2531 results about "Cylinder head" patented technology

The present invention discloses an anti-corrosion and anti-seepage anchor structure for new buildings, which includes multiple steel strands arranged in an anchor hole. The top of the anchor hole includes a cushion layer, a bottom plate and a surface layer from bottom to top; a tension end anchor assembly is arranged at the top ends of the multiple steel strands and is located in the bottom plate below the surface layer. The tension end anchor assembly includes a settlement type winged anchor backing plate, which is arranged at the top of the multiple steel strands and is located at the top surface of the bottom plate. The settlement type winged anchor backing plate has a cylindrical structure, and the cylindrical structure includes a cylinder head part, a cylinder body part and a cylinder tail part from top to bottom. Among them, the tension anchor of the tension end anchor assembly is arranged at the cylinder head part; a connecting pipe is sleeved outside the multiple steel strands, and the upper end of the connecting pipe is hermetically connected to the lower end of the cylinder tail part; a water-stop steel ring assembly is embedded in the bottom plate and the cushion layer at the same time, and the lower end of the connecting pipe extends into the water-stop steel ring assembly; a front anchor carrier assembly is arranged at the other ends of the multiple steel strands. It can solve the problem of upward seepage of underground foundation water.

The present invention discloses a sunken winged anchor backing plate for construction, which is applied to an anti-corrosion and anti-seepage anchor rod structure for construction. The body of the sunken winged anchor backing plate is in a cylindrical structure, and the body includes a cylinder head part, a cylinder body part, a cylinder tail part, an inner hole part and a plurality of reinforcing wing plates; the cylinder head part is arranged at the uppermost part of the body; the cylinder body part is coaxially connected to the lower part of the cylinder head part; the cylinder tail part is coaxially connected to the lower part of the cylinder body part; wherein the outer dimensions of the cylinder head part, the cylinder body part and the cylinder tail part gradually decrease; the inner hole part is coaxially arranged on the body with the cylinder head part, the cylinder body part and the cylinder tail part; and the plurality of reinforcing wing plates are evenly spaced along the axial direction and are arranged around the outer wall of the cylinder tail part. It can solve the problem of upward seepage of underground foundation water.

The utility model relates to the technical field of brake air chambers, and provides a double-piston brake air chamber and a brake air chamber suite. The first side of the flange plate and the front cylinder cover define a traveling cavity, the second side of the flange plate and the rear cylinder cover define a parking cavity, a first air inlet and a second air inlet are formed in the periphery of the flange plate, and the first air inlet is connected with a first air inlet inclined pipe to form a first air channel communicating the outside of the brake air chamber with an inner cavity of the traveling cavity. The second air inlet is connected with a second air inlet inclined pipe to form a second air channel communicating the outer portion of the braking air chamber and the inner cavity of the parking cavity. According to the double-piston brake chamber, the overall structure of the double-piston brake chamber can be simplified, miniaturization of products is facilitated, completely symmetrical arrangement can be achieved, the universality of the flange plate is enhanced, and the overall use cost is reduced.

The invention relates to the technical field of cylinder barrel welding, and particularly discloses a welding device for cylinder barrel machining, which comprises a machine base and a three-jaw chuck rotating on the machine base, a bearing plate is arranged on the machine base, and a plurality of roller groups are arranged on the bearing plate along the left-right direction; a clamping module is arranged on the bearing plate and comprises a clamping unit and a pulling unit; the clamping unit comprises a sliding seat elastically and slidably connected to the bearing plate in the left-right direction, two supporting frames are symmetrically arranged on the sliding seat in the front-back direction, and the supporting frames are elastically and slidably connected to the sliding seat in the front-back direction. The welding device has the beneficial effects that the two clamping rods can be rapidly made to avoid towards the right side only by pulling the pull rod, meanwhile, the distance between the two clamping rods can be increased, space is reserved for placement of the cylinder cover, after the pull rod is loosened, the clamping rods are rapidly reset to clamp and fix the cylinder cover, manual intervention is not needed for auxiliary positioning during welding, and the welding efficiency is improved. And manpower is effectively saved.

