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Class 123/188.4 - Reciprocating valve


Subclass of Class 123 - Internal-combustion engines
Definition: Apparatus wherein the valve head slides to and fro during
No. of patents: 52
Last issue date: 05/01/2012


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NumberTitleIssue Date
8166948Throttle-less engine with improved variable valve system
To improve the precision of the control of the charge of a cylinder during idling and low revs/light load operation, a bypass feeding path of low flow capacity provides the cylinder with air or mixture while the high flow capacity intake valves stay closed. ...
05/01/2012
8127734Internal combustion engine having guillotine sliding valve
An internal combustion engine employing a valve regulating the passage of a fluid between the hollow interior of the combustion chamber and the atmosphere. The valve includes a valve body having a valve opening and a blade track passing around the valve opening. A g...
03/06/2012
8087393Zero 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 and an opening located in the wall section of the main part, the open...
01/03/2012
7448354Valve apparatus for an internal combustion engine
An apparatus includes a cylinder head and a valve member. The cylinder head is configured to be coupled to a cylinder and a gas manifold and has an interior surface defining a valve pocket. The valve member is configured to be disposable within the valve pocket such...
11/11/2008
7373909Valve apparatus for an internal combustion engine
An apparatus includes a valve member configured to be reciprocatably disposed within a valve pocket defined by an interior surface of a cylinder head. The valve member has a tapered portion defining multiple flow passages and including multiple sealing portions. At ...
05/20/2008
7263963Valve apparatus for an internal combustion engine
An apparatus includes a cylinder head and a valve member. The cylinder head is configured to be coupled to a cylinder and a gas manifold and has an interior surface defining a valve pocket. The valve member is configured to be disposable within the valve pocket such...
09/04/2007
7182056Inverted poppet valve for internal combustion engine
A poppet valve for use in an internal combustion engine. The poppet has a partially-inverted perimeter shape which nevertheless substantially maintains the curtain area of the valve. These improved valves pack more efficiently into the combustion chamber roof area t...
02/27/2007
7140332Pneumatically actuated valve for internal combustion engines
A pneumatically actuated valve assembly for use as intake and/or exhaust valves on two- or four-stroke internal combustion engines. The assembly includes a valve (100), valve housing (200), and compressed gas distribution and timing mechanisms (FIGS.
11/28/2006
6953018Valve arrangement for a combustion engine
The invention is related to an arrangement that is designed to control inlet and outlet gas mixtures and is used mainly in four stroke combustion engines. Prior art designs are of a kind that limits the performance of the four-stroke engine mainly as a result of the...
10/11/2005
6947823Air/fuel ratio control using a display interface
A method and apparatus for controlling an air/fuel ratio of an internal combustion engine having a programmable air/fuel ratio control. The method and apparatus includes pre-programming a coarse air/fuel ratio setting, determining a condition of the air/fuel ratio b...
09/20/2005
6840200Electromechanical valve assembly for an internal combustion engine
An electromechanical valve assembly 46 for an internal combustion engine 36 is provided. The valve assembly 46 includes a rotor 68 centered about a first axis 122 having a bore 114 extending generally axially therethrough. T...
01/11/2005
6832595Self-cleaning internal combustion engine intake valve
A self-cleaning valve for removing hydrocarbon deposits from pressure responsive automatic air intake valves in an internal combustion engine. The self-cleaning valve assembly of the present invention removes soot which naturally accumulates on the surface of the va...
12/21/2004
6736090Valve device of engine
An engine valve device, wherein an opening part (7) smaller in area than the end surface of a piston (5) is provided in the end surface of a cylinder (3) to form a valve seat (8), and a valve disc (9) in contact with the valve seat...
05/18/2004
6672270Fuel efficient valve mechanism for internal combustion engines
An internal combustion engine having one or more power pistons reciprocating in one or more cylinders has at least one fuel inlet valve of the piston type at each cylinder. An inlet valve sleeve has an open end at the top of the cylinder and has fuel inle...
01/06/2004
6622684Unitary engine block having an intermittent contact intake and exhaust lifter system
An intake and exhaust system for an internal combustion engine having a unitary engine block the system comprising a power cylinder, an intake lifter cylinder and an exhaust lifter cylinder that are formed integral with the engine block. This engine block...
09/23/2003
6526932Combination intake and exhaust valve assembly
An internal combustion engine includes a combination intake and exhaust valve assembly. The combination intake and exhaust valve assembly includes an intake valve and an exhaust valve which are disposed in a coaxial relationship. The intake valve has an a...
03/04/2003
6443121Hydraulically actuated gas exchange valve assembly and engine using same
An engine comprises a housing that defines a hollow piston cavity that is separated from a gas passage by a valve seat. The housing further defines a biasing hydraulic cavity and a control hydraulic cavity. A gas valve member is also included in the engin...
09/03/2002
6382146Engine with fuel delivery system
An engine employing magnetically actuated valves. The engine includes a combustion chamber, a port, an electromagnet, a valve, a biasing spring, and a valve guide. The valve is operably positioned in relation to the combustion chamber to allow fuel into t...
05/07/2002
6349691Automatic, pressure responsive air intake valve for internal combustion engine
An automatically actuated, pressure responsive air intake valve for an internal combustion engine generally a fixed valve seat housing and a sliding valve member. The valve seat housing is threaded into the head of a working chamber on an internal combust...
