542results about "Cylinder heads" patented technology

A sliding arrangement for use in an internal combustion engine is described, comprising a cylinder liner (1) and at least one piston ring (10), wherein the liner (1) has a through-bore defining an inner surface (S) which in turn defines three sections: a first section (2) near the end of the piston stroke, facing the cylinder head (at top dead center, TDC); a second, middle section (3); and a third section (4) near the end of the piston stroke, facing the crankshaft of the engine (at top dead center, TDC), wherein (i) the TDC section (2) of the liner (1) has a surface finish with a first roughness value defined by a structure of recesses and projections (“valleys” and “raised areas”); the middle section (3) of the liner (1) has a surface finish with a second roughness value defined by a structure of recesses and projections (“valleys” and “raised areas”);(1) the BDC section (4) of the cylinder liner (1) has a surface finish with a third roughness value defined by a structure of recesses and projections (“valleys” and “raised areas”), and the roughness value of the middle section (3) is significantly lower than the roughness value of the TDC section (2), and is defined by an essentially very smooth structure of recesses and projections (“valleys” and “raised areas”); and (ii) a ceramic coating (R) is applied to at least part of the contact surface of the piston ring (10) by the physical vapor deposition (PVD) process.

A dual fuel engine system and / or retrofit system includes a cylinder head (102), an intake manifold (202), a first fuel injector (106), and a second fuel injector (204). The cylinder head defines an intake port (104). The intake manifold is coupled to the cylinder head. The first fuel injector extends into the cylinder head and is configured to dispense a first fuel. The second fuel injector extends through the intake manifold and into the cylinder head. The second fuel injector is configured to dispense a second fuel. The second fuel injector (204) is oriented to spray the second fuel into the intake port (104). The intake manifold includes an injector mount (210) extending therethrough, the injector mount separating an airflow plenum (211) of the intake manifold from the second fuel injector (204).

We provide a new cylinder liner to suppress engine vibrations. [Solution] The problem is solved by a joint comprising a cylinder block and a cylinder liner cast into the cylinder block, wherein the cylinder liner has a plurality of protrusions on its outer circumference, and the joint has a coating made of resin material or rubber material between the cylinder liner and the cylinder block.

This utility model discloses an engine assembly and a vehicle. The engine assembly according to this utility model includes: a cylinder block and a main water jacket; the cylinder block has an outer shell and an inner shell; the inner shell surrounds and defines a cylinder bore opening towards the end face of the cylinder block; the outer shell surrounds the inner shell; a connecting member is provided between the outer shell and the inner shell to support the inner shell; the main water jacket is disposed between the outer shell and the inner shell and surrounds at least a portion of the outer periphery of the cylinder bore; the main water jacket is adapted to circulate coolant to cool the cylinder block; an annular water channel is formed between the outer shell and the inner shell, located at the end face of the cylinder block and surrounding the cylinder bore; the annular water channel is disposed at the top of the main water jacket and communicates with the main water jacket. The engine assembly according to this utility model, by providing a main water jacket between the outer shell and the inner shell of the cylinder block and providing an annular water channel at the top of the main water jacket, increases the heat exchange area and heat exchange time of the coolant within the cylinder block, improves heat exchange efficiency, and thus improves the engine's heat dissipation capacity.

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.

The utility model belongs to the technical field of motorcycle engines, and relates to an air cylinder head structure of a motorcycle engine, which comprises an air cylinder head, a cam shaft is arranged at the top of the air cylinder head, a timing chain wheel is sleeved on the cam shaft, a combustion chamber is arranged below the cam shaft, and a decompression ejector rod for ejecting an exhaust valve open is arranged in the cam shaft in a sliding mode. A centrifugal mechanism for driving the decompression ejector rod to slide is arranged on the timing chain wheel, a first sparking plug and a second sparking plug which are inclined are arranged on the left side and the right side of the combustion chamber respectively, and the included angle between the second sparking plug and the bottom plane of the air cylinder head is smaller than that between the first sparking plug and the bottom plane of the air cylinder head. The air cylinder head is provided with an avoiding groove for avoiding the timing chain wheel and a sleeve base extending in the direction of the avoiding groove, and a sleeve for installing a second spark plug is arranged in the sleeve base. The cylinder head structure of the motorcycle engine is compact in layout, stable in structure and capable of achieving the purpose of further saving energy and reducing consumption.

