Matches 1 - 50 out of 158 1 2 3 4 >
Match Document Document Title
7484482 Valve assembly for a two-stroke engine  
A valve assembly suitable for use with an exhaust port of a two-stroke internal combustion engine is disclosed. The valve assembly has a valve actuator including a diaphragm and a pressure chamber,...
7367295 Exhaust control valve for internal combustion engine  
An exhaust valve assembly for a two stroke internal combustion engine having a cylinder with at least one main exhaust port and one auxiliary exhaust port is disclosed. The assembly comprises a...
7258087 Air intake porting for a two stroke engine  
A two stroke engine of a particular configuration can have its power output increased by running bigger pistons and using ports in the piston skirt through which to conduct compressed air within...
7243490 4-cycle engine for motorcycle  
A 4-cycle engine for a motorcycle has a secondary-air supplier for supplying secondary air to exhaust ducts. The engine includes a recess, which is depressed toward the engine, on a cylinder-head...
7213544 Exhaust-outlet control for 2-stroke engine  
An exhaust valve assembly for a two stroke internal combustion engine having a cylinder with at least one main exhaust port and one auxiliary exhaust port is disclosed. The assembly comprises a...
7198011 Internal combustion engine  
There is provided a two stroke internal combustion engine comprising a cylinder and a piston. The cylinder has a cylinder head, a wall and a crankcase. The wall extends between the cylinder head...
7152557 Apparatus for adjusting an operational point of an engine  
An exhaust valve assembly may include a diaphragm connected to a restricting member. The diaphragm may be configured to change a position of the restricting member based on a pressure on a first...
7150273 Exhaust manifold arrangement  
A passageway is provided between branches of a multi-branch exhaust manifold to reduce the amount of backflow (iEGR) into the cylinders at low engine speeds. The passage is located upstream of the...
7146806 Internal combustion engine cylinder and muffler assembly with catalytic converter  
A two cycle internal combustion engine cylinder having a piston chamber. The cylinder includes transfer ports; and an exhaust port divided into at least two sections. A first one of the sections...
7131406 Two-cycle engine having scavenging  
A two-cycle engine in a portable, manually-guided implement, such as a power chain saw, a cut-off machine, a brush cutter, or the like, is provided. The cylinder has a combustion chamber that is...
7100550 Two-stroke engine transfer ports  
A two-stroke internal combustion engine including a cylinder; and a piston movably mounted in the cylinder. The cylinder includes an exhaust port and transfer ports. The transfer ports include a...
7000594 Electronic control unit for two-cycle internal combustion engine with exhaust control valve  
An electronic control unit for controlling a fuel injection amount of a two-cycle internal combustion engine with an exhaust control valve wherein the electronic control unit comprises an injection...
6945211 Cylinder head of an internal combustion engine  
In a cylinder head of an internal combustion engine, a plug hole for mounting an ignition plug is formed along a cylinder axis and an intake port and an exhaust port are respectively formed at both...
6895908 Exhaust timing controller for two-stroke engine  
A method and apparatus that permits engine system control such as exhaust valve timing without the use of separate load sensors from the output of a single engine timing sensor.
6886507 Exhaust valve for two-cycle engine  
An exhaust valve for a two-cycle engine. The exhaust valve includes a valve body and an actuator. The valve body, in turn, includes a valve insert and a shaft extending from the valve insert. A...
6874454 Two-stroke cycle for internal combustion engines  
A two-stroke cycle is applicable to classical internal combustion engines (piston-rod-crankshaft) as well as to engines with a two-sided piston. At least one pair of cylinders of which one is a...
6810839 Control device for controlling control motor of internal combustion engine  
The control device for a control motor of an engine has: a control information output unit for detecting an operational state of the engine as control information; target value computing unit for...
6808034 Snowmobile exhaust system  
A snowmobile has a frame construction that defines a recess above a drive unit. The recess is formed by a horizontal member and a pair of vertical members. A portion of the exhaust system extends...
6807928 Control device for a control motor of an internal combustion engine  
The operational state of the engine is detected and the target value of the motor is computed corresponding to the operational state (step S 1 ); a current value of the motor is obtained (step S 2...
6802383 Snowmobile exhaust system  
A snowmobile has a frame construction that defines a recess above a drive unit. The recess is formed by a horizontal member and a pair of vertical members. A portion of the exhaust system extends...
6782850 Two stroke engine having reduced height pistons  
Modification to the current two-stroke cycle internal combustion engine, using reduced height piston constructed solidly with piston rods and having rotary valves installed in the transfer and...
6748908 Thermal exhaust throttle  
An exhaust throttling system for engines having individual cylinders with at least one exhaust port to exhaust combustion gases from the cylinder chamber, the system including at least one sleeve...
6647933 Electronic control unit for two-cycle internal combustion engine  
An electronic control unit for a two-cycle internal combustion engine including an exhaust control valve which adjusts exhaust timing, a valve controller which controls the exhaust control valve,...
6622671 Engine exhaust control  
A snowmobile is powered by an internal combustion engine. The engine has an exhaust timing control valve, a control unit and a generator. The control unit determines the positioning of the control...
6591606 Internal combustion engine as a drive engine in a portable handheld work apparatus  
The invention relates to an internal combustion engine and especially to a drive motor in a portable handheld work apparatus such as a motor-driven chain saw, cutoff machine or the like. The engine...