02/26/2002
6328012Cylinder head and valve configuration
Disclosed is a valve and head assembly for use in a flat head style internal combustion engine. The valve has a cup portion above the face of the valve. The cup portion of the valve moves longitudinally in a sleeve or liner and a retainer plate retains th...
12/11/2001
6295731Method of hardening a valve face of a poppet valve
In a valve head of a poppet valve used in an internal combustion engine, a lobe is formed. The lobe has a vertical section of an isosceles triangle which has a vertex in the middle. By pressing the lobe in a bore of a die, the lobe is plastically deformed...
10/02/2001
6226866Method of making carbon-carbon composite valve for high performance internal combustion engines
The present invention provides a carbon-carbon (C/C) composite valve structure useful for high temperature internal combustion engines comprising (a) a carbon-carbon (C/C) composite valve stem having a flared end and a non-flared end opposite the flared e...
05/08/2001
6105542Modular engine
A modular engine has a plurality of engine sections, with each of the engine sections having a power module, which power modules are bolted to one another in a selected positional relationship. A link-up device is selectively able to couple any number of ...
08/22/2000
5931134Internal combustion engine with improved combustion
An internal combustion design which allows for enhanced control of the fuel-air mixture and complete exhaust of combustion gases during the exhaust stroke. The internal combustion engine does not require that the combustion gas outlet valve enter into the...
08/03/1999
5875747Internal combustion engine
An engine employing magnetically actuated valves. The engine includes a combustion chamber, a port, an electromagnet, a valve, a biasing spring, and a valve guide. The valve is operably positioned in relation to the combustion chamber to allow fuel into t...
03/02/1999
5803042Valves and valve timing for internal combustion engine
An exhaust valve assembly of an internal combustion engine selectively covers an exhaust manifold circumferentially located about a top wall of a cylinder without interfering with segments of a piston. The exhaust valve assembly includes a ring-shaped por...
09/08/1998
5740771Computer controlled intake and exhaust valve
A computer controlled intake and exhaust valve for internal combustion engines having a microprocessor controlled, hydraulically operated, valve actuator with manually adjustable variable performance settings for improving fuel efficiency and reducing emi...
04/21/1998
5694890Internal combustion engine with sliding valves
An internal combustion engine includes slidable valves. Horizontal valve seats of tapered design are associated with inlet and exhaust ports at the top of the engine's combustion chambers. The slidable valves are generally planar and tapered to conform to...
12/09/1997
5647309Internal combustion engine firing system
A firing system for a multi-cylinder internal combustion engine propagates combustion between cylinders by the use of a valve located between an outlet port of one chamber and an inlet port of a second cylinder....
07/15/1997
5596966Slide port valve for an internal combustion engine
A port throttle valve and an intake system incorporating the valve is disclosed. The valve is disposed between one of two intake runners delivering air to the intake port of an engine cylinder and includes a base member having an opening for delivery of a...
01/28/1997
5542385Intake manifold for an internal combustion engine
Disclosed is an intake manifold system for an internal combustion engine, which includes a surge tank for temporarily storing the air, an intake manifold for connecting the surge tank with combustion chambers of cylinders, the intake manifold having a plu...
08/06/1996
5261359Reciprocating 2-stroke cycle internal combustion engine
A superchargeable multi-cylinder 2-stroke cycle internal combustion engine employs opposite reciprocating mult-port slide valves in guideways on opposite sides of the engine block, to open and close cylinder air supply and combustion gas discharge conduit...
11/16/1993
5065711Internal combustion engines
The two-stroke engine includes at least one cylinder, a piston reciprocable within the cylinder and a cylinder head which contains at least one exhaust port which is controlled by a poppet valve and at least two inlet ports which are controlled by respect...
11/19/1991
5033424Dual tract induction
The invention relates to an internal combustion engine wherein two intake tracts 12, 14 balanced for equal air flow, lead to each intake valve and both tracts have outer sections which open on to the same side face of the engine, the inner sections of the...
07/23/1991
5031592Engine cylinder head with augmented air or air/fuel mixture flow and method
There is disclosed an internal combustion (V-8) engine having an improved form of cylinder head and intake manifold for augmented combustion air flow and improved fuel mixing wherein the intake chamber immediately upstream of the intake valve is provided ...
07/16/1991
4964384Tornado engine
The cylinder head of an engine has internal truncated conical intake and exhaust passageways which create a swirling mixture of gases in the cylinder. The intake valve is in the form of a ring with a plurality of parallel valve stems, preferably four, all...
10/23/1990
4889088Fluid flow control method and apparatus for a positive displacement engine or compressor
A fluid control apparatus and method for a positive displacement engine or compressor which has a treatment chamber that communicates with a fluid admission duct and an exhaust duct via a port, and contains a piston within the treatment chamber which reci...
12/26/1989
4875440Valve control system for internal combustion engines
An improved intake and exhaust valve system for internal combustion engines is disclosed. The system includes a primary valve control mechanism for sequentially opening and closing the intake and exhaust valves, and a secondary control system for modifyin...
10/24/1989
4872430Valve system for reciprocating engines
This invention relates to a valve system for reciprocating engines, said system comprising at least two cylindrical guides obtained in the cylinder head; a valve for each guide, said valve being slidable inside the guide itself, without never projecting i...
10/10/1989
4790272Non-circular poppet valves for internal combustion engine cylinder assemblies
A new internal combustion engine cylinder and valve assembly includes one or more valve openings and valves having a non-circular periphery. The non-circular valve openings and valves increase the flow-through area across the engine intake and exhaust val...
12/13/1988
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