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Magnesium alloy casting semi-solid injection molding method and application
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.
Owner:FAW CASTING CO LTD
CVT cooling system of engine, engine and motorcycle
PendingCN119435231ASimple structurereduce manufacturing costCasingsMachines/enginesManufacturing cost reductionDrive wheel
The CVT cooling system of the engine comprises a CVT, a left crankcase body and a left crankcase cover, a CVT cavity is formed between the left crankcase body and the left crankcase cover, the CVT is assembled in the CVT cavity, a shoe block component of a driven wheel in the CVT is located on the side of the left crankcase body, a breathing groove outer cover plate is arranged on the left crankcase cover, and the breathing groove outer cover plate is arranged on the left crankcase cover. The breathing groove outer cover plate is provided with a first main air inlet, a second main air inlet and a first auxiliary air inlet, the left crankcase cover is provided with a filter screen assembly, the left crankcase cover is provided with a third main air inlet and a second auxiliary air inlet, the breathing groove outer cover plate is provided with blocking ribs, and part of cooling air enters a CVT cavity sequentially through the first auxiliary air inlet and the second auxiliary air inlet. In order to simplify the structure, reduce the manufacturing cost and effectively reduce the risk that muddy water enters the filter screen assembly, a blocking rib is arranged on the side, close to the filter screen assembly, of the first main air inlet of the breathing groove outer cover plate, and the muddy water is effectively prevented from being sprayed to the filter screen assembly.
Owner:LONCIN MOTOR CO LTD +2
Motorcycle engine crankcase body with oil separation chamber
The utility model discloses a motorcycle engine crankshaft box body with an oil separation chamber, which comprises a crankshaft box body formed by connecting a left crankshaft box body and a right crankshaft box body, crankshaft mounting holes and balance shaft mounting holes are arranged on the left crankshaft box body and the right crankshaft box body, and the crankshaft mounting holes and the balance shaft mounting holes are distributed in a pairwise corresponding mode. An oil collecting chamber is arranged at the lower end in the crankcase body, and the balance shaft mounting hole is arranged close to the maximum oil liquid level position of the oil collecting chamber; the bottom of the oil collection chamber is provided with an oil separation chamber which is arranged close to the balance shaft mounting hole, the upper end of the oil separation chamber is close to the maximum oil liquid height of the oil collection chamber, and one side, far away from the balance shaft mounting hole, of the oil separation chamber is provided with an oil inlet hole; an engine oil filter screen is arranged in the oil separation cavity, and an oil guide channel with one end communicated with the oil separation cavity and the other end communicated with an oil inlet of the engine oil pump is arranged on the side of the oil separation cavity.
Owner:CHONGQING SHINERAY MOTORCYCLE
Engine and vehicle comprising same
An engine and a vehicle comprising same. The engine comprises a main cylinder body (10), end covers (30), a timing cover (50), and an oil pan (60), wherein a left cylinder body (101) and a right cylinder body (102) of the main cylinder body are arranged in the left-right direction; the left cylinder body and the right cylinder body define a crankshaft cavity (20); the left cylinder body and the right cylinder body are each provided with a combustion chamber (11) extending in the horizontal direction; the end covers comprise a left cylinder cover (301) provided on the left side of the left cylinder body and a right cylinder cover (302) provided on the right side of the right cylinder body; the timing cover is located on one side of the main cylinder body and is fixed to at least one of the left cylinder body, the right cylinder body, the left cylinder cover and the right cylinder cover; the oil pan is arranged on the lower portion of the main cylinder body and is communicated with the crankshaft cavity.
Owner:BYD CO LTD
Camshaft box, engine and vehicle
The invention discloses a cam shaft box, an engine and a vehicle, the cam shaft box comprises an ignition coil mounting hole, the ignition coil mounting hole is used for mounting an ignition coil, the ignition coil mounting hole comprises a sealing section, and the ignition coil is matched with the inner wall of the sealing section; and the exhaust hole is formed in the side wall of the ignition coil mounting hole and located in the lower side of the sealing section, and the ignition coil mounting hole is communicated with the outside through the exhaust hole. The exhaust hole is formed in the lower side of the sealing section, exhaust does not need to pass through the sealing section, and exhaust is smoother.
