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8616171 Valve system for piston engines  
The various embodiments of the present invention provide a rotary valve system for piston engines. The valve system for piston engines comprises an intake rotary valve, an exhaust rotary valve...
8464682 Air intake device for internal combustion engine  
An air intake device for an engine includes a duct having therein a first air flow passage, a housing having therein a second air flow passage, a rotary valve having a valve plate. A block of the...
8087393 Zero float valve for internal combustion engine and method of operation thereof  
A valve apparatus for an internal combustion engine, the valve apparatus including: a main part having a wall section defining a valve cavity extending along a longitudinal length of the main part...
7721689 System and method for controlling fluid flow to or from a cylinder of an internal combustion engine  
A system for controlling fluid flow to or from at least one cylinder of an internal combustion engine is disclosed. The system includes a rotary valve. A cylinder head having a valve chamber...
7325520 Rotary valve system and engine using the same  
Rotary valve system for controlling communication with a port in an internal combustion engine which, in one disclosed embodiment, has a crankshaft, compression and expansion pistons connected to...
7213547 Valve  
A valve is constructed to strike a balance between providing relatively high sealing yet low friction as components of the valve move. The valve includes a port and an actuator movable relative to...
6976464 Semi-rotating valve assembly for use with an internal combustion engine  
The present invention is directed to a semi-rotating valve assembly that may be used in conjunction with an internal combustion engine. The semi-rotating valve of the present invention comprises a...
6779504 Spherical rotary intake valve for spherical rotary valve engine assembly  
An improved spherical rotary intake valve for a spherical rotary valve assembly for internal combustion engine, the improved rotary intake valve having a drum body of spherical section defined by...
6755171 Twin rotary valves for a four stroke internal combustion engine  
A rotary valve that includes three sealing blades and four sealing rings. Two on each end. The valve assembly rotates at one half of crank speed, for a (single cylinder four-cycle engine.) This...
6691664 Direct port rotary valve mechanism with variable timing for internal combustion engines  
Disclosed is a variably timed rotary valve mechanism for controlling the air/fuel intake into and exhaust gases out of an internal combustion engine. There are two rotary valve shafts, one intake...
6651605 Rotary valve for piston engine  
A rotary valve assembly for an internal combustion engine includes a rotatable tubular valve body having a pair of diametrically opposed fluid flow holes that are intermittently aligned with the...
6595177 Rotary sleeve port for an internal combustion engine  
A porting apparatus in an internal combustion engine delivers and exhausts gas in a combustion space. A pair of cylinders each have a cylinder wall mounted for rotation within a head of an engine...
6443110 Rotary valve head system for multi-cylinder internal combustion engines  
A rotary valve head system for a multi-cylinder engine includes hollow intake and exhaust rotary valve tubes having multiple apertures registerable with an engine intake or exhaust manifold...
6443116 Valve device for an internal combustion engine  
The invention refers to a valve device for a combustion engine which includes a combustion chamber (1) and at least one channel (5) for communication between the combustion chamber (1) and an...
6390048 Valve apparatus for internal combustion engine  
A gas valve apparatus for an internal combustion engine having a combustion chamber. The gas valve apparatus includes a rotary intake valve located between an outer intake port and inner intake...
6378481 Four-stroke internal combustion engine with a rotary-spool valve  
In a four-stroke internal combustion engine with a rotary-spool valve as the inlet valve, the cylinder head has a valve shaft supported transversely with respect to the cylinder axis, which valve...
6308676 Cooling system for rotary valve engine  
An improved cooling system for an internal combustion engine employing spherical rotary intake and exhaust valves which are fixedly mounted on a rotating shaft means, the improvement comprising...
5906180 Rotary valve assembly for an internal combustion engine  
An engine apparatus for an internal combustion engine which includes a first rotary valve having an indentation adapted to open an intake passage to allow air to be introduced into a combustion...
5711265 Rotary valve drive mechanism  
An improved drive mechanism for rotary valves of the type used in internal combustion engines indexes the valves in selected attitudes of rotation to align the valve passage with an inlet or...
5690069 Internal combustion engine having rotary distribution valves  
A multi-cylinder internal combustion engine comprising a cylinder assembly with intake ports and exhaust ports arranged in register, wherein the distribution system for opening and closing said...
5655494 Variable roller valve system for internal combustion engine  
A dynamic seal for containing gas flow between a roller valve and a cylinder in an internal combustion engine. Vents from the cylinder cavity allow pressure therefrom, particularly on the...
5642699 Rotary valve system  
A rotary valve system for a four stroke engine is provided. The rotary valve system includes: an engine having a plurality of cylinders, a crankshaft, a fuel injector and an exhaust manifold; an...
5623901 Time twister cylinder head for use in internal combustion engines  
A time twister cylinder head includes two rotary valves driven by a timing belt coupled to the engine crankshaft by belts and pulleys to describe a desired rate of rotation of the valves with...
5579730 Rotary valve head assembly and related drive system for internal combustion engines  
A rotary valve head assembly including a split head assembly, a rotary spool assembly, spool drive assemblies, and bearing and spool lubrication components. The split head assembly has bores for...
5579732 Electromechanical valve system  
The electromechanical valve system consists of a new system for opening and closing intake and exhaust valves on internal combustion motor vehicle engines by using electric pulses from the...
