Class 123/78A - Piston in head adjusted mechanically

Subclass of Class 123 - Internal-combustion engines
No. of patents: 32
Last issue date: 10/21/2008

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Number	Title	Issue Date
7438025	Ultra-expansion four-stroke internal combustion engine An ultra-expansion four-stroke internal combustion engine, includes a cylinder and a piston, wherein the compression degree of the admission space that satisfies the power requirement is maintained at 1.8-5 Mpa at the end of compression stroke to form the condition ...	10/21/2008
7100567	Method to extend lean ignition limit within internal combustion engine A method of operating an internal combustion engine is provided. The engine includes a main combustion chamber in fluid communication with a prechamber. The method comprises the step of varying the volume within the prechamber during a portion of a compression strok...	09/05/2006
7004120	Opposed piston engine A four-stroke opposed piston engine includes a rotating cylinder with a circumference and an aperture defined through the circumference, first and second opposing pistons, optional first and second opposing cylindrical spacers, first and second opposing piston caps,...	02/28/2006
6860244	Engine control with operating mode detection A system and method for detecting an operating mode of an engine or engine component modulate a first engine parameter and analyze a change in a second engine parameter in response to modulating the first engine parameter to detect a current operating mode based on ...	03/01/2005
6834636	Single-ended barrel engine with double-ended, double roller pistons An internal combustion barrel engine includes an engine housing with a first and second end. An elongated power shaft is longitudinally disposed in the engine housing and defines a longitudinal axis. A combustion cylinder and a guide cylinder are spaced apart and di...	12/28/2004
6763787	Device for controlling the phase angle between a first and a second crankshaft Method and device for regulating the phase angle between a first and a second crankshaft of an internal combustion engine. The engine includes primary cylinders that communicate with secondary cylinders and in every primary cylinder there is movably arranged a prima...	07/20/2004
6581551	Method of controlling the process of combustion in an internal combustion engine, and engine with means for varying the effective compression ratio of the cylinders A four-stroke internal combustion engine includes variable geometric compression ratio, electrically operated inlet valves and a device for supplying a homogeneous fuel/air mixture to the engine cylinders. The inlet valves and the compression ratio are co...	06/24/2003
6427643	Internal combustion engine with variable compression ratio A lean burn auto-ignition internal combustion engine which has a combustion volume which includes two parts one entering into the other, the volume of the second part being variable by control means (34) which takes into account the various operating para...	08/06/2002
6354250	Internal combustion engine An internal combustion engine having at least one cylinder and a power piston reciprocatably moving within the cylinder, wherein the cylinder stationary head of a conventional engine is replaced by a control piston interrelated to the power piston to defi...	03/12/2002
6302067	Internal combustion engine The present invention relates to an unthrottled internal combustion engine of segregating, spark ignited, form, i.e. in which the bulk of the fuel does not begin to mix with the bulk of the air until near the end of the compression stroke, shortly before ...	10/16/2001
6286468	Volume reducing piston The addition of volume reducing piston 28 to a "Two stroke engine with a plunger" through cylinder head 4 so that volume reducing piston 28 can get between cylinder head 4 and plunger body 11 and reduce the amount of fluid sucked into the engine. Also add...	09/11/2001
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
5611300	Floating piston, piston-valve engine The present invention is an improved drive train which includes an engine having at least one power cylinder with a power piston mounted for reciprocating motion therein. The power piston is connected to a crank shaft in the usual manner for translation o...	03/18/1997
5406912	Internal combustion engine An internal combustion engine has at least one set of first and second cylinders (12,14), the first cylinder (12) having a larger swept volume than the second cylinder (14), and respective first and second pistons (16,18) movable in the cylinders. The pis...	04/18/1995
5191863	Rotary sleeve-valve internal combustion engine The present invention is an internal combustion engine having a rotary sleeve valve mechanism with a sleeve valve which has an opening formed in the outer peripheral surface for suction of fuel and discharge of exhaust gas. The present invention achieves ...	03/09/1993
5188066	Internal combustion engine The present invention relates to an arrangement for an internal combustion engine. The engine is of the kind which has a number of working cylinders (1, 2, 3, 4), each of which communicating with a corresponding auxiliary cylinder (5, 6, 7, 8). Each worki...	02/23/1993
