410results about "Casings" patented technology

The invention belongs to the technical field of material processing, and discloses a magnesium alloy casting semi-solid injection molding method and application, and the method comprises the following steps: checking and adjusting a semi-solid injection machine, a casting mold and other equipment to be in a normal state, and placing magnesium alloy particles in a designated area of a hopper; putting a long nozzle of the semi-solid injection platform into the center of a mold sprue; setting the temperature of each section of a mold temperature controller, a charging barrel and a nozzle; preserving heat for a period of time after the temperature of the charging barrel reaches a set value, so that the temperature of materials in the charging barrel is uniform; setting the injection rate, the cooling time, the material return distance and the melt pressure of the semi-solid injection machine; and after a release agent is quantitatively sprayed to the mold, a semi-solid injection program is started, and a casting is obtained. The AS41B magnesium alloy particles with good heat resistance are adopted as the raw material, the semi-solid injection molding method is combined, a melting furnace is not needed, only heating to the semi-solid state is needed, the melt temperature is low, energy is saved, the service life of a mold is prolonged, protective gas is not needed, and the manufactured casting is good in mechanical property and high in heat resistance.

A preparation method of porous hafnium carbide superhigh-temperature ceramic is characterized by comprising the following steps: dispersing graphene oxide in a solvent to form a graphene oxide dispersion liquid, mixing a monomer hafnium source solution with the graphene oxide dispersion liquid, and carrying out hydrothermal treatment on a hafnium oxide carbon precursor network structure to obtain the porous hafnium carbide superhigh-temperature ceramic. The organic-inorganic hybrid precursor is subjected to two-stage heat treatment, the first stage is inorganic treatment, the second stage is carbon thermal reduction reaction, and the porous hafnium carbide ultrahigh-temperature ceramic material is obtained. Graphene oxide is used as a structure-directing agent and an in-situ carbon source, a monomer hafnium source is uniformly anchored on the surface of a GO sheet layer on the molecular scale, an organic-inorganic hybrid precursor is formed, after the precursor is subjected to hydrothermal crosslinking, Hf species and a carbon skeleton are highly mixed on the nanoscale, and the Hf / GO composite material is obtained. And the subsequent carbon thermal reduction reaction can be efficiently completed in a low-temperature interval of 1300-1450 DEG C.

The invention relates to the technical field of oil cylinder detection, and discloses a movable engine unit protection mute shell and an engine unit, the movable engine unit protection mute shell comprises a cabinet body, a door body is arranged on the front side of the cabinet body, a mute plate is embedded in the inner wall of the cabinet body, an electric sliding rail is arranged in the cabinet body, and a sliding plate is slidably connected to the upper side of the electric sliding rail; a diesel engine unit is fixedly installed on the upper surface of the sliding plate, a cooling mechanism is arranged in the cabinet body, a heat exchange pipe is filled with cooling liquid, when the diesel engine unit works, generated heat enables the cabinet body to be filled with high-temperature gas, and at the moment, the cooling liquid in the heat exchange pipe and the high-temperature gas in the cabinet body generate a heat exchange effect; the temperature in the cabinet body is reduced, heat in the cabinet body is eliminated, and the technical problems that an existing generator set can generate some heat in the working process, and if the heat in the closed cabinet body cannot be eliminated, the heat can damage the cabinet body and generator set equipment are solved.

The utility model relates to the technical field of automobile accessories, in particular to an automobile valve chamber cover which comprises a cover body, an oil-gas separation cover and a protective buckle cover, an installation area is arranged on the cover body, and a backflow hole and an oil-gas outlet are formed in the installation area. The oil-gas separation cover is buckled on the mounting area and forms an oil-gas cavity and a waste gas transition cavity which are mutually independent, the oil-gas separation cover is provided with a waste gas discharge port and at least one oil-gas inlet, and the oil-gas inlet and the oil-gas outlet are both communicated with the oil-gas cavity; the protection buckle cover is buckled on the oil-gas separation cover, the backflow hole and the waste gas discharging opening are both communicated with the waste gas transition cavity, and a waste gas valve is arranged in the waste gas discharging opening. The automobile valve chamber cover adopts a split design and is convenient to manufacture and low in replacement cost.

