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| Number | Title | Issue Date |
| 6026769 | Mechanical direct cylinder fuel injection A two-stroke internal combustion engine having at least one cylinder with a combustion chamber defined between the cylinder head and a reciprocating piston, and a carburetor which delivers a rich fuel and air mixture to a compressor with a reciprocating p... | 02/22/2000 |
| 6021753 | Adhesively bonded plastic automotive air intake assembly A bonded multi-piece plastic automotive air intake assembly having first and second housing members that include a 3-dimensional mating surface. The first member has a continuous first perimeter edge and the second member has a continuous second perimeter... | 02/08/2000 |
| 5894821 | Air valve system combined with a distribution chamber According to the invention, the valve comprises a cylindrical body (21) in a housing (21), for receiving one end of a return spring while the end is in contact with the case. The valve also includes two ribs (22, 23) for connection to a sealing plate (25)... | 04/20/1999 |
| 5890464 | Variable-capacity intake system for a vehicle internal combustion engine A variable-capacity intake system for a vehicle internal combustion engine, and of the type presenting at least one intake conduit for each cylinder of the engine; a capacity in which said intake conduit terminates and which is connected to air supply mea... | 04/06/1999 |
| 5890465 | Internal combustion engine with optimum torque output An improved engine output shaft includes a crankpin assembly for operatively connecting the shaft to each reciprocating piston for translating the reciprocating motion of each piston to rotary motion of the shaft through a leverage arm between the axis of... | 04/06/1999 |
| 5890462 | Tangential driven rotary engine A tangential driven rotary engine (10) comprising an engine block (12) having a plurality of cylinder combustion chambers (14) radially positioned therein. A plurality of pistons (16) are each movable and disposed within each cylinder combustion chamber (... | 04/06/1999 |
| 5890476 | Fuel delivery nozzle The fuel injection nozzle (10) includes a nozzle tip (16) that is formed in the shape of a substantially symmetrical double-sided wing having a leading edge (40) for facing the oncomning air stream passing through the air inlet manifold of an internal com... | 04/06/1999 |
| 5884598 | Diesel engine intake port An intake port of a diesel engine comprises a straight part, a winding part and a cylindrical part. A connecting port connecting the winding part with the cylindrical part is formed at a height H from the roof of the combustion chamber. H=Rt.multidot.�... | 03/23/1999 |
| 5881703 | Method of determining the composition of fuel in a flexible fueled vehicle The present invention provides a flexible fuel compensation system for controlling operating parameters of an internal combustion engine based on a learned value of the percent alcohol content of the fuel using an oxygen feedback system. The methodology d... | 03/16/1999 |
| 5881685 | Fan shroud with integral air supply A shroud for an axial blade fan provides a circumferential, axially directed flow of air between the fan blade tips and the shroud to improve fan efficiency. The shroud preferably includes a smaller, centrally disposed fan which is driven by an auxiliary ... | 03/16/1999 |
| 5878702 | Exhaust timing control device for two-cycle engine An exhaust port controlling arrangement for an internal combustion engine having both main and auxiliary exhaust ports. A main control valve cooperates with the main exhaust port for varying the timing at which the exhaust port opens in response to engine... | 03/09/1999 |
| 5878703 | Two stroke cycle engine An improved two stroke cycle engine is disclosed. The engine has an intake port for passing air into a cylinder of the engine and has a piston within the cylinder for reciprocal movement between a top dead center position and a bottom dead center position... | 03/09/1999 |
| 5878701 | Cylinder head for an internal combustion engine and method of adjustably establishing the volume of a combustion chamber therein A cylinder head has a head portion for attachment to an engine cylinder of an internal combustion engine, and a combustion chamber dome is adjustably received in a central aperture of the head portion. External circumscribed threads on the combustion cham... | 03/09/1999 |
| 5878709 | Ignition switch having a positive off and automatic on A positive off and automatic on ignition stop switch and electronic circuit for use in an internal combustion engine. The circuit that allows for normal operation of the engine in an unbiased state. When it is desired to turn the engine off, a stop switch... | 03/09/1999 |
| 5873339 | Bidirectionally reciprocating piston engine The present invention relates to a bidirectionally reciprocating piston engine comprising (a) a cylinder block having a cylinder and a crankcase formed at the base of the cylinder, (b) a bidirectional type piston body having a piston accommodated in each ... | 02/23/1999 |
| 5873343 | Diesel engine emergency shutoff device and method An improvement for diesel engine emergency shutoff devices and method for intake air-flow shutoff valves. The device includes tubing connecting the engine's exhaust manifold with the intake manifold at a location down stream from the shutoff valve with a ... | 02/23/1999 |
| 5870988 | Multi-cylinder engine intake manifold, intake control unit using that intake manifold and manufacturing method An intake manifold is manufactured by assembling resin-molded parts without using any cores, so that compactness, light-weight, low-cost and improvement of engine performance can be achieved. A inner pipe is fit-inserted into a cylindrical tubular part of... | 02/16/1999 |
| 5870980 | Stepped piston internal combustion engine A stepped-piston, internal-combustion engine includes at least one cylinder, each cylinder having a working part of lesser diameter defined by a cylindrical wall and a pumping part of greater diameter, a piston slidable in each cylinder, a receiver which ... | 02/16/1999 |
| 5862790 | Method of generating turbulence with intra-cycle cooling for spark ignition engines A method of operating a four stroke, spark ignition, high compression ratio, internal combustion engine including at least one intake valve (30), exhaust valve (32) and charging valve (36) per cylinder (16). Each of the valves is actuable by a variable ti... | 01/26/1999 |
| 5857436 | Internal combustion engine and method for generating power An internal combustion engine includes a compression cylinder having an air inlet and outlet, a conduit extending from the compression cylinder air outlet, an expansion cylinder of larger diameter than the diameter of said compression cylinder and having ... | 01/12/1999 |