The utility model discloses an automatic product screw and nut assembling device which comprises a working table, a vibration feeding disc, a feeding track, a feeding positioning assembly, a nut assembling assembly and an assembling positioning assembly, the vibration feeding disc is fixedly installed on the working table, a discharging port of the vibration feeding disc is connected with the feeding track, a discharging port of the feeding track is connected with the feeding positioning assembly, and a discharging port of the nut assembling assembly is connected with the assembling positioning assembly. A nut assembling assembly is erected above the feeding positioning assembly, an assembling positioning assembly is arranged in the moving stroke coverage range of the nut assembling assembly, the assembling positioning assembly comprises a rotating power device, a rotating table, a clamping air cylinder and an assembling jig, and the rotating output end of the rotating power device is fixedly connected with the rotating table; two opposite clamping air cylinders are fixedly installed at the center of the upper end face of the rotating table, cylinder heads of the clamping air cylinders are connected with an assembling jig, the assembling jig is fixedly installed on the rotating table, the nut and screw assembling machine is simple in structure, two nuts and two screws can be assembled at the same time, and working efficiency is improved.

The invention relates to an external cylinder cover air inlet channel methanol injection switching system, and relates to the field of ship engineering and power systems. The methanol spraying device comprises a cylinder cover, a front-end switching block arranged at one end of the top of the cylinder cover, a methanol spraying device penetrating through the front-end switching block, a middle-end switching block arranged at the top of the methanol spraying device and connected with the front-end switching block, a rear-end switching block arranged on the middle-end switching block, a methanol distribution block arranged on the rear-end switching block and a methanol double-wall pipe arranged on the methanol distribution block. The alcohol spraying device is obliquely arranged above the air inlet channel and follows the air inlet direction, so that the spraying resistance is reduced; the methanol double-wall pipe is connected to the two transverse sides of the methanol distribution block, and methanol is supplied to the methanol sprayer through the middle-end adapter block and the rear-end adapter block. The external connection type design is adopted, large-scale transformation of an existing engine structure is not needed, the transformation cost and the implementation difficulty are reduced, and the method is suitable for various types of ship engines.

The invention provides an automatic feeding press-fitting device which is used for mounting a seat ring on a mounting position of a cylinder cover and comprises a base and an assembling table arranged at the top of the base, a feeding part and a mounting frame are arranged on one side of the base, the top of the mounting frame extends towards the assembling table and is provided with a stamping driving part, and the stamping driving part is arranged on the assembling table. The output end of the stamping driving part extends downwards and is connected with a stamping head, a clamping mechanism is arranged on one side of the mounting frame, a screening mechanism is arranged between the clamping mechanism and the feeding part, the clamping mechanism comprises a first sliding plate, a first sliding piece and a rotary driving part, a butt joint position is arranged on one side of the first sliding plate, a press fitting hole is formed in the other side of the first sliding plate, and the butt joint position is in butt joint with the screening mechanism. An elastic gate is arranged at the bottom of the press-fitting hole, a material receiving hole is formed in one end of the first sliding sheet, a rotating center is arranged at the other end of the first sliding sheet, the rotating center and the first sliding plate are located at the butt joint position, the middle of the press-fitting hole is rotationally connected, an output shaft of the rotating driving part is connected with the rotating center, automatic seat ring screening and mounting are achieved, and the production efficiency is high.

The invention relates to a piston-cylinder unit. The piston-cylinder unit has a piston motion sensor which is arranged in a transverse hole of a cylinder head having a longitudinal axis. According to the invention, the piston motion sensor is detachably connected to a housing plug through a sensor cable. The housing plug is L-shaped. One leg of the housing plug extends in the transverse hole of the cylinder head, while another leg extends lying externally from the cylinder head. The invention enables the operation of the piston-cylinder unit with housing plugs of different types.The piston-cylinder unit according to the invention finds, for example, use for a work machine, construction machine, agricultural machine, maritime machine, wheel loader, excavator, dumper, crane, forklift or lifting platform.

The invention provides a marine underwater oil cylinder, and belongs to the technical field of marine engineering underwater key parts. The oil cylinder comprises a cylinder bottom, a cylinder body and a cylinder cover which are sequentially arranged, and the cylinder cover is connected with the cylinder body in a sealed mode through a first sealing assembly. A piston and a piston rod connected to the piston are slidably arranged in the cylinder body, the piston rod is in sealing fit with the cylinder cover through a second sealing assembly, and the piston is in sealing fit with the inner wall of the cylinder body through a third sealing assembly. According to the oil cylinder used under the sea, the sealing performance and the anti-corrosion performance of the oil cylinder are improved, the pressure-resistant grade and the radial bearing capacity of the oil cylinder are improved, the low-speed stable motion characteristic of the oil cylinder is improved, and the service life of the oil cylinder is prolonged.