5503124 Rotary valve with seal supporting tongue  
A rotary valve (10) for an internal combustion engine, of the hollow cylindrical type, having one or more openings (14) arranged to pass periodically over a window in the cylinder head bore,...
5437252 Rotary plug  
A substantially cylindrical rotary plug for enabling admission of a fluid in a combustion chamber of an internal-combustion engine, including a least one bent inner channel through which the fluid...
5417188 Double effect distribution sequential valve shaft assembly  
A double-effect distribution sequential valve shaft assembly for use within a cylinder head cover of internal combustion engines or other valve-type distribution systems, includes a rotating valve...
5410996 Rotary valve assembly used with reciprocating engines  
An improved rotary valve assembly that is rotated by chain, belt or gears that are driven by a reciprocating engine which has intake and exhaust rotary valves that have ports and interior channels...
5372104 Rotary valve arrangement  
A rotary valve arrangement for engines and the like has sealing members and rings inset into the valve rotor which rotates within a loosely fitted rotor sleeve so that only the sealing elements...
5361739 Spherical rotary valve assembly for use in a rotary valve internal combustion engine  
A spherical rotary valve assembly for an internal combustion engine of the piston and cylinder type wherein the spherical rotary valve assembly is positioned within a split cylinder head having an...
5359855 V-block two-stroke internal combustion engine  
An autoignition two-stroke internal combustion engine utilizes rectangular working chambers and pistons with bar-type seals and rotary sleeve valves which connect the working chambers to exhaust...
5309876 Automatic variator of valve overlap and valve section  
An automatic variator for use in an internal combustion engine and other engines which use valve-type distribution systems, to operate a twin set of double-effect distribution sequential valve...
5309871 Rotating exhaust valve  
An exhaust for an internal combustion engine includes an exhaust valve rotating within the cylinder block to communicate with successive cylinders. An exhaust conduit rotates with the valve and is...
5287701 Autoignition two-stroke internal combustion engine  
An autoignition two-stroke internal combustion engine utilizes rectangular working chambers and pistons with bar-type seals and rotary slide valves which connect the working chambers to exhaust...
5273004 Two-stroke engine with rotary valves and uses of such an engine  
A two-stroke engine comprising at least one cylinder having a combustion chamber, an exhaust duct connected to the combustion chamber, at least one duct for the intake of fresh gas compressed by a...
5249553 Rotary valve shaft indent system  
A rotary valve shaft indent system for use in internal combustion engines including an intake manifold, and exhaust manifold, at least one combustion chamber having a piston and an ignition point,...
5205251 Rotary valve for internal combustion engine  
There is provided a rotary valve system for an internal combustion engine which has the capabilities of advancing of retarding the openings of the valves. The rotary valves comprise a cylindrical...
5152259 Cylinder head for internal combustion engine  
A cylinder head for attachment to a block assembly of an internal combustion engine as a replacement for a conventional cylinder head and its conventional valves and associated mechanical...
5127376 Rotary valve shaft  
A novel rotary valve system is provided which comprises an intake rotary valve shaft and an exhaust rotary valve shaft, each shaft including a passage adapted to deliver fuel to the combustion...
5109814 Spherical rotary valve  
An improved rotary valve for a spherical rotary valve engine in which the intake spherical valve and the exhaust spherical valve have an aperture on the spherical periphery for communication with...
5105784 Rotary valve and system for duration and phase control  
An internal combustion engine has a stator passage leading to a cylinder. An intake poppet valve is disposed between the cylinder and stator passage, and a rotary valve adjoins the opposite end of...
5003942 Rotary vaned valves  
A rotary valve provides incorporates one or more sets of blades or vanes within the tubular body member of the rotary valve, which vanes are independent of the rotary valve to enable them to be...
5000131 Exhaust port control valve for two stroke engine  
A two cycle crankcase compression diesel engine having a supplemental exhaust port system that is formed in a straight line perpendicular to the cylinder bores and which intersects the main...
4995354 Two-cycle engine  
A two-cycle engine having a fuel injector, scavenge port and an exhaust port is provided with a scavenge pump for supplying scavenging air into a cylinder. An exhaust rotary valve is connected to...
4987864 Two cycle engine with valved pressure scavenging  
A port scavenged two cycle engine with a separate source of pressurized air has a valve between each port and the air supply to provide a high blowdown pulsing scavenging flow to the cylinders...
4976227 Internal combustion engine intake and exhaust valve control apparatus  
An intake and exhaust valve control apparatus includes a pair of valves rotatably disposed in a body mounted in association with a cylinder of an internal combustion engine. Each valve includes a...
4969918 Rotary valve operating mechanism  
A rotary valve is rotatable about an axis and has a port extending crosswise of the axis of rotation. A drive unit drives the rotary valve to oscillate about 180° in such a way that the rotary...
4949685 Internal combustion engine with rotary valves  
An internal combustion engine with a novel system of rotary valves is disclosed. A conventional engine has a pair of hollow tube rotary valves for each head, one tube being employed as an intake...
4932369 Internal combustion engine inlet manifold  
An internal combustion engine inlet manifold is disclosed which comprises of a housing defining a plenum, at least one inlet tract and at least one rotary valve member supported by the housing....

Matches 1 - 50 out of 95 1 2 >