| 5857450 | Low emission two cycle engine using two segment piston An internal combustion engine is provided with a top hat piston disposed in a cylinder having first and second portions of different diameters. The piston, with first and second portions of different diameters, is disposed within the cylinder and defines ... | 01/12/1999 |
| 5857449 | Two-cycle internal combustion engine A two-cycle internal combustion engine provided with at least one fuel injection nozzle, wherein the fuel injection nozzle is provided with a heating element for heating the fuel so as to cause the fuel to undergo a phase change before the fuel is injecte... | 01/12/1999 |
| 5857435 | Two cycle engine A two stroke cycle internal combustion engine (10) is provided which has a one-piece cylinder housing (14) removably secured to a valve drive housing (12) at a top section thereof and a crank housing (16) at a bottom section. The overall combination of th... | 01/12/1999 |
| 5855193 | Induction system for outboard motor A number of embodiments of induction systems for outboard motors wherein the induction system can be tuned to provide good performance under high low speed by utilizing two plenum chambers and a control for controlling the effective length of the intake p... | 01/05/1999 |
| 5855189 | Exhaust controller for internal combustion engine An exhaust controller includes an exhaust control valve. The exhaust controller is capable of adjusting an exhaust timing of a spark ignition type, two stroke internal combustion engine depending upon the rotational speed of the engine. The exhaust contro... | 01/05/1999 |
| 5852991 | Oil pan assembly for internal combustion engine An oil pan for an internal combustion engine is an assembly of a tank member defining a deep interior space section for storing a lubricating oil, and a main frame member having a shallow bottom defining a shallow interior space section for collecting the... | 12/29/1998 |
| 5845618 | Engine for transport vehicle A number of embodiments of vehicles such as scooters that are powered a compact, high performance, four-cycle crankcase compression supercharged internal combustion engine. The engine is provided with two throttle valves, one on the intake side and one on... | 12/08/1998 |
| 5842447 | Cylinder block of an internal-combustion engine A cylinder block of an internal-combustion engine of an open-deck construction, in which the cooling water jacket and the oil jacket between the cylinder tube and the cylinder block housing are separated from one another by a connection web which connects... | 12/01/1998 |
| 5839406 | Balance shaft seal retainer A balance shaft seal retainer is provided having a cut out formed therein. The balance shaft seal retainer further includes at least one aperture formed therein. At least one bolt is included for being situated within the aperture of the retainer and scre... | 11/24/1998 |
| 5839408 | Exhaust control apparatus for a spark-ignition two-stroke internal combustion engine An exhaust control apparatus for a high level engine output and engine efficiency for obtaining a stable operation from a low speed to a high operating speed in a spark-ignition two-stroke internal combustion engine with an exhaust timing that can be adju... | 11/24/1998 |
| 5839399 | Cartridge-type rotary valve A two-way rotary manifold-selecting valve forming a combustion chamber for an internal combustion engine has a frusto-conical rotor nestingly residing in a housing having a frusto-conical passage communicating with the base of the housing. The housing has... | 11/24/1998 |
| 5839405 | Single/multi-chamber perforated tube resonator for engine induction system An engine induction system resonator that is designed to minimize emitted engine noise. The resonator includes an enclosed tube that has a first diameter and that defines a resonant chamber therein. The resonator also includes a pipe that has a second dia... | 11/24/1998 |
| 5839398 | Power steering fluid temperature control An engine cooling system (16) of a vehicle (12) includes a coolant de-gas bottle (30) which contains a body of liquid engine coolant (52). The vehicle (12) also has a second fluid system such as a fluid power assist steering system (70) or an engine lubri... | 11/24/1998 |
| 5836272 | Cylinder head of engine This invention provides a cylinder head capable of efficiently cooling the portion at which a large number of valve ports gather. The present invention provides a cylinder head (20) of an engine equipped with suction and exhaust valve ports (3a, 5a) insid... | 11/17/1998 |
| 5836290 | Apparatus and method for gasifying volatile liquid fuels A fuel system (10,10') including apparatus (12) for gasifying volatile liquid fuels by introducing dried air and a volatile liquid fuel into a round mixing chamber (46) for circular flow and mixing. Liquid fuel that flows downwardly to a lower extremity (... | 11/17/1998 |
| 5836577 | Bill handling machine A bill handling machine is provided with a bill stacking device including a bill press member whose leading end portion is swingably supported and which is adapted to guide bills downwardly, a solenoid for pressing the leading end portion of the bill pres... | 11/17/1998 |
| 5836576 | Apparatus for removing copies and/or documents from a machine An apparatus for removing copies and/or documents from a machine has a catch and removal tray (2) which can be extended telescopically out of the machine (1). The catch and removal tray (2) consists of a fixed section (3) inside the machine (1) and a mova... | 11/17/1998 |
| 5836273 | Reciprocating machine A reciprocating machine includes a cyclical kinematic chain in which power is transferred between translational and rotational motion. The kinematic chain includes a piston (2) reciprocating in a cylinder (1), connected by two connecting rods (9, 10) to d... | 11/17/1998 |
| 5829393 | Free-piston engine A free-piston engine comprises a combustion part (1), a hydraulic control system (2), an energy consumption system and an engine control system. The combustion part comprises a combustion cylinder with at least one combustion piston (4). The hydraulic con... | 11/03/1998 |
| 5829403 | Multi-cylinder engine intake manifold and intake control unit using the intake manifold An intake manifold providing a plurality of manifold passages, for supplying air toward engine cylinders arranged on a periphery of a pipe member, in the same number of engine cylinders in an axial direction, of which a plurality of intake passage inlets ... | 11/03/1998 |