Owner:BYD CO LTD
Cylinder cover assembly, horizontally opposed engine, hybrid power assembly and vehicle
The embodiment of the invention provides a cylinder cover assembly, a horizontally-opposed engine, a hybrid power assembly and a vehicle, the cylinder cover assembly comprises a body, an air flow channel and a cooling liquid channel are arranged in the body, and the body comprises a lower side and an upper side which are arranged in a deviating mode in the vertical direction; the airflow channel comprises an air inlet and an air outlet, the air inlet is formed in the lower side, and the air outlet is formed in the upper side; the cooling liquid channel surrounds at least part of the airflow channel and comprises a water inlet and a water outlet, the water inlet is formed in the lower side, and the water outlet is formed in the upper side. The air inlet of the airflow channel and the water inlet of the cooling liquid channel are formed in the lower side, and the exhaust port of the airflow channel and the water outlet of the cooling liquid channel are formed in the upper side, so that the influence of bubbles on cooling liquid flowing can be reduced, accumulation of the bubbles can be avoided, and the cooling effect of the cylinder cover assembly can be improved.
Owner:BYD CO LTD
Preparation method and application of porous hafnium carbide superhigh-temperature ceramic
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.
Owner:HARBIN INST OF TECH
Air-cooled diesel generating set
The invention discloses an air-cooled diesel generator set, and particularly relates to the technical field of generators, the air-cooled diesel generator set comprises a base, the upper end of the base is slidably connected with diesel power generation equipment through a sliding rail, the front end of an output rotor of the diesel power generation equipment is fixedly connected with a fan located in an inner cavity of a dustproof dehumidification structure, and an air duct structure is arranged on the inner surface of a shielding box. And a dustproof dehumidification structure is arranged at the front part of the inner surface of the shielding box. According to the air-cooled diesel generating set, the dehumidification assembly is arranged and used for removing moisture in sucked air, and corrosion of the moisture to internal parts is reduced; furthermore, dust and particles in the air are separated and sucked through the effect of the dustproof assembly, entering of large-particle dust is reduced, dust on the cooling fins can be periodically cleaned through automatic cleaning in the dustproof assembly, and the air inlet amount is guaranteed; meanwhile, the air flowing efficiency is improved through the effect of the air duct structure, the heat dissipation area is increased, the heat dissipation effect is enhanced, and performance reduction and potential safety hazards caused by overheating are avoided.
Owner:HUNAN SHANLI YUCHAI NEW ENERGY ELECTROMECHANICAL CO LTD
Air-cooled diesel generator set
The application discloses a kind of air-cooled diesel generating set, specifically relates to the technical field of generator, including base, the diesel generating equipment is slidably connected with the upper end of base by slide rail, the fan in the dustproof dehumidification structure inner cavity is fixedly connected with the output rotor front end of diesel generating equipment, the inner surface of shielding box is provided with air duct structure, and the dustproof dehumidification structure is provided in the front of the inner surface of shielding box.The air-cooled diesel generating set of the application is removed by setting dehumidification component for removing moisture in inhaled air, reduce the corrosion of moisture to internal parts;Further, dust and particles in inhaled air are separated by the action of dust removal component, the entry of large-particle dust is reduced, dust on the cooling fin can also be periodically cleaned by automatic cleaning in dust removal component, to ensure the air intake;Air flow efficiency is improved by the action of air duct structure, the heat dissipation area is increased, the heat dissipation effect is enhanced, and the performance decline and safety hazards caused by overheating are avoided.
Owner:HUNAN SHANLI YUCHAI NEW ENERGY ELECTROMECHANICAL CO LTD
Off-road vehicle
A vehicle shown herein is a side by side utility vehicle having a powertrain an engine with at least three cylinders, an intake and an exhaust, where the intake is forward of the engine and the exhaust is rearward of the engine. The vehicle may further or alternatively include an engine block configured to couple with various transmissions without alteration of the engine block itself.
