127results about "Cylinders" patented technology

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.

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.

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.

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 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.

The utility model provides a copper bush structure for moving die oil cylinder relates to moving die oil cylinder technical field, including copper bush main part, the front end and rear end of copper bush main part outer wall all are established annular oil storage groove, the intermediate region of copper bush main part outer wall evenly distributed has a plurality of radial auxiliary oil hole, the front end rear end of copper bush main body all is installed with sealing ring, the tiny concave point of copper bush inner wall is densely distributed in " honeycomb shape " and gradually sparse to another end, the taper flared micro -hole communication hole of combination oil storage groove, realize lubricating oil massage friction heat self -adaptation release, avoid local dry friction, in addition, the spiral groove in the inner wall is contrary to the piston movement direction, forms the pump suction effect, promotes the oil circulation, the supplementary oil hole directly supplements lubricating oil to the high pressure area, ensures the uniform distribution of oil film, reduces the wear and tear of copper bush and piston rod, prolongs the service life more than 50%.

This invention provides an engine. The engine includes a cylinder, a piston, a cylinder head, a first exhaust valve, a spark plug, a first injector, a second injector, a first deflector, and a second deflector. The piston is slidably connected to the cylinder. The cylinder head is connected to the cylinder and has a first exhaust passage. The first exhaust valve can selectively block the first exhaust passage. The spark plug is connected to the cylinder head. The first injector is connected to the cylinder head. The second injector is connected to the cylinder head. The first deflector is connected to the first injector and has a first injection orifice. The second deflector is connected to the second injector and has a second injection orifice. The cylinder, piston, and cylinder head define a combustion chamber. A portion of the first deflector and a portion of the second deflector are located within the combustion chamber. The first injection orifice faces the first exhaust valve, and the second injection orifice faces the spark plug. The engine is capable of forming a stratified air-fuel mixture, which is beneficial for combustion.

The utility model provides a cylinder head structure, engine and motorcycle. The cylinder head structure includes cylinder head body, rocker, roller and cylinder cover. One side of cylinder head body is equipped with inner chamber. Rocker is installed in inner chamber. One end of rocker is equipped with installation groove. The outside wall of rocker is equipped with oil storage chamber. The inner side wall of oil storage chamber is equipped with the oil outlet hole who communicates with installation groove. Roller is installed in installation groove. Cylinder cover is installed in the chamber mouth of inner chamber to close inner chamber. The inner wall of cylinder cover is equipped with first oil collecting rib who is used for collecting the oil liquid in inner chamber and guides the oil liquid to oil storage chamber. First oil collecting rib in the application can collect the oil liquid such as oil in inner chamber, and the collected oil liquid is guided to oil storage chamber, and the oil liquid in oil storage chamber flows to installation groove through oil outlet hole, so that the roller in installation groove is fully supplied and lubricated, the roller can be effectively lubricated under high speed, the problem of roller wear is solved, the service life of engine is prolonged, and the reliability of engine is improved.

The application provides a ship main engine cylinder body surface treatment process and system and a marine engine, and relates to the field of marine engine manufacturing. The application is aimed at the problem that the segmented cylinder body of a large marine engine is not convenient to implement overturning processing, which easily causes the center of gravity to deviate and collision damage. The application first folds all the cylinder bodies into a whole for rack end processing, reduces the local accumulated error caused by the thickness change of the sealing glue, then splits the whole cylinder body into multiple groups of combined cylinder bodies for separate overturning, so as to adapt to the lifting equipment capacity of the existing workshop. When splitting, the function cylinder body with a larger weight difference is arranged at the center position of the combined cylinder body, which balances the weight distribution on both sides of the special combined section, reduces the center of gravity deviation amplitude, and provides protection for the posture stability control in the turning process. While ensuring the overall machining precision of the segmented main engine cylinder body surface, the safety and engineering feasibility of the overall construction process are improved.

The application relates to an internal combustion engine and a cylinder head and a vehicle thereof. The cylinder head comprises a cylinder head shell, the cylinder head shell comprises a first wall body, a second wall body, a first flow guide rib and a second flow guide rib. The first flow guide rib is located between an air inlet duct away from a spark plug and an exhaust duct away from the spark plug, and the second flow guide rib is located between the first flow guide rib and the spark plug. The first flow guide rib comprises a first flow guide section and a second flow guide section connected in sequence along a liquid flow direction, and an extension line of a downstream end of the first flow guide section is provided with an intersection with a first reference line, and the intersection is located in a second heat exchange channel. The second flow guide section is closer to a first liquid outlet relative to the first reference line. The spacing between the first flow guide section and a second reference line gradually increases along the liquid flow direction. The first flow guide rib is reasonably arranged, so that the distribution of the cooling liquid is more reasonable, and then the cooling performance can be effectively improved, the abnormal melting loss of an electrode of the spark plug is prevented, and the product performance of the internal combustion engine is improved.

