52 results about "Valve timing" patented technology

An intelligent heat pump system autonomously manages thermal regulation in heating and cooling modes using real-time sensor data and adaptive control algorithms. The system comprises a heat pump integrated with components including a supply valve, regulating valve, return valve, and compressor expander, along with multiple sensors configured to monitor temperature and pressure conditions at various points, including the reservoir, cold side, and hot side. A removable memory stores a directive file containing operational parameters, including target temperatures, valve timing, and pressure control data. A control unit with a processor executes firmware modules that include sensor calibration routines, motor and valve control logic, and an adaptive algorithm that continuously compares real-time sensor input against target parameters. Based on deviations, the system dynamically adjusts component operations to regulate refrigerant flow, internal energy, temperature, and pressure, thereby driving the system toward a steady-state thermal condition. This autonomous system ensures efficient performance, enhanced temperature stability, and optimal energy usage across a range of varying environmental conditions.

The invention relates to the technical field of automobile power control, in particular to a self-learning method and device of an engine, a vehicle, a medium and a program product.The method comprises the steps that under the condition that it is detected that the engine is started, if the rotating speed of the engine is within a certain rotating speed interval, the engine is started; and if a rotor of the variable inlet cam timing system of the engine is located at the initial position and the rotor of the variable inlet cam timing system of the engine is located at the initial position, entering a continuous self-learning mode, and collecting camshaft and crankshaft position signals of the variable inlet cam timing system so as to perform phase correction according to the camshaft and crankshaft position signals. Therefore, the problem that the valve timing control effect and the engine performance are affected due to signal deviation or response lag caused by the fact that engine control is conducted depending on fixed parameters or only based on an open-loop adjusting mode in the prior art, long-term operation of the engine and frequent working condition changes in a hybrid power mode are difficult to adapt is solved.

The invention belongs to the technical field of internal combustion engine power devices, and discloses a double-piston mechanism for an internal combustion engine, which comprises a cylinder body, and more than one cylinder is arranged in the cylinder body; an air inlet seat and an air outlet seat are installed on the upper portion and the lower portion of the cylinder body respectively, an air inlet pipe and an air outlet pipe are arranged in the air inlet seat and the air outlet seat respectively, and an air inlet channel and an air outlet channel are arranged in the air inlet pipe and the air outlet pipe respectively. A control device for gas distribution is arranged at the corresponding position of each cylinder; a high-pressure oil pump is arranged outside the cylinder body, and the high-pressure oil pump is communicated with the oil sprayer through a high-pressure oil pipe; a piston assembly I and a piston assembly II are symmetrically arranged in each cylinder body, and a bevel gear set I and a bevel gear set II which are matched with the piston assembly I and the piston assembly II to transmit power are further arranged in each cylinder body. The power performance of the internal combustion engine can be improved through the two piston assemblies, the device is small in size and light in weight, and single-machine fuel consumption and operation cost are effectively reduced.

The hydraulic oil can be reused without providing a check valve in the oil control valve.SOLUTION: The valve timing adjustment device includes a rotor 20 supported rotatably within a predetermined rotation angle range with respect to a housing 10 rotating together with a crankshaft and transmitting torque from the crankshaft to a cam shaft 70 by rotating together with the housing 10, an advance oil passage 41 supplying and discharging hydraulic pressure to and from an advance hydraulic chamber, a retard oil passage 42 supplying and discharging hydraulic pressure to and from a retard hydraulic chamber, an OCV30 supplying hydraulic pressure to the advance oil passage 41 and the retard oil passage 42 via a supply port 31a, a recycle oil passage 43 provided in the rotor 20 and connecting the advance hydraulic chamber and the retard hydraulic chamber to the supply port 31a, and a check valve 60 provided in the recycle oil passage 43 and communicating the hydraulic pressure side of the advance hydraulic chamber and the retard hydraulic chamber with the supply port 31a.SELECTED DRAWING: Figure 1

The electric valve timing control apparatus of the present application controls an electric valve timing apparatus which changes valve timing by changing a relative rotation phase of a camshaft with respect to a crankshaft of an internal combustion engine using a motor coupled to the camshaft, and includes a control section which, when changing the relative rotation phase of the camshaft using the electric valve timing apparatus after a stop process of the internal combustion engine, changes a phase changing method for changing the camshaft from a current phase to a target phase based on a relationship between the current phase and the target phase of the camshaft.