Owner:POLARIS IND INC
All-terrain vehicle and its engine
The present invention discloses an all-terrain vehicle and its engine. The engine includes: a cylinder provided with an exhaust port and a first cooling channel; a crankcase disposed below the cylinder, the top of the crankcase being spaced a predetermined distance from the exhaust port, the crankcase including a second cooling channel communicating with the first cooling channel; a water pump disposed on one side of the crankcase; a cylinder inlet pipe, one end of the cylinder inlet pipe being connected to the water pump, the cylinder inlet pipe being fixedly attached to the top of the crankcase and spaced apart from the cylinder, and the other end of the cylinder inlet pipe communicating with the second cooling channel. Thus, the cylinder inlet pipe and the exhaust pipe can be effectively spaced apart further, so that the high-temperature exhaust pipe can be prevented from affecting the low-temperature cylinder inlet pipe, the cooling water temperature of the cylinder inlet pipe can be effectively reduced, the working reliability of the engine can be ensured, and the fuel efficiency of the engine can be improved.
Owner:NINE INTELLIGENT CHANGZHOU TECH CO LTD
Movable type engine unit protection mute shell and engine unit
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.
Owner:JIANGSU TAIPU POWER MACHINERY
Cylinder head, cylinder head cover, cylinder head assembly and piston engine
The cylinder head (1) for a piston engine comprises an inlet port (9), a fuel injector hole (7), an oil supply channel (11) having an inlet end (11A) and an outlet end (11B) opening onto a top surface (1B) of the cylinder head (1), a first injector cooling channel (13) for supplying cooling oil to the fuel injector hole (7), arranged in fluid communication with the oil supply channel (11) and having an outlet end (13B) opening into the fuel injector hole (7), and a second injector cooling channel (14) for discharging cooling oil from the fuel injector hole (7) and having an inlet end (15A) opening into the fuel injector hole (7) and an outlet end (16B) opening onto the top surface (1B) of the cylinder head (1), the outlet ends (11B, 16B) of the oil supply channel (11) and the second injector cooling channel (14) being located in an area that is configured to be covered by the cylinder head cover (4).
Owner:WARTSILA FINLAND OY
Thermostat compactly arranged
The utility model discloses a compactly-arranged thermostat which comprises a crankcase, the crankcase is connected with a water pump body, the crankcase comprises a part close to the water pump, a thermostat installation cavity is formed in the part close to the water pump, a thermostat body is arranged in the thermostat installation cavity, the thermostat installation cavity is communicated with a water outlet pipe, and the water outlet pipe is communicated with a water inlet pipe. The water outlet pipe is communicated with the water pump body. The utility model provides the compactly-arranged thermostat, a water outlet hose / pipeline which is independently arranged and connected to the thermostat mounting cavity is reduced, mounting parts are reduced, and the water outlet pipe is formed by connecting the structures of the crankcase and the water pump body, so that the structure can be compactly arranged, and the occupied volume of the whole device is reduced.
Owner:ZHEJIANG MEIKEA MOTORCYCLE CO LTD
Off-road vehicle
A vehicle shown herein is a side by side utility vehicle having a powertrain an engine with at least three cylinders, an intake and an exhaust, where the intake is forward of the engine and the exhaust is rearward of the engine. The vehicle may further or alternatively include an engine block configured to couple with various transmissions without alteration of the engine block itself.
Owner:POLARIS IND INC
Engine for vehicle, hybrid power assembly and vehicle
The utility model provides an engine for a vehicle, a hybrid power assembly and the vehicle, the engine comprises a timing cover and an engine body, the timing cover is connected to one side of the engine body, and the timing cover is provided with a first mounting position; the oil can is arranged on the side, away from the machine body, of the timing cover, and a first connecting structure is arranged on the oil can; and the first locking piece is locked and matched to the first connecting structure and the first mounting position and is connected to the machine body, so that the oil can is supported through the machine body, and stable mounting of the oil can is guaranteed.
Owner:BYD CO LTD
Valve cover assembly for internal combustion engine
The present application includes apparatuses and service methods including a valve cover assembly for an internal combustion engine. The valve cover assembly optionally including: a valve cover; a base extension coupled to the valve cover and having a recess that receives at least a portion of a rocker arm therein; and a grommet coupled to at least the base extension, the grommet having one or more openings for passage of one or more fuel tubes into the recess to deliver one or more fuels to a fuel injector. The at least one of the valve cover and the base extension is removable from the internal combustion engine without disturbing the one or more fuel tubes to provide access to the rocker arm for performing a valve lash adjustment thereon.