The invention discloses a liquid viscosity detection device, and particularly relates to the field of viscosity detection.The liquid viscosity detection device comprises a base, a control box and a bathtub are arranged on the base, the bathtub is used for containing constant-temperature bath liquid, a cylinder cover covers the bathtub, an opening is formed in the cylinder cover, and a capillary tube clamp is arranged at the opening; the capillary tube clamp is used for clamping the capillary tube viscometer, the capillary tube viscometer extends into the bathtub, a heating assembly and a stirrer are mounted on the cylinder cover, the heating assembly is used for heating constant-temperature bath liquid, and the stirrer is used for stirring the constant-temperature bath liquid. The capillary viscometer extends into the bathtub, the constant-temperature bath liquid is heated by the heating assembly, and the stirrer is used for stirring to uniformly distribute heat, so that the temperature of the to-be-detected liquid in the capillary viscometer can be kept constant, and the viscosity of the to-be-detected liquid under a certain temperature condition can be detected; and the influence of environment temperature change is avoided.

A system for detecting a source of a misfire for a turbulent jet ignition (TJI) engine having a first ignition device disposed in a pre-chamber of a cylinder head and a second ignition device disposed for communication with a main combustion chamber is presented. The system includes a controller that determines engine operating conditions; generates a first spark from the first ignition device at a first time; generates a second spark from the second ignition device at a second time; activates a skipfire mode based on a determination that the engine operating conditions are satisfactory, wherein in the skipfire mode, the controller generates a modified second spark at a modified second time, the modified second time being later than the second time; and determines a misfire event based on sensing ionization of gasses at the main combustion chamber subsequent to firing the first and second ignition devices.

The invention provides a liquid ammonia in-cylinder direct injection engine combustion system and method with an active pre-combustion chamber, and relates to the technical field of internal combustion engines, the liquid ammonia in-cylinder direct injection engine combustion system comprises a cylinder cover and a cylinder sleeve arranged below the cylinder cover, the pre-combustion chamber is vertically arranged in the center of the cylinder cover, a liquid ammonia injector is arranged on one side of the pre-combustion chamber, and the active pre-combustion chamber is arranged in the cylinder sleeve. A hydrogen ejector and a spark plug are arranged on the pre-combustion chamber; and spraying holes are formed in the pre-combustion chamber and located in the bottom of the pre-combustion chamber, and the spraying holes of the pre-combustion chamber face one side of the liquid ammonia ejector. According to the liquid ammonia in-cylinder direct injection engine combustion system and method with the active pre-combustion chamber, the effect that diffusion combustion is promoted through premixed combustion of ammonia fuel is achieved, accurate control over the combustion initial point and the heat release rate is achieved, and the requirements for the low hydrogen energy ratio, high ignition efficiency and high heat efficiency of an ammonia fuel engine in the full working condition range are met.

The invention relates to the technical field of compressor cylinder covers, in particular to a compressor partition plate hole machining clamp which comprises a support, four sets of positioning mechanisms, a fixing mechanism and a power mechanism, the four sets of positioning mechanisms are evenly distributed on the support, each set of positioning mechanism comprises a mandrel and an elastic clamp arranged on the mandrel in a sleeving mode, and workpieces are arranged on the elastic clamps in a sleeving mode; the fixing mechanism and the positioning mechanism are correspondingly arranged, and the fixing mechanism comprises a mounting plate arranged on the outer side of the mandrel, a plurality of sets of supporting assemblies arranged on the mounting plate in a circumferential array mode and pressing assemblies arranged corresponding to the supporting assemblies; the power mechanism is installed on the support and drives the supporting assembly, the positioning mechanism and the pressing assembly to act in sequence to clamp a workpiece. The workpiece is placed on the multiple sets of supporting units, the supporting faces of the two sets of turning plates in each set of supporting units can be rotated from opposite arrangement to upward arrangement to support the workpiece, after the workpiece is supported, the positioning mechanism and the pressing assembly fix the workpiece, and the problem that in the prior art, the workpiece positioning precision is poor is solved.