The present invention addresses the problem of providing, in a state ensuring high strength, a cover responsible for the protection and noise insulation of a crank pulley, auxiliary drive belt, etc., in a longitudinal engine in which a crankshaft is disposed facing toward the front of the vehicle body. This cover 30 includes a sound absorbing body 33 made of a material such as hard urethane, and a hard reinforcing body 34 in which the sound absorbing body is insert-molded, the cover being formed in a tray shape as a whole. Fastening parts 35-38 fixed to the engine by bolts are provided to outer ends of the reinforcing body 34. Since the pressing force from the bolts does not directly affect the sound absorbing body 33, high fastening strength can be achieved while ensuring a high protection function and sound insulation function.

An internal combustion engine (10) includes a one-piece cylinder block casting (12), a flywheel (24) supported for rotation at a front block end (20), and a back gear train (30) supported for rotation at a back block end (22). Cast-in pump inlet and outlet passages (58,60) are formed in the cylinder block casting (12) and open in a pump mounting face (50) at the back block end (22). An oil pump (52) is clamped to the pump mounting face (50) and includes a pump inlet (54) and a pump outlet (56) fluidly connected, respectively, to the cast-in pump inlet passage (58) and the cast-in pump outlet passage (60).

Device for cooling a vehicle engine, comprising: a combustion chamber in which a piston moves back and forth; Water jackets (16a, 16b) through which a coolant flows to cool the combustion chamber; and a cylinder block (1) which forms a frame of the vehicle engine, wherein the cylinder block (1) comprises: a cylinder block body (10) in which the combustion chamber is formed, and an exhaust gas recirculation (EGR) cooler (30) which is mounted in the cylinder block body (10) in such a way that the EGR cooler (30) exchanges heat with a coolant discharged from the combustion chamber, wherein the cylinder block body (10) is provided with an EGR cooler insertion section (20) to which a coolant from the combustion chamber is supplied and in which the EGR cooler (30) is inserted, wherein the EGR cooler (30) is provided with a gas pipe (36) in which an exhaust gas flows, wherein the exhaust gas of the gas pipe (36) is cooled by a coolant which is supplied to the EGR cooler insertion section (20), wherein a supply opening (12) is configured to supply a coolant to the EGR cooler insertion section (20) in which cylinder block body (10) is formed, wherein the cylinder block body (10) has a plurality of cylinder chambers (18), wherein the water jackets (16a, 16b) have a circulation flow channel (16b) configured to exchange heat with all cylinder chambers (18) and a direct flow channel (16a) configured to exchange heat with one of the cylinder chambers (18), wherein the feed opening (12) is formed at a point where the circulation flow channel (16b) and the direct flow channel (16a) meet, wherein the water jackets (16a, 16b) have an arc shape which encloses the outer circumferences of the cylindrical chambers (18), and wherein the EGR cooler insertion section (20) is designed such that it extends horizontally in the longitudinal direction of the cylinder block body (10).

A cover assembly for an engine includes a gear plate. The gear plate includes a plate body defining an opening, and a plate wall contiguous with the plate body along the opening and extending at a first angle away from the plate body. The cover assembly also includes a cover including a cover rim contacting the plate body along the opening and a cover body positioned adjacent to the plate wall and defining a groove. The groove is defined by a first groove surface, a second groove surface positioned a distance away from the first groove surface, and a third groove surface extending at a second angle from the first groove surface to the second groove surface. The cover assembly also includes a sealing member positioned in the groove and contacting the plate wall.