An intelligent heat pump system autonomously manages thermal regulation in heating and cooling modes using real-time sensor data and adaptive control algorithms. The system comprises a heat pump integrated with components including a supply valve, regulating valve, return valve, and compressor expander, along with multiple sensors configured to monitor temperature and pressure conditions at various points, including the reservoir, cold side, and hot side. A removable memory stores a directive file containing operational parameters, including target temperatures, valve timing, and pressure control data. A control unit with a processor executes firmware modules that include sensor calibration routines, motor and valve control logic, and an adaptive algorithm that continuously compares real-time sensor input against target parameters. Based on deviations, the system dynamically adjusts component operations to regulate refrigerant flow, internal energy, temperature, and pressure, thereby driving the system toward a steady-state thermal condition.

A valve train method for a dual-lift camshaft in a range-extending engine belongs to the field of automotive engine technology. The invention includes the following steps: Cam profile design: designing the cam profile of the camshaft, wherein the cam buffer section adopts a constant acceleration-constant velocity profile, and the cam working section adopts a high-power polynomial cam profile design method to design the first cam profile and the second cam profile respectively; Cam profile correction: using a cam profile dynamic correction method, obtaining the final first target cam profile and the second target cam profile used for machining the camshaft; Operating condition selection and valve drive: selecting the engine's operating point, and driving the valves to open and close according to the corresponding valve motion law through a rocker arm valve train mechanism to achieve valve train operation. This invention can solve the technical problems of existing fixed-lift camshafts in range-extending engines, which cannot simultaneously meet the requirements of economic operating conditions and rated operating conditions, as well as poor NVH performance and high mechanical losses.

The utility model provides an overhead valve guide air inlet type two-stroke engine which solves the problems that waste gas cannot be fully swept away due to the fact that a four-stroke working mode of a traditional overhead valve type engine is improved into a two-stroke working mode, and combustion efficiency and emission performance are poor. According to the technical scheme, the overhead valve guide air inlet type two-stroke engine comprises an engine body set and an air distribution mechanism provided with an overhead valve, an air guide pipe moving along with an air inlet valve rod through a support sleeve is arranged on the air inlet valve rod of the air distribution mechanism, the air guide pipe is close to the head of the air inlet valve, and a front end air outlet is reserved between the front end of the air guide pipe and the head of the air inlet valve. The rear port of the gas-guide tube communicates with the gas inlet channel; an air inlet cam of the air distribution mechanism is provided with an air inlet cam protruding part which pushes the front end of an air guide pipe of an air inlet valve to stretch into an inner cavity of the air cylinder body. By guiding and scavenging the inlet air, the engine can go deep into the cylinder body to purge the combusted waste gas, open the exhaust valve to work and fully sweep the waste gas, so that the scavenging efficiency is greatly improved, and the combustion efficiency and the emission performance are improved.

The application discloses a timing chain assembling and adjusting device and method of a V-type engine and belongs to the technical field of passenger car engine research and development trial assembling and adjusting, and comprises a layered assembling module, a tensioning chain module and a tightening camshaft sprocket module.The layered assembling module is used for sequentially assembling an oil pump chain set, a left camshaft chain set and a right camshaft chain set and tightening an oil pump sprocket.The tensioning chain module is used for sequentially tensioning the left camshaft chain, the right camshaft chain and the oil pump chain.The tightening camshaft sprocket module is used for tightening a right-row camshaft sprocket, a right-in camshaft sprocket, a left-row camshaft sprocket and a left-in camshaft sprocket in a clockwise direction as a tightening sequence.The camshaft and the crankshaft are simultaneously operated, so that power transmission efficiency attenuation is reduced, valve timing lag is eliminated, engine valve timing precision, engine performance and quality are improved, the failure rate is reduced, maintainability and whole-machine reliability are improved, and the service life of the engine is prolonged.

Drive control device (50) for an internal combustion machine (20), the internal combustion machine comprising a fuel injector (21) configured to inject fuel, an intake timing variation mechanism (22) configured to control the opening / closing of an intake valve provided at an intake port, and an exhaust timing variation mechanism (24) configured to control the opening / closing of an exhaust valve provided at an exhaust port, wherein the drive control device comprises: a valve timing control unit (56) configured to perform a wetting reduction control to control at least one of the intake timing variation mechanism and the exhaust timing variation mechanism to reduce a fuel wetting quantity, which is a quantity of fuel adhering to a wall surface of the internal combustion machine facing an injection field in which the fuel is to be injected, by means of a counterflow blown back to the intake port when a request is made to reduce the fuel wetting quantity during a start of the internal combustion machine, wherein the valve timing control unit is configured to to execute no control other than the wetting reduction control in order to avoid advancing the intake valve opening timing before top dead center of the internal combustion engine's exhaust point during the first stroke after the internal combustion engine's start-up, and to implement the control as the wetting reduction control in order to advance the valve opening timing of the intake valve before the top dead center of the exhaust of the internal combustion engine during a second and later stroke after the start of the internal combustion engine.

