11results about "Oscillatory slide valve" patented technology

The invention belongs to the technical field of internal combustion engine power devices, and discloses a double-piston mechanism for an internal combustion engine, which comprises a cylinder body, and more than one cylinder is arranged in the cylinder body; an air inlet seat and an air outlet seat are installed on the upper portion and the lower portion of the cylinder body respectively, an air inlet pipe and an air outlet pipe are arranged in the air inlet seat and the air outlet seat respectively, and an air inlet channel and an air outlet channel are arranged in the air inlet pipe and the air outlet pipe respectively. A control device for gas distribution is arranged at the corresponding position of each cylinder; a high-pressure oil pump is arranged outside the cylinder body, and the high-pressure oil pump is communicated with the oil sprayer through a high-pressure oil pipe; a piston assembly I and a piston assembly II are symmetrically arranged in each cylinder body, and a bevel gear set I and a bevel gear set II which are matched with the piston assembly I and the piston assembly II to transmit power are further arranged in each cylinder body. The power performance of the internal combustion engine can be improved through the two piston assemblies, the device is small in size and light in weight, and single-machine fuel consumption and operation cost are effectively reduced.

In an opposed-piston mechanism, an intake compression cylinder (1) and an expansion exhaust cylinder (2) are individually provided, and a rotating perforated columnar valve (3) and an ignition combustion chamber (4) are formed therebetween. A valve mechanism is arranged on a cylinder side surface side, and a disk cam (7) that moves in conjunction with crank rotation operates an intake valve (33) and an exhaust valve (34) on a cylinder side surface via a movable fulcrum type rocker arm (8). A movable structure of the rocker arm also realizes opening / closing amounts of the intake valve (33) and the exhaust valve (34) according to an operating situation of an engine. Since a piston pin (18) and a piston pin (30) can absorb variations of an engine that occur when two connecting rods are connected to one piston, the two connecting rods can be easily connected to the one piston.

Cylinder arrangement for an internal combustion engine with a cylinder housing (4) in which a working piston (8) is provided, wherein the cylinder housing (4) is closed at a first end by a cylinder cover (6) movable by means of a first drive device (20), the cylinder cover having a cover circumferential surface (16), such that a combustion chamber (10) is formed between the working piston (8) and the cylinder cover (6), wherein a slide arrangement (18), which can be actuated by a second drive device (44), is provided for opening and closing combustion air inlet openings (32) and exhaust gas outlet openings (34) arranged in the cylinder housing (4), wherein the cylinder cover (6) is movably arranged such that an overlap in the radial direction of the cover circumferential surface (16) with the combustion air inlet openings (32) and exhaust gas outlet openings (34) is possible, characterized in thatthat a circumferential edge of the cover circumferential surface (16) directed towards the combustion chamber (10) has a number of angled sections (72) corresponding to the combustion air inlet openings (32) and exhaust gas outlet openings (34).

An homogeneous charge compression ignition internal combustion engine has a combustion cylinder, and a combustion piston head movable along a piston axis within the combustion cylinder. A compression ignition cylinder is fluidically connected to the combustion cylinder. A compression ignition piston moves in reciprocating motion within the compression ignition cylinder. The compression ignition piston is adapted to be moved between a bottom dead centre position corresponding to a maximum volume of the compression ignition cylinder to a top dead centre position corresponding to a minimum volume of the compression ignition cylinder during operation of the engine to create a pressure spike within the combustion cylinder thereby causing auto ignition of a fuel / air mixture within the combustion cylinder.