The invention relates to a combustion system, an engine and a vehicle. The combustion system comprises an air inlet channel, an exhaust channel, an air inlet valve, an exhaust valve, a cylinder cover, a cylinder sleeve and a piston, a cylinder cover combustion chamber is arranged in the combustion system, and at least one of the inner surface of the cylinder cover combustion chamber, the surface, facing the interior of the combustion system, of the air inlet valve, the surface, facing the interior of the combustion system, of the exhaust valve and the top surface of the piston is provided with a thermal barrier coating.

The invention discloses an indicator valve, an engine car blowing system and a control method of the engine car blowing system, and belongs to the technical field of engines, the indicator valve comprises a shell provided with an air inlet, an air outlet and an airflow channel, and a step surface is formed on the inner wall of the airflow channel; the valve element is arranged in the shell in a sliding mode, a containing cavity is defined by the valve element and the shell, the containing cavity communicates with the air inlet and the airflow channel, and part of the valve element is embedded into the airflow channel; the valve element has a closed state and an open state, and in the closed state, the valve element is configured to be connected with the step face in a sealed mode so as to isolate the air outlet and the airflow channel. The gas inlet is formed in the indicator valve, compressed gas is conveyed into the gas inlet through other gas source devices, the compressed gas can push the valve element upwards, the valve element and the step face which are originally connected in a sealed mode are separated, then the indicator valve can be opened, conveying of the compressed gas is stopped, the indicator valve can be closed, manual opening and closing are not needed, and the working efficiency is improved. And the opening and closing difficulty of the indicator valve on a large engine is reduced.

The exhaust structure of the engine cylinder head comprises a cylinder head body, the cylinder head body is provided with an exhaust passage, an air outlet of the exhaust passage is provided with a flange plate, the flange plate is used for being in flange connection with an exhaust pipe of the engine, and the end, close to the flange plate, of the exhaust pipe is provided with a bent pipe section. Therefore, the exchange efficiency of fresh air and waste gas in the combustion chamber of the engine cylinder head can be improved.

High-temperature and high-pressure gas is generated according to an internal combustion engine steam engine basic principle using method to drive piston motion, and the motion is converted into mechanical motion. The design principle of the hydrogen water vapor power internal combustion steam engine is based on the principle. According to the characteristic that the combustion temperature of hydrogen is high, the characteristic that water can be electrolyzed into hydrogen and oxygen, and the characteristic that the boiling point of the water under conventional atmospheric pressure is 100 DEG C, the hydrogen water vapor power internal combustion steam engine is integrated to obtain a result.

Vehicle thermal management system, featuring: an integrated thermal management valve (ITM) (1) for receiving engine coolant through a coolant inlet (3A) connected to an engine coolant outlet (112) of an engine (110) and for distributing the engine coolant flowing towards a radiator (300) via a coolant outlet path (3B) connected to a heating core (200) and the radiator (300); a water pump (120) arranged at a front end of an engine head coolant inlet (111) of the engine (110); a coolant branch flow path (107) branched off at a front end of the engine coolant inlet such that it is connected to an exhaust gas recirculation (EGR) cooler (500); and an intelligent single valve (SSV) (400) for adjusting an engine coolant flow in the EGR cooler flow path direction in the coolant branch flow path (107), characterized by the fact that The coolant outlet path (3B) has a radiator outlet path (3B-1) connected to the radiator (300), a heater outlet path (3B-2) connected to the heater core (200), and an EGR outlet hole (3B-3) connected to the EGR cooler (500), which is connected to the coolant branch flow path (107).