Owner:CATERPILLAR INC
Burr-shaped cast-in type cylinder sleeve and detection method thereof
PendingCN119435227AImprove cooling effectIncrease binding rateEdge grinding machinesCasingsCylinder blockMechanical engineering
The invention relates to the technical field of cylinder sleeves and detection thereof, in particular to a burr-shaped cast-in type cylinder sleeve and a detection method thereof. The cylinder sleeve is made of cast iron and is cast into the cylinder body through a die-casting or gravity casting process, and a plurality of burrs are formed on the peripheral face of the cylinder sleeve. At least one burr meets the following conditions: in the burr-shaped cast-in cylinder sleeve, the diameter of the burr at the position 0.25 mm away from the top end is L1, and the diameter of the burr at the position 0.4 mm away from the top end is L2; and the ratio of the diameter L1 to the diameter L2 is more than or equal to 0.65 and less than or equal to 1.15. The specific shapes of the burrs are limited by limiting the diameter sizes of the two special positions, away from the top end, of the burrs, so that the binding rate between the single burrs and the cylinder body and the binding rate between the cylinder sleeve and the cylinder body are guaranteed, good heat dissipation performance between the cylinder sleeve and the cylinder body is guaranteed, and it is guaranteed that the cylinder sleeve does not deform in the working process.
Owner:ZYNP CORPORATION
Engine shell composite skirt and manufacturing method and manufacturing device thereof
PendingCN119435232AImprove grinding precisionavoid human errorCasingsRevolution surface grinding machinesElectric machineStructural engineering
The invention discloses an engine shell composite skirt and a manufacturing method and device thereof, and belongs to the technical field of engine shells, the engine shell composite skirt comprises a skirt body, the skirt body is formed by splicing thirty-six skirt sections into a circular ring shape, skirt teeth are arranged at one end of the skirt body, a folded edge is arranged at the other end of the skirt body, corner box positioning holes are formed in the skirt body, and the corner box positioning holes are formed in the skirt body. A fillet is arranged on the inner side of the joint of the skirt body and the folded edge. By arranging the driving motor, the millstone, the driving assembly and the telescopic assembly, during use, a worker places the skirt body on the table, during grinding, the worker enables the frame to drive the driving motor and the millstone to move to the position, needing to be ground, of the outer circle face of the skirt body through the driving assembly, and then the driving motor is started to enable the millstone to rotate; and finally, the driving motor and the grinding disc can move close to the skirt body through the telescopic assembly to grind the outer circle face of the skirt body, personal errors are avoided, and therefore the grinding precision of the skirt body is improved.
Owner:JIANGSU XINYANG NEW MATERIALS CO LTD
Engine, hybrid assembly and vehicle
The invention discloses an engine, a hybrid power assembly and a vehicle, the engine comprises a component to be subjected to oil return and an oil return pump assembly, the component to be subjected to oil return is provided with a plurality of oil return areas, and at least part of the oil return areas are located at the two opposite ends of the component to be subjected to oil return; the oil return pump assembly is provided with an oil return opening, and the oil return opening is connected with the oil return areas at the two opposite ends. Therefore, at least part of the oil return areas are arranged at the two opposite ends of the component to be subjected to oil return respectively, so that the oil return pump assembly can return oil to the component to be subjected to oil return from different positions, the oil return efficiency can be improved, oil return dead angles are eliminated, the oil return pump assembly is not prone to air suction, and then the operation stability of an engine is guaranteed.
Owner:BYD CO LTD
Motorcycle engine shell structure
Owner:GUANGDONG RUIZHEN TECH CO LTD
Crankcase of motorcycle engine
The invention relates to a motorcycle engine crankcase which comprises a crankcase body, a front air cylinder, a rear air cylinder, a liquid inlet cavity, a liquid outlet cavity, an air cylinder water path, a first labyrinth, a second labyrinth and the like. The liquid inlet cavity and the liquid outlet cavity are integrally formed with the crankcase and integrated in the crankcase, so that the whole structure is compact, related pipeline installation is omitted, and the production cost is reduced. The front air cylinder and the rear air cylinder are arranged in a V shape to form an upward V-shaped opening, and the first labyrinth is arranged in the V-shaped opening to fill space, reduce rainwater accumulation and reduce corrosion to a crankcase. The thermostat cavity is arranged between the front cylinder and the rear cylinder, and a water outlet pipe is arranged at the top and communicated with the water tank to participate in engine major cycle. By arranging the first labyrinth and the second labyrinth, oil and gas are separated for the first time and the second time respectively, the oil-gas separation efficiency is improved, and the problems of insufficient mechanical lubrication and faults caused by reduction of engine oil are solved. The engine is compact in structure and reasonable in design, and the performance and reliability of the engine are effectively improved.
