion engine includes a plenum portion and a runner assembly mounted to the plenum portion. The runner assembly has a flange disposed between an air intake portion and an air outlet portion. ... | 05/13/2008 |
| 7361201 | Air cleaner device An air cleaner device for exchanging an element without permitting dust and dirt collected between the element and an air guide member in a clean side to fall and for smoothly permitting intake air to be supplied to the engine. An air cleaner device includes a cylin... | 04/22/2008 |
| 7284508 | Intake air and carburetor heating arrangements for V-twin engines A V-twin engine having a crankcase and a pair of cylinders defining a V-space therebetween, wherein the V-space is substantially enclosed, and a carburetor is positioned within the V-space. An intake air preheating arrangement supplies heated intake air to the carbu... | 10/23/2007 |
| 7273026 | Roller follower body The present invention relates to a roller follower, comprising an outer surface, enclosing a first cavity, a second cavity, and a transition opening, wherein the first cavity includes a first inner surface configured to house a cylindrical insert the second cavity i... | 09/25/2007 |
| 7128039 | Engine air induction arrangement and method Chaotic air flow structures in internal combustion engine manifolds may lead to poor combustion performance and hence undesirable emissions such as visible smoke. Manifolds with flow characteristics compromised by other design requirements are especially prone to th... | 10/31/2006 |
| 7107962 | Carburetor 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 |
| 7089921 | Intake manifold for internal combustion engine An intake manifold (1) of a multi-cylinder internal combustion engine comprises a single pipe portion (4), a collector (5) connected to the pipe portion (4), and a plurality of branch pipes (6) branching from the collector (5 | 08/15/2006 |
| 7011064 | Intake manifold An intake manifold is provided that comprises a plurality of intake ducts, a surge tank, a vacuum chamber, and a negative pressure check valve. The negative pressure check valve enables negative pressure induced in the surge tank to flow into the vacuum chamber. Eac... | 03/14/2006 |
| 6647940 | Engine intake manifold An engine intake manifold is provided that can prevent fuel loss by promptly supplying to an engine the fuel that has collected on the base within an intake air distribution box. The engine intake manifold includes an intake air distribution box having an... | 11/18/2003 |
| 6209502 | Intake 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 |
| 5850813 | Split 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 |
| 5813384 | Intake system arrangement for V-type engine An air intake system for an internal combustion engine has a vertical crankshaft and a pair of substantially horizontally disposed cylinders that extend outward from a crankcase to form a V-space therebetween. The air intake system includes an air inlet t... | 09/29/1998 |
| 5809960 | Intake 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 |
| 5755203 | Charge-forming system for gaseous fueled engine A number of embodiments of gaseous fueled internal combustion engines in which the charge former has no throttle valve in it. A separate throttle body is provided downstream of the charge former in which the flow controlling throttle valve is positioned s... | 05/26/1998 |
| 5494011 | High-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 |
| 5174251 | S divider intake Herein presented is a device for improving the fuel distribution performance of an automobile's intake manifold. The device is a partition that divides the carburetor barrels between the combustion cylinders. The partition divides the manifold. Certain ba... | 12/29/1992 |
| 5042435 | Manifold for an internal combustion engine using multiple carburetors An intake manifold for twin carburetors or twin air control throat bodies for a motorcycle or the like having one or more cylinders where the physical space is limited comprising a hollow central plenum chamber and hollow carburetor or air control throat ... | 08/27/1991 |
| 4993369 | Internal combustion engine A two-stroke internal combustion engine comprising an engine block including a first exterior surface portion, a second exterior surface portion spaced from the first portion and having therein a crankcase-defining cavity, and a combustion air passage ext... | 02/19/1991 |
| 4967704 | Air intake device for engine of marine propulsion boat Two embodments of induction devices for V-type engines wherein a compact configuration is achieved by having the inlet for the induction device disposed between the area defined by the associated induction devices of the engine.... | 11/06/1990 |
| 4934342 | Intake manifold for internal combustion vee-engine and manufacturing method of intake manifold An intake manifold is provided which communicates with left and right intake passages located respectively in left and right cylinder banks of an internal combustion vee-engine. The intake manifold comprises a single inlet passage portion, and two branch ... | 06/19/1990 |
| 4872424 | Intake manifold with removable baffles An intake manifold apparatus for use with a combustion engine has a lower manifold unit with lower runner portions and a lower plenum portion and an upper manifold unit with an intake manifold opening surrounded by a carburetor mounting flange, upper runn... | 10/10/1989 |
| 4870928 | Two-cylinder engine A two-cylinder engine comprises a first cylinder and a second cylinder adapted to perform explosions at such timing that an interval from explosion in the first cylinder to explosion in the second cylinder becomes shorter than an interval from the explosi... | 10/03/1989 |