A simple positive displacement turbine engine has been discovered in which all reciprocating, oscillating and / or elliptical mass is eliminated. This special dual axis turbine engine masters near ideal & complete base four (4) Internal Combustion Engine (ICE) cycles namely; Intake, Compression, Expansion & Exhaust and further perfects them with a single draft cycle between the Intake & Compression cycles and another single draft cycle between the Expansion & Exhaust cycles for a total of six (6) cycles all completed within one (1) 360 degree rotor revolution. The combination of the intrinsic low friction & highly efficient conversion of chemical & thermal reaction into mechanical work and significantly improved cycling results in extremely high specific power and significantly improved Brake Thermal Efficiency (BTE) such that complicated, costly & problematic Variable Valve Timing (VVT) & Direct Fuel Injection (DI) systems can add no additional benefit. And yet the core moving parts (not counting roller bearings) can be reduced to as little as two (2) Intersecting rotors on dual axis and no more than four (4) where timing gears are necessary. Despite its unmatched simplicity the here disclosed special dual axis turbine engine is capable of efficiently generating high compression ratios in excess of 35: 1 @ low speeds and 40: 1 @ higher speeds without aid of external boost. Combined with the ability to initiate ignition of a vast array of combustible fuels, including Hydrogen, by multiple optimally optional means (ie Spark, Glow, Auto, Etc.) in advance of minimum combustion chamber volume without any negative work produced. Industrially significant improvements in power density, BTE AND harmful emission mitigation and even elimination are mathematically and dependably obtainable.

The present application relates to the technical field of motorcycle engine manufacturing, in particular to an engine starting decompression mechanism and a motorcycle, comprising an engine body, further comprising a valve top cup, the valve top cup is composed of a valve cover and a valve rod, a rotary pressure valve for conducting and discharging compressed air is installed inside the valve cover, an exhaust mesh cover for exhaust is installed on the valve cover, an exhaust hole for discharging compressed air is formed at the lower end of the rotary pressure valve; a valve core lifting rod for opening and locking the rotary pressure valve is slidably installed in the valve rod; the cam block drives the valve core lifting rod to slide up and down, through the cooperation of the rotary pressure valve and the valve core lifting rod, the problem that the starting mechanism needs to be triggered every time the engine starts is solved, thereby improving the use efficiency of the starting decompression mechanism, reducing the invalid use frequency of the decompression mechanism, and prolonging the service life of the mechanism.

An engine rotating valve type rotary servo valve mechanism, including valve core (1), valve seat (2), inlet and outlet manifold (3), one-way diaphragm (18), one-way diaphragm (19), engine cylinder and servo rotary motor; The servo valve method of the engine rotating valve type servo valve mechanism is to use the servo rotary motor as the power to drive the valve core (1) to rotate inside the valve seat (3), and to use the rotary transformer to monitor and accurately control the rotary position of the inlet valve core (1) relative to the valve seat (3), to realize the opening and closing between the inlet and outlet grooves and the corresponding inlet and outlet ports, so as to realize the stop of the valve. The device has the advantages of compact structure, stable gas supply, convenient use and adjustment, etc., can effectively reduce the vibration of the engine due to the valve, improve the engine efficiency, and has good market prospect.

A rotary valve internal combustion engine A rotary valve internal combustion engine has a piston (1) connected to a crankshaft (3) and reciprocatable in a cylinder (2), a combustion chamber (4) being defined in part by the piston. The engine has a rotary valve (5) rotatable in a valve housing (8) fixed relative to the cylinder (2), the rotary valve having a valve body containing a volume (9) defining, in part, the combustion chamber 4 and further having in a wall part (11) thereof a port (12) giving, during rotation of the valve, fluid communication successively to and from the combustion chamber via inlet and exhaust ports (13, 14) in the valve housing. The valve body has a non-uniform radial profile along its axial length and / or about its axis of rotation to accommodate changes in the profile of the valve body during operation to maintain a substantially constant clearance between the valve body and the housing throughout the length of the valve body.

A rotary flow control apparatus may comprise a rotary drive mechanism coupled to a ball controller comprising a ball disposed within a cavity. The apparatus may be disposed within a tubing string in a wellbore. Fluid flow is provided though the tubing, causing the rotation of the rotary drive mechanism. The flow passes through a ball cage above a seat disc that incorporates a flow port. The ball orbits around the cavity in response to the motion of an axially extending surface or “kicker.” When the ball obstructs the flow port, it substantially blocks the flow of fluid through the assembly, generating a water hammer impulse in the tubing above the rotary drive mechanism. The rotating kicker moves the ball off the flow port at one angular position and then allows the ball to reseat at a second angular position.