The application discloses a V-type diesel engine body structure, which comprises a body, at least two camshaft holes, a main oil passage for providing lubricating oil for the camshaft in the camshaft hole, two water distribution passages and two water collecting passages, the two water collecting passages are connected with water outlets at the front end of the body respectively, camshaft chambers are arranged on both sides of the camshaft hole on the body, the camshaft chambers are connected with lower cooling cavities of cylinder sleeves through splash oil and oil gas inlets, the lower cooling cavities of the cylinder sleeves are connected with crankcase cavities through splash oil return gaps, and the camshaft chambers are connected with the crankcase cavities. The structure of the application is divided into upper and lower parts for cooling, and the upper part is cooled by cooling liquid; since the lower part of the cylinder sleeve has small thermal load, the structure of the application uses non-forced cooling, splash oil and oil gas splashed by rotation of camshaft bearings are used to cool the lower part of the cylinder sleeve in a small amount, so that appropriate benefits are achieved, and excessive cooling to cause engine heat loss is avoided.

The present invention suppresses suction of gas from a suction passage. An internal combustion engine (10) for a vehicle is provided with a cylinder (23A), an intake passage (10A), a crank chamber (10Z), a suction passage (80Z), and an introduction passage (60Z). The intake passage (10A) introduces intake air into the cylinder (23A). The crankshaft chamber (10Z) accommodates a crankshaft (33). In addition, oil is stored in the crank chamber (10Z). The suction passage (80Z) sucks oil stored in the crank chamber (10Z). The introduction passage (60Z) introduces a portion of the intake air flowing through the intake passage (10A) into the crank chamber (10Z). The introduction passage (60Z) includes a main passage (63Z) and a plurality of outlet passages (64Z). The main passage (63Z) extends from the outside of the crank chamber (10Z) to the inside of the crank chamber (10Z). The outlet passage (64Z) discharges intake air flowing through the main passage (63Z). The outlet passage (64Z) extends from the main passage (63Z) toward the suction passage (80Z) when viewed from a direction along the vertical axis of the vehicle.

The utility model relates to the technical field of automobile engine parts, and discloses an automobile engine bearing cover structure which comprises an outer shell, a plurality of oil storage shells are arranged on the surface of the outer shell, oil injection ports are formed in the surfaces of the oil storage shells, a plurality of oil outlet holes are formed in the surfaces of the oil storage shells, and the oil outlet holes are communicated with the oil storage shells. Piezoelectric ceramic vibrating pieces are arranged on the two sides of an inner cavity of the oil storage shell correspondingly, and the impurity removing mechanism is matched with the piezoelectric ceramic vibrating pieces to treat oil impurities. When the device is used for adding lubricating oil, the oil filling port can be conveniently exposed under the action of the covering mechanism, so that the purpose of adding the lubricating oil is achieved, and under the arrangement of the covering mechanism, the connection between the covering mechanism and the oil filling port is improved, the possibility of loosening caused by vibration is reduced, and the service life of the device is prolonged. And in addition, under the action of an impurity removal mechanism, a worker can conveniently clean impurities in the inner cavity of the oil storage shell, and the practicability of the device is improved.

The application discloses an engine and a motorcycle adopting the engine. The engine comprises a shell part, a bolt fastener and a sealing washer. The bolt fastener is arranged in the sealing washer and connected with the shell part. The sealing washer comprises a sealing hole for the bolt fastener. A convex part capable of being elastically deformed is formed on the inner wall of the sealing hole. The convex part makes the inner diameter of the sealing hole smaller than the diameter of the bolt fastener. Through the above arrangement, the assembly efficiency of the bolt fastener can be improved.

This utility model discloses a vibration damping structure for an engine front cover, including an outer shell. A vibration damping turbine is installed inside the outer shell, and the turbine is connected to the outer shell via vibration damping bolts. A sealing cover is installed on one side surface of the turbine, and a sealing front cover is detachably installed on the side surface of the sealing cover. A cooling impeller is installed between the vibration damping turbine and the outer shell. This utility model provides convenient sealing and assembly of the engine front cover components, using vibration damping bolts to connect and align the various cover shells. It offers advantages such as good sealing and a tight, stable connection, effectively preventing the shell from loosening due to significant engine vibration during operation. Simultaneously, the internal and external heat dissipation design of the shell allows for rapid heat dissipation from the engine, providing excellent cooling performance. The planetary gear transmission mechanism integrated into the end cover shell, combined with an eccentric wheel structure, effectively reduces vibration at the shaft end.