The invention discloses a fixing device for steel Yankee dryer processing, and relates to the technical field of Yankee dryer processing. Comprising a fixing seat, a fixing rod is slidably mounted in a middle inner wall cavity of the fixing seat in a limiting manner, and a first gear is mounted at the top edge of the left end of the fixing seat through a motor; the device further comprises a first gear ring, the first gear ring is concentrically and rotationally installed on the left end face of the fixing base through a bearing, the first gear ring is meshed with the first gear, a movable groove is formed in the left side wall of the first gear ring, an installation rod is connected into the movable groove through a first elastic telescopic rod, and an installation column is fixed into a cavity in the bottom of the installation base. The mounting column is sleeved with a positioning roller, and a positioning baffle is fixed to the bottom of the left end of the mounting base. The fixing device for machining the steel Yankee drying cylinder can connect and fix the cylinder body and the cylinder cover, clears are cleaned during circumferential welding, and meanwhile the fixing device is suitable for cylinder bodies of different specifications.

The utility model discloses an engine cylinder cover valve collet assembling auxiliary device which comprises a roller way, a cylinder cover positioning device installed on the roller way and a power mechanism driving a press-fitting plate to move up and down. The power mechanism comprises an oil cylinder and is characterized by further comprising an oil cylinder rod mounting plate, the oil cylinder rod mounting plate is mounted below the roller way, the middle of the oil cylinder rod mounting plate is connected with the end of an oil cylinder rod of the oil cylinder, and guide rods are fixedly mounted at the two ends of the oil cylinder rod mounting plate respectively; longitudinal frames are fixedly mounted at the upper ends of the guide rods; the press-fitting plate is located above the roller way, and the two ends of the press-fitting plate are connected to the longitudinal frame. The press-fitting plate is further provided with a transverse middle long groove extending in the length direction of the press-fitting plate, a plurality of longitudinal grooves which are longitudinally arranged and intersect with the middle long groove, and a plurality of transverse grooves which are transversely arranged. The press-fitting device has the advantages of being compact in structure, high in working efficiency, capable of adapting to installation of various valve lock clamps without replacing the press-fitting plate and the like.

Invention relates to a fuel ignitor (10) for gaseous fuel comprising a body assembly (12) having a longitudinal axis (A), and a first axial end and a second axial end. The ignitor body assembly (12) comprises a. a prechamber (20) arranged at the first axial end and having a tip, and more than two jet openings (22) arranged to the tip of prechamber (20) at the first axial end, b. a fuel inlet (26) arranged to open into the prechamber (20), c. first cavity (28) arranged to extend from the second axial end of the body assembly (12) to proximity to the prechamber (20), wherein a solenoid actuated gas admission valve unit (29) is arranged in the first cavity (28), d. second cavity arranged to extend from the second axial end of the body assembly (12) to the prechamber (20), wherein an ignition device (31) is arranged in the second cavity in cooperation with the prechamber (20) so as to initiate combustion of fuel in the prechamber (20), when in use, e. cooling channels (32) arranged at the first axial end of the ignitor body assembly (12) arranged in heat transfer connection with the prechamber (20). Invention relates also to a cylinder head - fuel ignitor combination, a gas operated internal combustion engine and method of converting an existing internal combustion piston engine.

The present invention proposes an all-aluminum energy-saving air compressor, which specifically relates to the technical field of air compressors and includes a cylinder head, a valve plate assembly fixedly provided at the bottom end of the cylinder head, a cylinder body fixedly provided at the bottom end of the valve plate assembly, a lubrication system provided inside the cylinder body, an oil pump portion fixedly provided at the end thereof, the lubrication system connected to the oil pump portion, the lubrication system connected to the crank-connecting rod structure, the crank-connecting rod structure slidably provided in the cylinder body; the cylinder head, valve plate assembly, cylinder body, lubrication system, oil pump portion, crank-connecting rod structure are all made of aluminum alloy material, and the inner cavity of the cylinder body is coated with a ceramic film. The all-aluminum energy-saving air compressor provided by the present invention can make the air compressor lightweight while also making the deformation consistency of the cylinder body of the air compressor. It adopts an all-aluminum cylinder body with a built-in oil pump function, has a simple structure and process, reduces fuel consumption, and achieves low pollution, energy saving and environmental protection requirements.

