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| Number | Title | Issue Date |
| 7395795 | Outboard motor An outboard motor is mounted on a hull and has an engine disposed in an upright position in a cowling so that a crankshaft thereof extends generally vertically during cruising. An embodiment of the motor includes a first surge tank disposed on the opposite side of a... | 07/08/2008 |
| 7370622 | Active induction system tuning with multiple valves An induction system is designed for an engine that includes a manifold having a plenum in fluid communication with primary runners. A plenum valve is arranged between first and second chambers of the plenum that are respectively in fluid communication with first and... | 05/13/2008 |
| 7044117 | Positive crankcase ventilation system Blow-by gas supplied from a cylinder head cover is re-supplied to an engine through runners of an intake manifold via a channel portion in communication with a plenum of an intake system. ... | 05/16/2006 |
| 7021262 | Undercowl plenum chamber with preferential air paths An air intake system for an outboard motor provides parallel air flow paths between an opening formed in a cowl of the outboard motor and an air intake manifold of an engine under the cowl. A first air path flows in a relatively direct path between the opening in th... | 04/04/2006 |
| 7017562 | Air intake system for a vehicle Because the PCV channel for guiding blow-by gas to a plenum is formed in an intake manifold, the blow-by gas can be equally supplied to respective combustion chambers. In addition, since a PCV nipple is mounted on the outermost intake runner that has a relatively hi... | 03/28/2006 |
| 6978755 | Air intake apparatus of engine In an air intake apparatus of an internal combustion engine, disassembling a surge tank made of resin with an intake air control valve into divided pieces, and bonding the divided pieces by vibration adhesion, for preventing the intake air control valve from breakin... | 12/27/2005 |
| 6979130 | Bearing device The aim of the invention is to improve a bearing device for rotatably receiving a control element (2) in lines which guide mediums and pertain to a combustion engine with bearing receptacles (10, 11), in such a way that the assembly thereof is simplifi... | 12/27/2005 |
| 6955149 | Variable intake manifold with trimode resonance tuning control valve A simplified variable intake manifold is disclosed for use with an internal combustion engine. The manifold utilizes a single valve actuator to vary the resonant frequency of a pair of plenums. The two plenums are joined by first and second communication passages of... | 10/18/2005 |
| 6928980 | Control device for spark-ignition engine A control device switches an engine between normal operation mode and special operation mode. In the normal operation mode, an independent cylinder configuration is formed to produce combustion independently in individual cylinders. In the special operation mode, a ... | 08/16/2005 |
| 6896566 | Personal watercraft A watercraft comprises two air-intake boxes 5, 8 mounted in air-intake pipes 6, 9 of the engine 1. The air-intake box 5 is provided on one side of the engine 1 and located lower than a waterline of the watercraft and the air-intake... | 05/24/2005 |
| 6889672 | Air intake arrangement for an internal combustion engine An air intake apparatus for supplying air to an internal combustion engine, comprises a unitary hollow enclosure, a motor vehicle battery, an air filter and an air compressor which when activated compresses air supplied to the engine. The enclosure houses the batter... | 05/10/2005 |
| 6796280 | Intake air control valve An intake air control valve of the invention has a valve body and a valve holder, and is attached to a communication hole on a partition wall separating a surge tank chamber within a surge tank of a multiple cylinder internal combustion engine by fitting and inserti... | 09/28/2004 |
| 6557511 | Suction system A suction system has an arrangement for utilizing resonance effects and is suitable for an internal-combustion engine having opposed cylinder banks. The suction system has a resonance container which has boundary walls. On the one hand, the resonance cont... | 05/06/2003 |
| 6412471 | Throttle body system with integrated electronics A throttle body and an air control system that integrates the electronic engine control modules, sensors, actuators, and associated wiring on a throttle body is disclosed. In one version of the invention, there is provided a throttle body including a thro... | 07/02/2002 |
| 5967107 | Flap valve for intake system for an internal combustion engine An intake system for internal combustion engine comprises a separate intake manifold for each engine cylinder with a first manifold portion extending between the intake valves of the respective cylinder and a first air distribution chamber, and a second m... | 10/19/1999 |
| 5921212 | Intake system for multi-cylinder combustion engines An intake system for internal combustion engines with multiple cylinders, comprising a first air distribution chamber, one separate inlet pipe for each engine cylinder, which inlet pipes extend between the first distribution chamber and the respective inl... | 07/13/1999 |
| 5653202 | Intake manifold system An intake manifold system 10 is described for a multi-cylinder four stroke spark-ignition internal combustion engine 12. Each cylinder has at least one intake port 20, each intake port 20 being connected at one end to the combustion chamber by at least on... | 08/05/1997 |
| 5490484 | Air intake system of an internal-combustion engine An air intake system has two resonance chambers coupled together by connecting pipes. The resonance chambers are connected to the cylinders by individual intake pipes. A further common chamber is coupled by means of resonance pipes to the resonance chambe... | 02/13/1996 |
| 5088454 | Intake system for automotive engine An improved induction system for an internal combustion engine that improves power throughout the entire speed and load ranges by including two plenum chambers, having separate intake passage that serve the cylinders of the engine. One plenum chamber and ... | 02/18/1992 |
| 5018485 | Intake system for automative engine An improved induction system for an internal combustion engine that improves power throughout the entire speed and load ranges by including two plenum chambers, having separate intake passage that serve the cylinders of the engine. One plenum chamber and ... | 05/28/1991 |
| 4838215 | Inertia supercharging induction system for multi-cylinder internal combustion engine In order to minimize the supercharging effect from the cylinder to cylinder and to maximize the efficiency of the inertia supercharging effect over essentially the whole engine speed range, first and second elongate collectors which communicate with separ... | 06/13/1989 |
| 4794886 | Intake device of an internal combustion engine An intake device of an engine comprising a surge tank. The interior of the surge tank is divided into a first interior chamber and a second interior chamber by a separating wall. The separating wall has a cutaway portion into which the separating wall por... | 01/03/1989 |
| 4766853 | Intake passage for multi-cylinder engine An improved induction system for a V type engine that is tuned for substantially all running conditions and which is nevertheless compact in construction. The system includes a pair of plenum chambers each disposed adjacent one of the cylinder heads of th... | 08/30/1988 |
| 4765285 | Intake system for internal combustion engine Several embodiments of induction systems for internal combustion engines wherein a first, relatively long intake passage and a second, relatively short intake passage, serve each combustion chamber. A throttle valve arrangement is incorporated so that the... | 08/23/1988 |
| 4727829 | Intake system for internal combustion engine Several embodiments of induction systems for an internal combustion engine wherein each cylinder is served by a pair of intake passages having significantly different lengths for tuning them for different engine running requirements. A throttle valve arra... | 03/01/1988 |
| 4722307 | Intake system for an electronic control fuel injection system for an internal combustion engine An intake system for an electronic control fuel injection system for a double overhead camshaft type internal combustion engine. The intake system has a surge tank connected via a connection pipe to a throttle body in which a throttle valve is arranged. A... | 02/02/1988 |
| 4715329 | Induction system for internal combustion engine In an induction system for an internal combustion engine having two groups of cylinders of which firing orders are respectively discontinuous, a groove is formed in a joining end face of a collector unit to be joined with a joining end face of an intake m... | 12/29/1987 |
| 4368698 | Intake system for internal combustion engines Several embodiments of induction systems for internal combustion engines that improve charging efficiency over a widespread range, particularly at the lower speeds of the engine. Each embodiment includes a plurality of plenum chambers each of which commun... | 01/18/1983 |