An internal combustion engine 10 having a cylinder block 11 in which a plurality of cylinders 12 is arranged and a crankshaft (27, Fig. 2); At least one first cylinder 12a is centred relative to the crankshaft axis (ZZ, Fig. 2) such that its longitudinal axis (VV, Fig. 2) is perpendicular to the crankshaft axis and at least one second cylinder 12b is offset relative to the crankshaft axis (ZZ, Fig; 2) such that its longitudinal axis (WW, Fig. 3) is laterally offset from a plane defined by the crankshaft axis (ZZ, Fig. 2) and the longitudinal axis of the first cylinder (VV, Fig. 2). The invention aims to reduce friction in an engine that may deactivate cylinders in use.

The utility model discloses a motorcycle engine cover, which relates to the field of engine covers and comprises an engine body, a cover is arranged on the engine body, a first fixing component matched with the cover is arranged on the outer wall of the engine body, and a second fixing component is arranged on the cover. A butt joint groove is aligned with a second mounting block, then the machine cover is rotated, so that a first mounting block slides in a sliding groove, fixation is completed, on the contrary, the machine cover needs to be rotated to rotate the butt joint groove to the position of the second mounting block, the machine cover can be disassembled, through a second fixing assembly, the machine cover is conveniently fixed, and two clamping grooves form dislocation; the knob is pushed to enable the sliding rod to drive the clamping block to move downwards to enter the first clamping groove, when the clamping block penetrates through the first clamping groove to reach the second clamping groove, the knob is rotated to enable the clamping block to rotate, the clamping block moves upwards under the action of the elastic piece and is blocked by the first clamping groove, and fixing is completed.

The invention relates to an assembly comprising a heat engine equipped with a cylinder head (2) covered by a cylinder-head cover (4), which between them receive at least one camshaft having, on one side, a joining edge parallel to its axis, which is formed between two flat surfaces, and comprising a tool for adjusting the rotation of the camshaft, which tool fits into a bore in the cylinder-head cover, the adjustment tool comprising an attachment part (20) for attachment to the cylinder-head cover (4), and an independent rod comprising, at its end, a notch having two bearing faces which, in the fixed position of the tool, bear on the two surfaces of the camshaft on either side of the edge.

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 application provides an engine cylinder block assembly, an engine, and a vehicle. The engine cylinder block assembly includes a cylinder block portion and a crankcase, wherein the cylinder block portion and the crankcase are integrally formed or fixedly connected. The side walls of the cylinder block portion and the crankcase have oil return channels that connect the cylinder head side of the cylinder block portion to the oil pan side of the crankcase. The side wall of the oil return channel has a first opening, and the side wall of the crankcase also has an oil return labyrinth that communicates with both the first opening and the inner cavity of the crankcase. The oil return labyrinth is configured to allow oil to flow through the labyrinth into the inner cavity of the crankcase when the oil level in the oil return channel exceeds a first threshold, and to prevent oil from entering the inner cavity of the crankcase when the oil level in the oil return channel is less than or equal to the first threshold. This engine cylinder block assembly ensures rapid oil return even when the engine is tilted at a large angle, preventing poor lubrication.

The application discloses a motorcycle engine mounting structure, which separates the crankcase of the engine from the transmission case, fixes the crankcase and the cylinder head on the frame, connects the transmission case with the crankcase through a first bearing to form a rotary connection relationship, connects the rear end of the transmission case to the frame through a rear shock absorber, and enables the whole transmission case and the rear wheel to rotate around the crankshaft center of the crankcase, so that the riding vibration and the engine shaking can be reduced and alleviated by the rear shock absorber, the vibration is prevented from being directly transmitted to the vehicle body, and the riding comfort of the user can be improved. In addition, the first bearing, the first shaft sleeve, the compression nut and the retainer ring are combined to limit the axial movement of the bearing, ensure that the bearing and the shaft sleeve are not separated, and ensure that the transmission case stably rotates around the crankshaft center of the crankcase. The axial stability of the bearing is further improved, and the reliability of power transmission and the stable operation of the transmission system are ensured.