6588382 Two-cycle internal combustion engine  
A two-cycle internal combustion engine including: a cylinder; an exhaust opening provided in a portion, on one side in the peripheral direction, of the cylinder; a plurality of scavenging openings...
6481394 Control system for two-cycle engine  
A two cycle engine includes an exhaust control valve, which opens and closes an exhaust port, and a controller for controlling the exhaust valve. The controller is configured to increase the...
6427645 Exhaust gas control mechanism for a two-stroke engine  
An exhaust gas control mechanism for a two-stroke engine is provided. A first housing chamber is in communication with a discharge window of the cylinder of the engine, while a second housing...
6418890 Control assembly for exhaust timing control  
An arrangement for exhaust timing control by controlling the effective height of an exhaust port of a cylinder of a two-cycle internal combustion engine and comprising a control valve assembly...
6415748 Exhaust control system in two-cycle internal combustion engine  
It is intended to provide an exhaust control system in a two-cycle internal combustion engine capable of suppressing the occurrence of irregular combustion when an opening timing of an exhaust port...
6397795 Engine with dry sump lubrication, separated scavenging and charging air flows and variable exhaust port timing  
An engine is disclosed having an improved lubrication system and scavenging system. An oil sleeve is positioned between the cylinder and the crankcase, the sleeve having a bore sized to receive the...
6394049 Exhaust valve device for two-cycle engine  
A common drive shaft for first and second exhaust control valves is formed of a single piece. A first exhaust valve adjusting exhaust timing and a second exhaust valve adjusting a sectional area of...
6382176 Method for injecting and combusting fuel with a piston head having a top surface recess  
A method of controlling fuel injection flow in a cylinder of an internal combustion engine. A piston head of the engine is provided with a combined flow redirector and holding bowl recess extending...
RE37631 Exhaust timing control for a planing-type boat  
A two-cycle internal combustion engine for a watercraft that includes a cylinder block having a cylinder bore, a piston reciprocating in the cylinder bore and an exhaust port formed in the cylinder...
6352056 Exhaust valve actuator for a two cycle engine  
An exhaust valve actuation system utilizes pressurized air provided by an air compressor and controlled by signals from a controller, such as an engine control module. The pressurized air is...
6328004 Internal combustion engines  
An internal combustion engine has a positive displacement supercharger which can be used with particular advantage in an underpumping two stroke engine which is in the form of a valved diaphragm...
6273036 Exhaust control valve assembly for an engine  
An exhaust control valve assembly for a two-cycle engine includes a governor for moving an exhaust control valve in opening and closing directions to advance or retard a timing of opening of an...
RE37230 Two stroke cycle internal combustion engines  
A two stroke cycle engine 10 with an exhaust gas treatment catalyst. Separate reducing and oxidizing catalyst portions 126 and 127 are provided to treat different portions of the exhaust gas...
6244227 Valve assembly using pressurized medium for controlling operating conditions of a two-stroke engine  
A valve assembly located adjacent the cylinder structure of a two-stroke engine including a valve piston, a diaphragm and a restricting member. The valve assembly is adapted to vary the height of...
6227922 Exhaust timing control valve control arrangement  
An engine has an exhaust control valve which is moved by a control system according to a predetermined control strategy. The control system obtains data from sensors that help the control system to...
6227323 Exhaust control system for snowmobile engine  
A snowmobile comprised of a frame having a centerline in a front to rear direction, an engine supported by the frame, the engine having a body defining at least one combustion chamber and having a...
6216648 Internal combustion engine with pneumatically controlled variable exhaust valve  
An internal combustion engine has a variable flow passage, e.g. an exhaust passage, in communication with the cylinder of the engine. A valve is positioned in the passage, restricting the passage...
6213065 Two-cycle engine exhaust port regulator  
A two-cycle engine combustion cylinder exhaust port power regulator disposed to operate by opposing spring and pneumatic action so as to advance and withdraw a sliding tongue disposed,...
6189494 Exhaust timing control apparatus for two-cycle engines  
When an engine is operated at a low and medium speed range, since the combustion pressure introduced into a pressure chamber of a valve drive unit is relatively small, a control valve is projected...
6158215 Varible exhaust resonance chamber valve system for two-cycle engines  
A variable exhaust resonance chamber valve system for internal combustion engine. The engine includes a cylinder having an exhaust port with an axial extent along the axis of the cylinder...
6152092 Internal combustion engine  
Crankcase scavenged internal combustion engine (1) of two-stroke type, intended for a working tool, preferably a chain saw or a trimmer, and provided with a light-weight and compact muffler (2)....
6129059 2-stroke cycle internal combustion engine  
To provide a 2-stroke cycle internal combustion engine for a vehicle in which less blowoff of a gas mixture occurs in a combustion chamber, fuel consumption is low and high exhaust gas purifying...
6095103 Exhaust control valve structure for 2-cycle engine  
An exhaust passage for connecting to an exhaust port of a cylinder is provided. The exhaust passage includes a first path extending in a direction generally orthogonal to the central axis of the...
6092494 Controlled pressure rise in two-cycle internal combustion engine having cylinder wall fuel injection  
A two-cycle internal combustion engine implements low-pressure, cylinder wall fuel injection and uses a notched exhaust port or the like to control cylinder pressure rise during exhaust port...
6054402 Mullite-zirconia engine part  
An improvement in a thermally insulating component for an engine part, made by sintering from ceramic materials, comprises, the thermally insulating component having a composition, consisting of a...
Matches 1 - 50 out of 158 1 2 3 4 >