The present application includes a cylinder head gasket for an internal combustion engine that includes a plurality of metal layers that together form a flange portion extending radially to or adjacent a cylinder bore, wherein the plurality of metal layers are configured to be interposed between substantially an entirety of an interface between a cylinder head and a cylinder liner of the internal combustion engine.

The utility model discloses an engine cylinder body and an engine, the engine cylinder body is provided with two groups of cylinder structures, and the two groups of cylinder structures are distributed in a V shape and jointly define a V-shaped space; the side face, facing the interior of the V-shaped space, of the air cylinder structure of the engine cylinder body is provided with a warm air water channel, the warm air water channel is arranged in a protruding mode facing the interior of the V-shaped space, the warm air water channel is provided with a warm air water inlet pipe connector, and the warm air water inlet pipe connector is used for being communicated with a warm air water tank. According to the engine cylinder block, the warm air water channel is arranged on the side face, facing the interior of the V-shaped space, of the air cylinder structure, the warm air water channel protrudes towards the interior of the V-shaped space, the warm air water channel can be arranged in the V-shaped space, extra arrangement space provided for the warm air water channel can be reduced, the structure of the engine cylinder block can be made to be compact, and the engine cylinder block is convenient to assemble and disassemble. The size of the engine can be reduced by reducing the size of the engine cylinder, and the engine can be conveniently arranged on a vehicle.

Method for manufacturing segmented electro-optic display backplanes includes (a) providing a laminate comprising an insulating layer having opposite first and second surfaces and a conductive metal layer having opposite first and second surfaces (the insulating layer second surface is superposed on the conductive metal layer first surface); (b) applying laser energy from a first laser source passing through the insulating layer onto selected portions of conductive metal layer first surface to cause adjacent portions of the insulating layer to be pyrolyzed to form conductive carbon regions; (c) applying laser energy from a second laser source on the insulating layer first surface to pyrolyze selected portions thereof into conductive carbon segments electrically isolated from each other by other portions of the insulating layer. The conductive carbon regions in the insulating layer form vias between each of the conductive carbon segments and one of the selected portions of the conductive metal layer.

A system includes a block having a cylinder, a cylinder head, a cylinder liner, and a gasket. The cylinder liner includes a recess formed into a top surface of the cylinder liner. The cylinder liner is configured to line the cylinder about a piston. The gasket is disposed in the recess between the cylinder head and the cylinder liner. The recess includes a bottom surface. At least a portion of the bottom surface includes a tapered portion and a depth of the tapered portion increases along an inward radial direction of the cylinder liner.

An ignition coil includes a joint part that is formed of a tubular elastic body. The join part has a distal end mounted to an ignition plug arranged in a plug hole having a bend, and a proximal end mounted to a coil main body part arranged at a proximal-side entrance part of the plug hole which has a greater inner diameter than the bend. On an outer circumferential surface of a main tubular portion opposed to the bend, there are formed first ribs each extending along an axis of the joint part. On an outer circumferential surface of a proximal-side tubular portion, there are formed second ribs each extending along the axis of the joint part. When viewed along the axis of the joint part, a maximum value of a first rib diameter and a maximum value of a second rib diameter satisfy the relationship of d2 > d1.

A system includes a block having a cylinder, a cylinder head, a cylinder liner, and a gasket. The cylinder liner includes a recess formed into a top surface of the cylinder liner. The cylinder liner is configured to line the cylinder about a piston. The gasket is disposed in the recess between the cylinder head and the cylinder liner. The recess includes a bottom surface. At least a portion of the bottom surface includes a tapered portion and a depth of the tapered portion increases along an inward radial direction of the cylinder liner.

An engine ignition system, an ignition method, an engine, a vehicle and a transport, relating to the technical field of vehicle parts. The ignition system comprises: an ignition member, the ignition member being suitable to be mounted in a combustion chamber of an engine; and a heating device, the heating device being connected to the ignition member and used for heating the ignition member to a set temperature, so that fuel sprayed into the combustion chamber is heated and combusted, the set temperature being greater than or equal to the auto-ignition temperature of the fuel in the combustion chamber.