Owner:ZHEJIANG QIANJIANG MOTORCYCLE
Oil pan, engine, hybrid assembly and vehicle
The invention discloses an oil pan, an engine, a hybrid assembly and a vehicle, relates to the technical field of engines, and is used for solving the problem that in the prior art, a communication mode of a multi-cylinder engine and a cooling liquid pipeline is not beneficial to compactness and miniaturization of the engine. The oil pan is provided with a cooling liquid channel, a liquid outlet communicated with the cooling liquid channel is formed in the oil pan, and the liquid outlet is used for being communicated with a machine body.
Owner:BYD CO LTD
Engine, hybrid power assembly and vehicle
The invention discloses an engine, a hybrid power assembly and a vehicle, relates to the technical field of vehicles, and aims to solve the problem of non-uniform cooling of the engine. The engine comprises a first cylinder body, a second cylinder body, a first cylinder cover and a second cylinder cover. The first cylinder body and the second cylinder body are connected with each other and define a crankshaft cavity. The first cylinder cover is arranged on the side, away from the second cylinder body, of the first cylinder body, and the second cylinder body is arranged on the side, away from the first cylinder body, of the second cylinder body. The first cylinder body is provided with a first cylinder body cooling flow path, the first cylinder cover is provided with a first cylinder cover cooling flow path, the first cylinder body is provided with a first liquid inlet, the first cylinder body flow path comprises a first transition cavity and a first flow channel arranged in a cylinder hole of the first cylinder body, the first liquid inlet is communicated with the first transition cavity, and the first transition cavity is communicated with the first flow channel. The first cylinder cover is provided with a first cylinder cover cooling flow path, the first cylinder cover flow path is provided with a first liquid inlet, and the first liquid inlet communicates with the first transition cavity.
Owner:BYD CO LTD
Camshaft bearing cap, engine, vehicle and manufacturing method of camshaft bearing cap
The invention relates to a camshaft bearing cover, an engine, a vehicle and a manufacturing method of the camshaft bearing cover, and belongs to the technical field of automobiles. The cam shaft bearing cover comprises a cam shaft bearing lower cover and a cam shaft bearing upper cover, the cam shaft bearing lower cover is installed on a cylinder cover of an engine cylinder, the cam shaft bearing upper cover is installed on the cam shaft bearing lower cover, and two lower installation half grooves are formed in the first surface of the cam shaft bearing lower cover. The second surface of the camshaft bearing upper cover is provided with two upper mounting half grooves, the two lower mounting half grooves are respectively matched with one upper mounting half groove to form two bearing mounting holes, a bearing cover main oil passage is arranged between the first surface and the second surface, the bearing cover main oil passage is communicated with the bearing mounting holes, and the camshaft bearing lower cover is provided with a bearing cover oil inlet passage. And the bearing cover oil inlet channel is communicated with the bearing cover main oil channel and an oil outlet of the cylinder cover main oil channel of the cylinder cover. The manufacturing process of the camshaft bearing cover can be simplified.
Owner:CHERY AUTOMOBILE CO LTD
Volume-variable crankcase
The invention belongs to the technical field of piston engines, and particularly relates to a variable-volume crankcase which is integrated with a deformable and automatically-recoverable device, a variable-volume cavity is formed in the crankcase through a deformable or slidable diaphragm, and particularly, an elastic reset element is arranged in the upper surface of the device, so that the variable-volume cavity is formed in the crankcase. It is ensured that the diaphragm can stably and regularly move and reset after deforming or sliding; power for deformation or sliding of the diaphragm comes from periodical extrusion of an engine crank to the diaphragm, by correctly matching a volume change curve of the crankcase with an air distribution phase, the volume of the crankcase is enlarged during air inlet, so that negative pressure in the crankcase is increased, the volume of the crankcase is reduced during scavenging, pressure in the crankcase is increased, and the service life of the crankcase is prolonged. The technical problems of insufficient air intake, low scavenging efficiency, power attenuation and the like of a two-stroke piston engine under the low air pressure condition are solved, and a feasible solution is provided for power improvement of a small aero-engine and power recovery in a high-altitude environment.