A cylinder head cover assembly (110, fig.1) includes a cylinder head cover 112 defining an internal volume 114 that receives a fuel component 116 and a leaked fuel. The cylinder head cover further def

The present application relates to the diesel internal combustion engine technical field, specifically to the piston and combustion system. The piston comprises a piston body, the top surface of the piston body is formed with a combustion bowl structure, the combustion bowl structure comprises a combustion surface and a throat, the combustion surface is provided with a groove opened along the radial direction of the piston body, and the groove penetrates the throat, the groove has the maximum depth at the middle part along the circumferential direction of the piston body, and the depth of the groove gradually decreases from the middle part to both sides along the circumferential direction. The groove bottom has the maximum depth at the circumferential middle part, and the depth monotonically decreases to both sides, forming an arc ridge geometry, so that the normal momentum of the spray beam is decomposed into radial outward expansion and circumferential bidirectional components after the spray beam hits the arc surface, the radial distribution uniformity is significantly improved, the equivalence ratio of the upper space and the bowl bottom area is balanced, the central fuel-rich core and the wall oil are weakened, the circumferential concentration field is more balanced, so that the combustion duration is shortened, the smoke peak is inhibited, and the cycle stability and thermal efficiency are improved.

This invention relates to an oil-cooled cylinder head structure and cooling method for an air-cooled diesel engine. The invention includes a cylinder head with a cylinder head cover on top; a side cover located on one side of the crankcase, the side cover having an oil inlet passage, a crankshaft bore, a camshaft bore, and an oil outlet passage inside; the oil inlet passage communicating with both the crankshaft bore and the camshaft bore, and the camshaft bore communicating with the oil outlet passage; an oil inlet assembly communicating with the oil outlet passage for drawing out pressurized oil from the side cover; and an injection assembly located on top of the cylinder head cover and communicating with the oil inlet assembly. The injection assembly guides the pressurized oil into the cylinder head cover and sprays it towards the fastening portion on the exhaust side of the cylinder head. Heat around the outer wall of the exhaust side of the cylinder head flows with the pressurized oil into the crankcase, then enters the radiator through the oil pump, is cooled, and flows back to the oil inlet passage. This invention solves the problem of cylinder head gasket blowout in large-bore air-cooled diesel engines.

This application relates to the field of engine technology, and discloses a cylinder head water jacket and an engine. The layered water jacket is located on the exhaust side of the main water jacket and is connected to the main water jacket. The upper water jacket is positioned opposite the upper exhaust passage, and the lower water jacket is positioned opposite the lower exhaust passage. The intermediate water jacket is located between the upper and lower exhaust passages and connects the upper and lower water jackets. A partial water jacket is located on the side of the intermediate water jacket adjacent to the main water jacket and near the exhaust port of the exhaust passage. One end of the partial water jacket is connected to the upper water jacket, and the other end is connected to the intermediate water jacket. Therefore, on the one hand, the initial temperature of the cooling medium can be reduced to improve the cooling effect; on the other hand, the probability of localized overheating at the exhaust port can be reduced, the probability of cylinder head cracking at the exhaust port can be reduced, the service life of the cylinder head can be extended, and the cooling effect can be improved, thereby enhancing the reliability and stability of the engine.

The utility model relates to the technical field of diesel engine assembly provides a cylinder cover tray with safety protection, including disc body, be equipped with with the sunken groove of cylinder cover modeling contour adaptation on the disc body for embedding cylinder cover and make the cylinder cover upside machining surface be in horizontal upward state, the tray still includes the fastening assembly for embedding cylinder cover fixed, the sunken groove and cylinder cover modeling contour adaptation make cylinder cover can embed on the disc body, and cylinder cover upside machining surface be in horizontal upward state convenient for preprocessing operation, the sunken groove groove bottom surface and cylinder cover outside surface contact and fit, embed cylinder cover fixed through fastening assembly again, to realize cylinder cover full support and limit position, have good safety protection function, make cylinder cover keep stable in the tray movement process, guarantee cylinder cover carrying safety.

Cylinder head assembly for an internal combustion engine, comprising:a cylinder head having a flame deck at least partially provided for covering a main combustion chamber and a cavity for receiving a pre-chamber component,a pre-chamber component arranged inside the cavity facing the flame deck, wherein the pre-chamber component comprises a pre-chamber, wherein the pre-chamber component comprises a first sealing surface which is in contact with and preloaded against a corresponding second sealing surface of the cylinder head sealing the cavity of the cylinder head.

A method for promoting the combustion of a combustible material, improving the power output of a combustion device and prolonging the service life of the combustion device by adding an alkali metal element and / or an alkaline earth metal element into the combustible material, relating to the technical field of combustion supporting. The method is applicable to various combustible materials and various combustion devices. A combustion device, and a fuel for promoting the combustion of a combustible material, improving the power output of a combustion device and prolonging the service life of the combustion device, respectively comprising a combustion device, and a fuel for nuclear fusion and nuclear fission. The method can enable all kinds of combustion devices to be reliably started and efficiently and safely work in any environment.