The air cylinder cover comprises a body, a plurality of cylinder openings are formed in the body, the cylinder openings and a cylinder body are used for forming a combustion chamber in a surrounding mode, and the multiple cylinder openings are sequentially arranged in the first direction at intervals; a first connecting hole is formed in the body, and a fixing piece for connecting the body and the cylinder body passes through the first connecting hole; a second connecting hole is formed in the body, and a connecting piece for connecting the body and the cam bearing seat passes through the second connecting hole; the first connecting holes and the second connecting holes are arranged at intervals in the second direction perpendicular to the first direction. By means of the arrangement, the torque of the cylinder cover in the front-back direction (namely the extending direction of the cam shaft) can be balanced, deformation or displacement possibly caused by staggered arrangement of the cam bearing seat and the cylinder cover bolt on the cylinder cover in the front-back direction is avoided, and therefore it is guaranteed that stress on the cylinder cover in the up-down direction and the front-back direction is relatively uniform; and the structural strength and the bearing capacity of the cylinder cover are improved.

The present invention discloses a cylinder structure and a working method for preventing liquid hammer in a reciprocating piston compressor. The cylinder structure mainly includes a piston, a cylinder body, a fixed stopper, and a partition. A partition that can slide along the cylinder body is provided in the cavity between the fixed stopper and the cylinder head. The partition is sealed from the inner wall of the cylinder body. An elastic structure is provided in the cavity surrounded by the partition, the cylinder body, and the cylinder head. The elastic structure applies a thrust toward the piston to the partition, causing the partition to cling to the fixed stopper. The force applied by the elastic structure to the partition is greater than the force acting on the partition in the normal exhaust state of the cylinder structure. When the pressure in the cylinder rises sharply at the end of exhaust due to liquid accumulation, the high pressure in the cylinder will push the partition to overcome the spring force and move toward the cylinder head, forming a buffer space, thereby reducing the pressure in the cylinder and preventing the sudden increase in high pressure from damaging valuable components such as the intake and exhaust valves, piston, and connecting rod. Therefore, the present invention can solve the problem of liquid hammer in the cylinder from the root.

A V-type engine, an outboard motor, and a ship capable of restricting exposure of a catalyst to water. Cylinders where pistons operate are arranged in a V-shape, a crankshaft driven by driving of the pistons is disposed vertically, and exhaust pipes communicating with exhaust openings in the respective banks of a cylinder head and a catalyst holder that holds a catalyst in a merge portion where the exhaust pipes are merged in a site located on an upper side of the banks are included.

The invention provides a diesel engine cylinder fault diagnosis method and system based on MMFE-PSO-KELM, and the method comprises the steps: S1, collecting a vibration signal of the surface of a cylinder cover of a diesel engine cylinder and a rotating speed signal of a crankshaft, and carrying out the preprocessing of the vibration signal; s2, an MMFE algorithm is adopted to analyze and process the preprocessed vibration signals, and MMFE feature vectors rich in high-frequency and low-frequency fault mode information are constructed; s3, optimizing a regularization parameter C and a kernel function parameter sigma of the KELM model by using a PSO (Particle Swarm Optimization) algorithm, and searching an optimal parameter combination which maximizes the classification accuracy by taking the classification accuracy as a fitness function; and S4, constructing a KELM diagnosis model based on the optimal parameter combination, and performing fault diagnosis on the diesel engine cylinder by taking the high-frequency and low-frequency fault mode information extracted by the MMFE algorithm as input. According to the method, strong noise interference can be effectively inhibited, fault feature information can be comprehensively reserved, KELM key parameters can be optimized, and the accuracy and reliability of fault diagnosis of the diesel engine cylinder are improved.

An engine to be mounted on a straddle-type vehicle. The engine includes a cylinder and a cylinder head stacked on an upper portion of a crank case, an exhaust pipe extending from the cylinder head and passing through a lateral side of the cylinder, an exhaust gas sensor attached to the exhaust pipe, on the lateral side of the cylinder, and a radiator positioned in front of the cylinder head. The exhaust gas sensor is covered by the radiator from a front side.