4708096	Internal combustion engine The cylinder head of each power cylinder of this internal combustion engine includes an auxiliary cylinder in communication with the power cylinder. An auxiliary piston is moveable within the auxiliary cylinder in synchronism with the power piston. During...	11/24/1987
4664077	Reciprocating internal combustion engine A reciprocating internal combustion engine has a head block axially slidably mounted in a bore formed in a cylinder block in alignment with the cylinder bore, and a cam for moving the head block in the bore in accordance with the position of the piston. T...	05/12/1987
4625684	Internal combustion engine Internal combustion engine comprising at least one cylinder (10), one piston (2) mounted to the crankshaft (2'), and at least one inlet valve and one exhaust valve. At the end of the cylinder (1) corresponding to the top dead center of the piston (2) are ...	12/02/1986
4619236	Control apparatus of internal combustion engine A control apparatus for an internal combustion engine operable on fuels of different octane numbers implements automatic control when the engine knocks to correct the ignition timing preset in accordance with the octane number of the fuel in use to the re...	10/28/1986
4503815	Stratified charge variable compression ratio engine An engine includes an engine block (10) provided with cylinders (12,14) having two pistons (16,18) and a cylinder head (19) having a piston (20) biased by means of torsion bars (24). The biased piston (20) is held in position by an arm (22) which is restr...	03/12/1985
4485768	Scotch yoke engine with variable stroke and compression ratio A yoke type engine wherein the orbital path of the slider is alterable to effect piston stroke and compression ratio changes. A crank component has a crankpin which carries and positions the slider. A boss of the crank component is carried by a control sh...	12/04/1984
4419969	Flexible cylinder-head internal combustion engine with cylinder compression adjustable for use with available fluid fuels In an internal combustion engine, two opposed pistons of equal radius are slidably mounted in a cylinder and respectively connected to cranks of unequal throws mounted for rotation at oppositely disposed cylinder ends in a common crankcase. The pistons ar...	12/13/1983
4246873	Pressure addible engine An engine capable of storing high pressure gases and discharging them to increase the pressure of compressed fuel-mixture. A gas storage chamber is provided adjacent to the combustion chamber. The chamber opens to release high pressure gases just prior to...	01/27/1981
4241703	Devices for promoting compression ratio of fuel mixture in engines A device to fit existing engines for the purpose of increasing compressed fuel-mixture pressure and promoting a compression ratio of the fuel-mixture in an engine to enable the fuel-mixture to burn more perfectly and the engine to works more efficiently. ...	12/30/1980
4191139	Engine with secondary pistons An engine producing combustion of a fuel by compression rather than ignition comprises a conventional engine cylinder having a pair of opposed secondary cylinders mounted side-by-side on the upper portion of the cylinder chamber. The secondary cylinders a...	03/04/1980
4190024	Variable chamber diesel engine A two-cycle diesel engine comprising a diesel head and a combustion chamber whose size is variable upon movement of a flexible fluorocarbon membrane. The diesel engine has an engine cylinder in which a reciprocating piston is disposed. The combustion cham...	02/26/1980
4169435	Internal combustion engine and method An internal combustion engine and a method of operating such an engine in which a power piston and a control piston move within a cylinder for defining between the pistons a combustion chamber. Charges of gas are drawn into an intake chamber defined withi...	10/02/1979
4168678	Internal combustion engine with auxiliary piston for generating turbulence An internal combustion engine is provided with an auxiliary piston reciprocating within an auxiliary chamber for generating turbulence in a gas mixture contained within a main combustion chamber. Forward motion of the auxiliary piston causes the injection...	09/25/1979
4143628	Method and means for increasing the mean efficiency of an Otto cycle engine For improving the efficiency of an Otto cycle engine operating under varying loads, an opposing piston is provided above the driving piston in each cylinder and is controlled in accordance with the inlet manifold depression so as to vary the compression r...	03/13/1979
4104995	Variable compression engine A diesel, gasoline or gas internal combustion engine adapted for operation on a two-cycle or four-cycle basis includes apparatus to vary the compression ratio of gases during operation of the engine. Two pistons, connected to separate crankshafts, communi...	08/08/1978
4033304	Piston-type internal combustion engine A piston-type internal combustion engine includes a variable valve timing device controlling the timing of the intake valve, and a coupling between the accelerator pedal and the variable timing device for varying the timing of the intake valve in response...	07/05/1977

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Class 123/78A - Piston in head adjusted mechanically