To reduce friction between the piston and the inner wall surface over a wide range in the axial direction of the cylinder. [Solution] The internal combustion engine according to this embodiment comprises a cylinder and a piston. The cylinder has an inner wall surface in which a plurality of first recesses are formed. The piston is disposed in an internal space covered by the inner wall surface. The piston comprises a piston body, a piston ring disposed on the outer circumferential surface of the piston body, and a solid lubricating film. The solid lubricating film is applied to the outer circumferential surface of the piston ring. The solid lubricating film alters the relationship between the speed at which the piston moves and the friction between the region on the inner wall surface in which the plurality of first recesses are formed and the piston ring, compared to a configuration without the solid lubricating film.

V-internal engine, wherein the internal combustion engine (2) comprises cylinders (3) arranged in a first row (4) and cylinders arranged in a second row (5) of the internal combustion engine (2), and a coolant passage that directs a coolant through the internal combustion engine (2), wherein the coolant passage comprises an inlet channel (15) arranged in a space between the rows (4, 5) of the internal combustion engine (2) and configured to receive coolant from an engine inlet line (6) and direct it to a cylinder circuit (21 to 23) in which the coolant cools the respective cylinders (3), and an outlet channel (18) configured to receive coolant from the respective cylinder circuits (21 to 23) and direct it to an engine outlet line (8), characterized in thatthat the exhaust port (18) in an engine block of the internal combustion engine (2) is arranged in a position halfway between the first row (4) and the second row (5) and below the intake port (15).

An internal combustion engine includes: a cylinder and a piston. The cylinder includes an inner wall surface in which a plurality of first recesses are formed. The piston is disposed in an inside space covered by the inner wall surface. The piston includes a piston body, a piston ring, and a solid lubrication film. The piston ring is disposed on an outer peripheral surface of the piston body. The solid lubrication film is coated on an outer peripheral surface of the piston ring. The solid lubrication film changes, relative to a structure in which the solid lubrication film is not coated, a relationship between a moving speed of the piston and friction between a region in which the plurality of first recesses are formed in the inner wall surface and the piston ring.

The utility model provides a kind of air cylinder head leak-proof structure with self-compensation sealing groove, it is related to air cylinder head technical field, including fixed subassembly, fixed subassembly includes the connecting plate connected in the side surface of connecting ring, the bottom of connecting ring is connected with first connecting pipe, the side surface of connecting plate is connected with fixed ring, the bottom of fixed ring is connected with sleeve, the bottom of sleeve is provided with lug, by being provided with connecting plate, to be able to provide support to sleeve, by being provided with sleeve, to be able to cooperate lug and realize the quick connection and disassembly of connecting ring and protective shell, subsequent maintenance is facilitated to seal element, by being provided with first connecting pipe, to be able to provide mounting space for seal element while protecting the internal parts of air cylinder body, ensure that seal element can work stably.

A control method for achieving high cylinder bore position precision of a V12 engine cylinder block. A non-uniform scaling design is used, the scaling of a cylinder block is no longer a mean value x, and is divided into a scaling in the X direction of cylinder bore arrangement, a scaling in the Y and Z directions, and a scaling of the inner wall of a region around a cylinder liner along the axis direction of the cylinder liner, with the proportional relationship being: x, x(1+a), and 0. Also disclosed is a V12 engine cylinder block, which is manufactured by means of the control method for achieving high cylinder bore position precision of a V12 engine cylinder block. The control of the solidification contraction of aluminum alloys on the position precision of cylinder bores in the cylinder block is implemented by means of the non-uniform scaling design, the effect of core assembly errors on the position precision of the cylinder block is reduced by means of the design of a core assembly mode, and the position precision of cylinder bores is further improved by means of the control of the precision of sand cores and the design of the anti-deformation allowance of sand cores.

The goal is to significantly reduce friction at high speeds while also reducing friction at low speeds. [Solution] The cylinder according to the embodiment has an inner wall surface in which multiple types of recesses are formed, offset by type in the direction of piston movement. Each type of recess has a different effect on the relationship between the friction between the inner wall surface and the piston with respect to the speed at which the piston moves. On the inner wall surface, at least one of the multiple recess rows is formed offset from other recess rows in the direction of movement by the multiple types of recesses. In each of the multiple recess rows, two or more of one type of recess are arranged in the circumferential direction. In adjacent recess rows in the direction of movement, two or more recesses in the upper recess row and two or more recesses in the lower recess row are arranged alternately along the circumferential direction, and the lower end of the upper recess row is located below the upper end of the lower recess row.

This application relates to the field of cylinder liner technology, specifically to a bimetallic cylinder liner based on a casting-to-forging process. The bimetallic cylinder liner is manufactured through the following steps: heating steel, then upsetting it in a pre-forging die, followed by primary and secondary extrusion molding, removing the connecting skin at the bottom of the cup-shaped part to form a through hole, and then heat-treating and cooling to obtain a forged outer sleeve; centrifugally casting a high-silicon aluminum alloy, followed by precision machining of the outer diameter to obtain an inner liner; cleaning the inner surface of the outer sleeve and the outer surface of the inner liner, placing the outer sleeve in a heating furnace for heating, and then placing the room-temperature inner liner into the hot outer sleeve for cooling, thus obtaining a bimetallic cylinder liner based on a casting-to-forging process. The cylinder liner prepared in this application exhibits high impact resistance and strong pressure-bearing capacity.