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.

An internal combustion engine includes a first cylinder block, a first head, a first overhead structure, a second cylinder block, a second head, a second overhead structure, a first through-bolt aperture, and a first through-bolt. The first head is in contact with the first cylinder block. The first overhead structure is in contact with the first head opposite the first cylinder block. The second cylinder block is in contact with the first cylinder block opposite the first head. The second head is in contact with the second cylinder block opposite the first cylinder block. The second overhead structure is in contact with the second head opposite the second cylinder block. The first through-bolt aperture is defined through the first overhead structure, the first head, the first cylinder block, the second cylinder block, the second head, and the second overhead structure.

The utility model discloses a multifunctional heat-insulating and sound-absorbing cover assembly of a vehicle cylinder, which comprises a cover body, spherical caulking grooves, a heat-insulating and sound-absorbing cover, a heat-insulating and sound-absorbing cover and a heat-insulating and sound-absorbing cover, the sound insulation cover is arranged above the cover body, a cover cavity is formed in the sound insulation cover, and air holes communicated with the cover cavity are formed in the upper portion and the lower portion of the sound insulation cover; and the sound insulation cotton is filled in the cavity of the cover. The sound insulation cover is arranged above the cover body, the cover cavity is formed in the sound insulation cover, the air holes are formed in the upper portion and the lower portion of the sound insulation cover, and the sound insulation cotton is filled in the cover cavity, so that the cylinder head cover has high noise reduction and heat insulation performance. Meanwhile, the spherical caulking grooves are formed in the two sides of the cover body, the protruding spherical limiting blocks are arranged below the sound insulation cover, and the spherical limiting blocks are embedded in the spherical caulking grooves, so that the sound insulation cover is fast and stable to install and cannot be loosened due to vibration of an engine cylinder.

Mounting bracket (100), comprising: a mounting body (102) defining a first opening which is positioned to be aligned with a second opening in a cylinder head (600), wherein the support body (102) comprises a first flange which is arranged in the first opening, the first flange defining a first hole; a threaded insert (118) which is received in the first opening between the cylinder head (600) and the first flange, the threaded insert (118) comprising: an outer surface (612) which engages with the first opening via a thread; an inner surface (610) that defines a second hole; and a front face (614); wherein a rotation of the threaded insert (118) in the first opening enables a selective repositioning of the threaded insert (118) in the first opening; and a fastening element (116) designed to be received in the first hole and the second hole, wherein the fastening element (116) is designed to engage threadably in the second opening, wherein the fastening element (116) comprises a second flange designed to connect to the first flange when the fastening element (116) is screwed into the second opening; wherein the second hole is designed to accommodate a tool for selectively rotating the threaded insert (118).

The invention relates to the technical field of engines, and discloses an integrated timing cover which comprises a timing cover body, an extension frame is fixedly mounted at the top of the timing cover body, a mounting head is fixedly mounted at the bottom of the extension frame, a bearing assembly is fixedly mounted on a frame, and a moving assembly and a damper are arranged on the bearing assembly. The function of the suspension support and the timing cover are integrated, an integrated structure of the extension frame and the timing cover body is formed, the number of parts and assembly links are reduced, compact layout and effective light weight of an engine are achieved, and meanwhile the manufacturing cost is reduced; according to the integrated design, a vibration transmission path is optimized, a multi-stage vibration reduction system is formed in combination with conversion and guidance of a motion assembly composed of the connecting plate, the transmission plate and the like on the vibration direction and efficient absorption and dissipation of the damper on vibration energy, and transmission of vibration of an engine to a frame is restrained.