The invention discloses a dual-fuel diesel engine cylinder cover disassembling and assembling platform in the technical field of diesel engine cylinder cover assembling, which is used for disassembling and assembling an air valve guide pipe on a cylinder cover main body and comprises a working table, a clamping mechanism arranged on the working table and used for clamping the cylinder cover main body, and a bearing frame arranged on the working table, the disassembly and assembly driving mechanism and the disassembly and assembly auxiliary mechanism are arranged on the bearing frame. The dismounting and mounting driving mechanism is arranged to dismount the air valve guide pipe on the air cylinder cover, and when the dismounting and mounting driving mechanism cannot drive the air valve guide pipe to move upwards to be separated from the mounting hole in the air cylinder cover body, the heating ring makes contact with the mounting hole area in the air cylinder cover body to heat the mounting hole area; the mounting hole area is uniformly heated and expanded through heat conduction, friction force is reduced through heat expansion difference, the stuck old air valve guide pipe is assisted to be smoothly disassembled, the damage risk of the air valve guide pipe and the mounting hole is greatly reduced, and meanwhile the assembling precision and the sealing performance of the new air valve guide pipe are guaranteed.

The invention discloses an automatic assembling device and method for an O-shaped ring in an oil injector hole of an engine cylinder cover, and relates to the technical field of engine cylinder covers. The feeding mechanism comprises a feeding base, and a vibrating screen mechanism, a stop block mechanism and a jacking mechanism which are connected to the feeding base; the vibrating screen mechanism is used for sequentially conveying a plurality of O-shaped rings into the mounting positions of the stop block mechanism; a supporting claw connected with an O-shaped ring is arranged in an installation position of the check block mechanism, and an opening and closing baffle assembly is arranged at the top of the installation position. The jacking mechanism is provided with a jacking plate and a jacking device, and the jacking device can jack the jacking plate to enable the O-shaped ring on the supporting claw to be ejected out. The assembling mechanism comprises a conveying mechanism, an assembling base, a driving device and a grabbing and clamping mechanism; the assembling base is movably connected to the conveying mechanism; the driving device is connected to the assembling base; the driving device drives the grabbing and clamping mechanism to move so as to grab the O-shaped ring on the supporting claw, and the O-shaped ring is pressed into an oil spraying hole of the cylinder cover.

The invention relates to the field of power and energy engineering, in particular to a methanol-diesel dual-fuel internal mixing type fuel injector capable of being independently controlled. In order to overcome the defects that in the prior art, a dual-fuel injection system is complex in structure, the size of an oil injector is large, a cylinder cover is difficult to install, the fuel premixing capacity is poor, and injection control is not flexible, the technical scheme is that the methanol-diesel oil dual-fuel internal mixing type oil injector capable of being independently controlled comprises an oil injector shell; the fuel injector shell is provided with a methanol fuel inlet, a diesel fuel inlet, a fuel injection hole as well as a methanol oil way and a diesel oil way which are respectively connected with the methanol fuel inlet and the diesel fuel inlet; a methanol control assembly, a diesel oil control assembly, a pressure control chamber, a ball valve, a needle valve and a premixing pressure cavity are arranged in the oil injector, injection of methanol and injection of diesel oil can be controlled respectively, and mixed injection of two kinds of fuel can be achieved in the premixing pressure cavity. The methanol-diesel oil dual-fuel efficient mixed injection system is suitable for modification work of an engine oil injection system needing to achieve methanol-diesel oil dual-fuel efficient mixed injection and precise control in the fields of ship power, heavy vehicles, engineering machinery and the like.

The invention relates to the technical field of engine cylinder body and cylinder cover surface defect detection, and discloses a visual detection method for engine cylinder body and cylinder cover surface defects, which comprises the following steps of: acquiring engine cylinder body and cylinder cover surface images under various different imaging conditions, preprocessing, extracting a feature vector of each pixel block, distributing weights by using a weight function, and calculating the surface defects of the engine cylinder body and cylinder cover. The method comprises the following steps: extracting a suspected defect area, introducing a loss function for verification, constructing a causal graph, calculating the probability of each defect type through causal inference, providing a decision basis for final output decision, and finally outputting a defect result. By integrating multi-angle illumination, multi-spectral imaging and laser scanning systems, rich information of the surface under different physical characteristics can be obtained, and it is ensured that various types of defects can present high contrast characteristics under at least one imaging mode.