Owner:CHANGZHOU INST OF TECH +1
Cylinder head cover
A cylinder head cover for a hydrogen-fueled internal combustion engine includes a head cover body and an outlet passage. The head cover body defines a main passage for blow-by gas that has leaked from a combustion chamber to a crankcase. The outlet passage is connected to a downstream end of the main passage and conducts the blow-by gas to an intake passage. The main passage includes a restriction in a middle of the main passage. The cylinder head cover further includes an auxiliary passage. The auxiliary passage is connected to a section of the main passage that is on the upstream side of the restriction. The auxiliary passage conducts the blow-by gas to the outlet passage or the intake passage.
Owner:TOYOTA JIDOSHA KK
Two-stroke heavy oil aviation piston engine
The invention discloses a two-stroke heavy oil aviation piston engine, and belongs to the technical field of unmanned aerial vehicle engines, the two-stroke heavy oil aviation piston engine comprises an engine body, a spark plug, an exhaust pipe, a fuel oil supply system, a crank connecting rod mechanism, two pistons and an auxiliary heating system, the engine body is composed of a crankcase and two piston cylinders, and the two piston cylinders are horizontally and oppositely distributed on the two sides of the crankcase; the two sides of the crankcase are connected with the short output shaft and the long output shaft in a penetrating and coupling mode, and a rotating cavity opposite to the crankshaft connecting disc is formed in the crankcase. The opposed crankshaft connecting disc is provided with two crank throws in an opposed 180-degree working phase, and the structure of the opposed crankshaft connecting disc without a central shaft neck can reduce the centrifugal force of rotation and improve the operation stability; the crank throw is connected with the piston through a connecting rod, and the joint can rotate; the two pistons are respectively positioned in the two piston cylinders; and the auxiliary heating system is dispersedly arranged on the engine body, consists of a temperature switch and a heating rod, and is used for heating the purified oil-gas mixture provided by the fuel oil supply system.
Owner:JILIN UNIVERSITY
Engine cover convenient to pre-fix
The utility model discloses an engine cover convenient to pre-fix, which comprises a cover plate, a stabilizing assembly is arranged on the cover plate, the stabilizing assembly comprises a reinforcing plate, a connecting block, a fixing bolt, a filling hole, a circulating hole and a stabilizing hole, the reinforcing plate is detachably arranged on the inner side of the cover plate, the connecting block is arranged on the reinforcing plate, and the fixing bolt is arranged on the connecting block. The fixing bolt is detachably installed between the connecting block and the cover plate, the filling hole is formed in the top of the cover plate, the circulating holes are evenly formed in the middle of the top of the cover plate, the stabilizing hole is formed in the side end of the cover plate, a disassembling assembly is arranged on the cover plate, and the disassembling assembly comprises an installing rod, an installing sleeve and a rotating sleeve. The mounting rod penetrates through the cover plate, the mounting sleeve is connected to the mounting rod in a sliding mode, and the bottom of the mounting sleeve is tightly attached to the top of the cover plate, so that the technical problem that in the background technology, an existing engine cover is obviously unstable in the fixing process is solved.
Owner:RUIAN MUSEN AUTO PARTS CO LTD
Engine
The engine comprises an outer shell, the outer shell comprises a crankcase, a speed change mechanism is installed in the crankcase, the speed change mechanism comprises a power input shaft and a power output shaft, and the power input shaft and the power output shaft are installed in the crankcase and can rotate relative to the crankcase in the circumferential direction of the power input shaft and the power output shaft; the crankcase comprises an upper crankcase body and a lower crankcase body, the power input shaft and the power output shaft are located between the upper crankcase body and the lower crankcase body, the upper crankcase body is connected with the lower crankcase body through a crankcase closing bolt, and the upper crankcase body comprises a bolt mounting hole allowing the crankcase closing bolt to penetrate through, a first shaft seat used for mounting the power input shaft and a second shaft seat used for mounting the power output shaft. At least part of the bolt mounting hole is located between the first shaft seat and the second shaft seat, the upper box body is provided with an oil channel extending from the first shaft seat to the second shaft seat, and the oil channel does not coincide with the bolt mounting hole. Through the arrangement, the sealing performance in the crankcase is improved, and lubricating oil is prevented from leaking from the crankcase.
Owner:ZHEJIANG CFMOTO POWER CO LTD