| 4862839 | Multiport manifold A manifold is provided for a multicylinder engine, particularly a motorcycle engine, wherein separate, independent passages are provided to connect separate carburetors to individual cylinder inlet ports. A plurality of such passages are provided in a sin... | 09/05/1989 |
| 4829943 | V-type multiple cylinder engine An intake apparatus for a V-type multiple cylinder engine in which cylinder rows are arranged as a pair and intake ports are disposed to face each other on an inside thereof. The intake apparatus comprises an intake manifold having a collecting section in... | 05/16/1989 |
| 4697557 | V-type internal combustion engine A V-type internal combustion engine in which cylinders each including a cylinder skirt portion projecting into a crankcase are arranged in a V-shape, a governor device is disposed within the crankcase, central axes of the cylinders are offset from each ot... | 10/06/1987 |
| 4671216 | Air intake device for a V-type engine An air inlet means for use with the two cylinder internal combustion V-type engine. The air inlet device includes a carburetor, an air cleaner and an air associated with each cylinder. Such carburetors and inlet pipes are arranged so as to be positioned b... | 06/09/1987 |
| 4592311 | Intake system for two-cycle multi-cylinder engines A motorcycle having a V4 crankcase compression, two-cycle internal combustion engine having an improved, compact induction system. The induction system for the cylinders of one bank discharges directly into the crankcases of those cylinders and is fed wit... | 06/03/1986 |
| 4545331 | Auxiliary air supply apparatus for an internal combustion engine In a V-type internal combustion engine, an auxiliary air supply apparatus includes an auxiliary air distribution pipe which communicates directly to two or more mutually independent chambers in the intake system of the engine. This auxiliary air distribut... | 10/08/1985 |
| 4487170 | Carburetor device for V-type internal combustion engines A carburetor device for V-type internal combustion engines having first and second cylinders disposed in a form like V and first and second carburetors disposed between those cylinders and adapted to supply a gaseous mixture to the associated cylinders in... | 12/11/1984 |
| 4463711 | Carburetion system for a V-type internal combustion engine An improved carburetion system for a V-type internal combustion engine including a first carburetor and a second carburetor disposed in a space between a first cylinder and a second cylinder arranged in the form of V-shape and adapted to supply an air-fue... | 08/07/1984 |
| 4455975 | V-Type multi-cylinder internal combustion engine A V-type multi-cylinder internal combustion engine has a horizontal joint plane between the cylinder block and the intake manifold. Cylinder heads are mounted on the two banks of cylinders and each cylinder head has an inclined surface cooperating with a ... | 06/26/1984 |
| 4445466 | Carburetion system for V-type internal combustion engines A carburetion system for V-type internal combustion engine having a first carburetor and a second carburetor disposed in a space between a first cylinder and a second cylinder arranged in a form like V and adapted to supply air-fuel mixture to respective ... | 05/01/1984 |
| 4418676 | Carburetion system for a V-type internal combustion engine An improved carburetion system for a V-type internal combustion engine including a first carburetor and a second carburetor disposed in a space between a first cylinder and a second cylinder arranged in the form of V-shape and adapted to supply an air-fue... | 12/06/1983 |
| 4391261 | Carburetor actuating system for V-engines A carburetor actuating system for two carburetors (5a, 5b) in V-shaped space (4) between two cylinders (2a, 2b) of a V-engine such that drafting directions of the respective carburetors are opposite to each other. One carburetor (5b) is controlled by a ca... | 07/05/1983 |
| 4381738 | Engine with additional shared flow control runner for two cylinders Adjacent expansible chambers of an engine are provided with an intake runner set employing at least three runner passages conducting the working fluid from a common plenum to the expansible chambers, with at least one of the runners only serving one of th... | 05/03/1983 |
| 4279224 | Convertible intake manifold A convertible intake manifold for a V-block engine has a base member and an interchangeable center runner member isolated therefrom. The base member has a coolant crossover section at one end; a distributor boss section at a second end opposite the one en... | 07/21/1981 |
| 4192270 | Fuel system A fuel system for an internal combustion engine in which an air-gasoline mixture from a carburetor is fed through a plurality of chambers and through a plurality of curved, horizontally positioned, heated tubes which output the mixture to the intake manif... | 03/11/1980 |
| 4100905 | Fuel vaporizer A hollow intake manifold-type body is provided for mounting between the cylinder banks of a V-type engine and the hollow body defines a vertically oriented inlet passage, a horizontally enlarged lower chamber into whose upper central portion the lower end... | 07/18/1978 |
| 4098250 | Suction line formation of combustion engines On the suction line (10) and on top of it of an internal combustion engine, particularly an Otto motor, between the carburetor and the inlet valve of the cylinder head, a vortex chamber (12) is placed providing for an element (14) producing vortices and r... | 07/04/1978 |
| 3972324 | Fuel induction system A fuel induction system for a spark-ignited multicylinder internal combustion engine including a carburetor, a mixing chamber and an intake manifold. The carburetor includes a primary barrel which connects initially to an inlet in the mixing chamber. An o... | 08/03/1976 |