The invention relates to the technical field of oil cylinders, and discloses a quick-response hydraulic oil cylinder which comprises a bearing seat, a base shell is connected to the bottom of the bearing seat, a cylinder barrel is connected to the top of the bearing seat, a hydraulic cavity is formed in the cylinder barrel, a cylinder cover is installed at the upper end of the cylinder barrel, and a supporting piece is slidably inserted into the cylinder cover in a sealed mode. The upper end of the supporting piece is connected with an assembly table, the lower end of the supporting piece is connected with a first piston block, the outer wall of the cylinder barrel is connected with oil supply equipment, and the outer wall of the cylinder barrel and the outer wall of the oil supply equipment are jointly sleeved with a protective shell. The device is diversified in function, can meet the working requirements of the assembly table, can achieve a quick response effect, further improves the cooling effect, and enables the oil cylinder to be better in use effect.

The invention discloses spraying and flushing equipment and technology for an engine cylinder cover, and relates to the technical field of engine cylinder covers, a cleaning tank is fixedly connected to the top of a fixing seat, and a placing component is movably connected to the inner side of the top of the cleaning tank. The spraying mechanism is arranged in the recycling shell, so that treated water flow in the recycling shell is pumped into the storage shell through the filtering mechanism, the water flow in the storage shell is fed into the spraying mechanism through the connecting mechanism, and therefore the spraying mechanism conducts spraying and flushing work on the engine cylinder cover hoisted in the cleaning tank, and the angle of the spraying mechanism can be adjusted; according to the cylinder cover cleaning device, a plurality of nozzles are arranged to ensure that the cleaning liquid can cover each part of a cylinder cover, a plurality of nozzles are needed for spraying from different angles for some cylinder covers with complex shapes, spraying at different angles can be realized through the fixed multi-angle nozzles, and parts such as a groove and a channel of the cylinder cover can be ensured to be flushed by the cleaning liquid.

The utility model relates to the technical field of engines, and particularly discloses an intake manifold assembly which is arranged between an air damper and air inlet channels on an air cylinder cover in a communicated mode and comprises an upper shell and a lower shell which are in butt joint with each other, a main cavity is formed between the upper shell and the lower shell, and a flange connector is arranged at one end of the lower shell. One end of the flange joint communicates with the main chamber, and the other end of the flange joint communicates with the throttle valve; a plurality of manifold cavities are formed in the end, away from the flange connector, of the lower shell, communicate with the main cavity and communicate with the multiple air inlet channels correspondingly. An oil rail is arranged on the upper shell, a plurality of mounting pipes are arranged on the lower shell, one mounting pipe is communicated with one manifold cavity, oil sprayers are arranged in the mounting pipes, and the oil sprayers are communicated with the oil rail; one end of the oil sprayer far away from the oil rail extends out of the manifold cavity; the problems that under the same displacement, a naturally aspirated engine is usually low in power, low in overall engine efficiency and the like are solved.

The utility model belongs to the field of sealing ring devices, and particularly discloses a sealing structure used between a cylinder body and a cylinder cover of an air compressor, which comprises the cylinder body, the cylinder cover, a bolt and an O-shaped ring, the lower end of the cylinder cover is inserted into a groove of the cylinder body, the cylinder cover and the cylinder body are fastened through the bolt, a chamfer A with a triangular section is arranged at an orifice of an inner hole of the cylinder body, and the O-shaped ring is arranged in the cylinder body. An O-shaped ring is embedded in the chamfer A, the inner diameter of the O-shaped ring is smaller than the outer diameter of the insertion end of the lower end of the cylinder cover, and the outer diameter of the O-shaped ring extends to the outside of an orifice of the inner hole of the cylinder body; the sealing structure is arranged at the joint of the cylinder body and the cylinder cover, the sealing effect is achieved by utilizing the gap of the chamfer and combining the elastic deformation of the O-shaped ring during installation, and the phenomenon that the O-shaped ring is damaged due to the fact that the installation gap is too small when the cylinder body and the cylinder cover are installed can be effectively prevented.