The invention relates to the technical field of energy generators, and discloses a mute box body of a fuel generator set and a using method thereof.The mute box body comprises a box body, a box door is arranged on the front side of the box body, a mute plate is embedded in the inner wall of the box body, a supporting seat is movably connected to the inner bottom face of the box body, and the fuel generator set is fixedly installed at the top of the supporting seat; a gas temporary storage box is arranged on the outer side of the box body, a cooling mechanism used for cooling the fuel oil generator set is arranged in the box body, cooling water is filled into a heat exchange pipe to absorb heat generated when the fuel oil generator set works, and a mute plate is used for conducting sound insulation when the fuel oil generator set works. The technical problems that an existing fuel oil generator set can generate some heat in the working process, and if heat in a closed box cabinet body cannot be eliminated, the heat can damage the cabinet body and fuel oil generator set equipment are solved.

The present invention provides a highly versatile attachment / detachment jig that allows for easy insertion and removal of the object to be attached into the mounting hole formed in the mounting body. [Solution] The attachment / detachment jig 1 of the embodiment is attached to the on / off valve 106 and comprises a feed screw portion 2 extending axially in the valve insertion recess 111, a nut portion 3 that engages with the feed screw portion 2, a support shaft portion 4 attached to the engine block 105, and a connecting portion 5 that is connected to the nut portion 3 and the support shaft portion 4 and connects the feed screw portion 2 and the support shaft portion 4. The connecting portion 5 is provided so as to be able to adjust the axial distance between the feed screw portion 2 and the support shaft portion 4.

Fuel Rail Impact Protection Device The invention relates to an impact protection device (1) for a fuel rail comprising a protection means (2) and a support means (3) intended to be mounted on an engine block (10) of a motor vehicle, characterized in that the protection means (2) comprises a contact wall (11) fixed to the support means (3) by fastening means (5) and a cover wall (12) fixed to the support means (3) by additional fastening means (6), the contact wall (11) being intended to come into contact with a crossmember (8) of the motor vehicle in the event of an impact and comprising at least one rounded edge as well as a first vertical end (16) by which said contact wall (11) is extended perpendicularly by the cover wall (12). (Figure 1)

A rocker housing is configured to enclose a rocker shaft and rocker arms connected to push rods that protrude from a cylinder head of an internal combustion engine. The rocker housing comprises a sidewall configured to enclose the rocker shaft and a top wall extending laterally from an upper portion of the sidewall so as to extend over the rocker arms. The rocker housing further comprises an aperture configured to accommodate a fuel injector or a fuel supply pipe for supplying fuel to a fuel injector of the internal combustion engine. The rocker housing further comprises a fuel return channel extending within at least a part of the sidewall. The fuel return channel comprises an inlet at the interior surface of the sidewall configured to receive excess fuel from the injector; an outlet at an exterior surface of the sidewall configured to output the excess fuel, wherein the outlet is laterally offset from the inlet; and an interior passage extending between the inlet and the outlet. The interior passage is formed integrally in the sidewall of the rocker housing between the interior surface of the sidewall and the exterior surface of the sidewall. The interior passage has a minor component in a direction between the interior surface and the exterior surface of the sidewall and has a major component in a direction of lateral offset between the inlet and the outlet.

To provide an engine including a wiring structure capable of suppressing vibration and noise while simplifying wiring of wire harnesses.SOLUTION: A wire assembly 40 is constituted by holding a plurality of wire harnesses 30 by protectors 41, 42 and putting them together with a shape suitable for wiring. An engine cover 10 is mounted on a cylinder head 50 in a state of holding the wire assembly 40 and a sound absorber 20 between the cylinder head 50 and the engine cover 10 and elastically deforming the sound absorber 20. The protectors 41, 42 are pressed toward the cylinder head 50 by restoring force of the sound absorber 20. The sound absorber 20 has an engagement portion 21 thicker than a thickness of a contact region on a peripheral edge portion of the contact region pressed to the protectors 41, 42, and the engagement portion 21 is disposed in adjacent to side faces of the protectors 41, 42.SELECTED DRAWING: Figure 1