The invention relates to the field of air cylinder sleeves, and discloses a low-needle-shaped burr air cylinder sleeve, a process and application, the low-needle-shaped burr air cylinder sleeve comprises an air cylinder sleeve body and burrs formed on the air cylinder sleeve body, and the height H of the burrs ranges from 0.2 mm to 0.6 mm; a gentle slope angle alpha of 25-65 degrees is formed between the roots of the burrs and the outer surface of the cylinder sleeve; the burr surface roughness Rz is less than 15; and the ratio of the void volume among the burrs to the volume of the burrs is 1.5: 1-5.0: 1. Through the low burr height of 0.2-0.6 mm, the gentle slope of 25-65 degrees and the low-roughness surface with the RZ smaller than 15, the flowing resistance of molten aluminum is jointly reduced, the flowing speed of the molten aluminum is increased by 15%-25%, the temperature drop is reduced by 8%-12%, and the mold filling capacity is enhanced; the ratio of gaps with the burrs larger than or equal to 1.8: 1 to the volume is matched with low roughness, the gaps are fully filled with molten aluminum, the gaps between aluminum and iron of a blank are reduced by 20%-40% after die casting is completed, and the heat dissipation efficiency is improved by 25%-35%; good aluminum-iron combination and heat conduction enable the thermal stress of a cylinder hole to be uniform, the deformation amount is reduced by 30%-50%, and sealing is guaranteed; and finally, the engine power is promoted to be increased by 5%-10%, and the energy consumption is

An engine includes a block that includes a block cylinder, a block passage configured to receive a head bolt, and a block fluid passage. The engine also includes a deck extender coupled to the block, and the deck extender includes a deck cylinder configured to align with the block cylinder, a deck passage configured to align with the block passage, and a deck fluid passage configured to align with the block fluid passage. The engine further includes a cylinder liner coupled to the block and the deck extender via the block cylinder and the deck cylinder, and the cylinder liner includes a contiguous cylinder wall to form an engine cylinder. Moreover, the engine includes a cylinder head configured to couple to the deck extender.

The application discloses an engine assembly, a power system and a vehicle, relates to the technical field of vehicles, and aims to solve the problem of how to improve the space utilization of a vehicle. The engine assembly comprises an engine body tail gas treatment device, the engine body comprises an exhaust port; the tail gas treatment device is communicated with the exhaust port and is used for treating exhaust gas generated by the engine body, and the tail gas treatment device is arranged on the side of the engine body facing the vehicle head.

This invention relates to the field of engine technology, providing a horizontally opposed two-cylinder integrated engine, a range extender assembly, and a vehicle. The horizontally opposed two-cylinder integrated engine includes two cylinders positioned opposite each other on either side of a crankshaft, with the piston centerlines of the two cylinders parallel and coplanar. The cylinder block and cylinder head of each cylinder are integrally formed. The cylinder blocks of the two cylinders are connected as a whole by bolts. This invention adopts a two-cylinder structure, solving the problems of large size and complex structure of existing horizontally opposed engines with multiple cylinders, facilitating the miniaturization and weight reduction of the powertrain. Moreover, the integrally formed cylinder block and cylinder head eliminate the need for separate cylinder head assembly, avoiding the installation errors accumulated from multiple positioning in separate structures, while also reducing the number of sealing joint surfaces, improving airtightness and structural reliability.

An internal combustion engine block includes a cylinder block formed of a billet and defining at least one cylinder bore that terminate at a block deck surface, with a majority of the outer circumference of the at least one cylinder bore being surrounded by a cylinder wall. A water jacket channel is defined within the cylinder block at an upper end of the plurality of cylinder bores adjacent to the block deck surface. The water jacket channel is positioned external to the cylinder wall and surrounding a majority of an outer circumference of the at least one cylinder bore. A plurality of bridges span a width of the water jacket channel to connect to the cylinder wall and the cylinder block at the block deck surface. The engine block is formed by machining the billet with a computer numerical control machine with one to five axes or by additive manufacturing.

An oil sump, an engine, a hybrid assembly, and a vehicle. The oil sump is provided with a coolant channel; the oil sump is provided with a liquid outlet in communication with the coolant channel; and the liquid outlet is configured to be in communication with an engine body.

The invention relates to a vehicle comprising an internal combustion engine, a water outlet housing (10, 110) intended to bring said engine to an optimal operating temperature, and a cylinder head (1, 100) to which said water outlet housing (10, 110) is attached. According to the invention, the cylinder head (100) has a first face (102) into which opens at least one internal lubrication channel (104) and the water outlet housing (10, 110) has a second face (111) which is fixed to said first face (102), a sealing element (115) being inserted between the first face (102) and the second face (111) around an opening materializing an outlet of said at least one lubrication channel (104) into the first face (102), so that the second face (111) of the water outlet housing seals said at least one lubrication channel (104) tightly, thanks to a compression of the sealing element (115) between said two faces (102, 111).Figure for the abbreviation: Figure 6.

The application discloses a three-layer cross-flow type cylinder cover water jacket and a flow speed adjusting system thereof, and relates to the technical field of engine cooling systems. The three-layer cross-flow type cylinder cover water jacket comprises a main body assembly, a lower water jacket arranged on an engine cylinder cover, an upper water jacket arranged on the lower water jacket, and an intermediate water jacket arranged between the upper water jacket and the lower water jacket. The three-layer cross-flow type cylinder cover water jacket can realize uniform cooling by setting the main body assembly, the water pipe main body and the adjusting assembly. The water pipe main body is arranged at the water inlet of the lower water jacket and the water outlet of the upper water jacket, and comprises an inflow pipe, an adjusting pipe arranged at one end of the inflow pipe and an outflow pipe connected to the adjusting pipe at a position away from the inflow pipe. The adjusting assembly is arranged outside the water pipe main body and comprises a magnet fixed on the inflow pipe, an adjusting block sleeved on the outflow pipe at a position close to the magnet and a heat-sensitive winding wire fixed on the outflow pipe at a position away from the adjusting block. The heat-sensitive winding wire is arranged at a position where the temperature difference of the cooling water channel is relatively large. The electric current of the heat-sensitive winding wire is changed by the temperature generated by the engine, so that the magnetic force generated by the winding wire is changed to adjust the opening degree of the adjusting pipe, and the flow speed of the cooling liquid in the cooling system is changed to make the flow of the cooling liquid in the engine more reasonable.

The utility model relates to a motorcycle engine cylinder head heat radiation structure, including cylinder head body. Through the shape design of cylinder head and the optimization layout of cooling fin, formed two effective through air ducts around the high temperature exhaust pipe on the cylinder head. It has increased two through air ducts, can effectively take away the heat of high temperature exhaust port, and reduced the heat exchange area of high temperature exhaust and cylinder head, effectively improved the air cooling heat radiation effect of cylinder head.

An internal combustion engine for use with hydrogen fuel is provided, the engine having at least one cylinder assembly. Each cylinder assembly comprises a combustion chamber comprising a cylinder, a cylinder head and a reciprocating piston assembly; two inlet ports within the cylinder head, the inlet ports being selectively closable by a corresponding inlet valve; at least one outlet port within the cylinder head, the at least one outlet port being selectively closable by a corresponding outlet valve; at least one spark plug mounted to the cylinder head; and a piston assembly comprising a piston and a crankshaft. The engine further comprises a line passing through a centre of one of the inlet ports and a centre of a corresponding at least one outlet port. The line is arranged at a non-zero angle to an axis of rotation of the crankshaft and the line is at a non-right angle to the axis of rotation of the crankshaft. The cylinder head is secured by six fasteners, such as six bolts to an engine block defining the cylinder.