This invention discloses a variable timing device for a diesel engine intake valve, comprising a housing, an upper push rod, a lower push rod, a spring, a roller, and a hydraulic unit. The upper end of the housing has an oil inlet, an oil outlet, and a return oil outlet, and the middle of the housing has a transverse lubricating oil channel. The upper push rod is located in the oil chamber at the upper end of the housing, with a piston in the middle of the upper push rod positioned between the oil inlet and the oil outlet. The lower push rod is located in the cavity at the lower end of the housing, opposite to the upper push rod. The spring is fitted onto the middle of the lower push rod, and the roller is located in a groove at the bottom of the lower push rod, with its outer ring supported on the outer contour of the cam on the camshaft. The hydraulic unit is located on one side of the upper end of the housing. This invention adopts a two-section structure for the intake push rod, and the return oil path is controlled by a two-position, one-way solenoid valve. This allows for both normal intake timing and delayed intake timing during valve timing, achieving precise control of the valve opening and closing with high accuracy and stability.

The invention relates to a valve mechanism with adjustable cam profiles, which comprises a multi-profile cam shaft, and the multi-profile cam shaft drives a valve to move through a valve adjusting lever, an oil plug, a hydraulic switch and a spring. The position of the air distribution adjusting lever on the cylinder cover is determined through the oil distribution shaft and the fixed base and is fastened through a fixing bolt. The air distribution adjusting lever is communicated with the supporting body engine oil channel through the oil receiving disc and the sealing rubber ring and plays a role. According to the valve timing mechanism with the adjustable cam profile, adjustment of various cam profiles can be achieved, the valve timing requirements under different working conditions are met, the working process of an engine can be flexibly adjusted under the different working conditions, and economical efficiency and emission performance are improved; and meanwhile, the adjustment of continuous gas distribution parameters is converted into the adjustment of a few cam profiles, so that the complexity of an engine control system is greatly reduced, and the usability of the mechanism is improved.

The present application relates to the technical field of engine valve timing measurement, and discloses an engine valve timing measurement device, which comprises a driving mechanism and a measuring mechanism; the driving mechanism comprises a motor and a shaft coupling, the motor comprises an encoder, the output shaft of the motor is connected with the shaft coupling, and the shaft coupling is used for being connected with a crankshaft of an engine; the measuring mechanism comprises a base, a first displacement measuring device, a second displacement measuring device and a tappet component, and the first displacement measuring device is arranged on the base. The present application also discloses an engine valve timing measurement method, which comprises reading a first rotation angle alpha1 of the crankshaft when a piston actual top dead center is read by the encoder and a second rotation angle alpha2 of the crankshaft when a tappet lift is h, calculating a clamping angle beta of the crankshaft through the first rotation angle alpha1 and the second rotation angle alpha2, obtaining a rotation angle gamma of the crankshaft from a starting point of a valve lift m to a moving starting point of the tappet to the tappet lift h, and calculating a valve timing delta = beta-gamma. The present application does not need to replace the hydraulic tappet.

The embodiment of the invention provides an engine control method and device, electronic equipment, a vehicle and a storage medium, and the method comprises the steps that when it is confirmed that the vehicle meets engine starting and stopping conditions, pre-starting and stopping control is executed, and the pre-starting and stopping control is to control an engine cam of the vehicle to continuously move in the preset adjusting direction; and after the target pre-start-stop duration, the engine camshaft is controlled to stop moving in the preset adjusting direction, the vehicle is controlled to execute engine rotating speed adjusting operation, and engine start-stop control is completed. According to the embodiment, after it is confirmed that the vehicle meets the engine starting and stopping conditions and before the engine rotating speed is changed, the engine camshaft is made to move to adjust the valve timing position based on the pre-starting and stopping control, so that the effective compression ratio is changed, the gas compression pressure in the engine starting and stopping process is reduced, and the engine starting and stopping efficiency is improved. The vibration phenomenon during starting and stopping of the engine is effectively reduced, and the success rate and stability of relieving vibration of the engine are improved.

The present invention relates to a valve timing control device for controlling the opening and closing of a valve having a first pneumatic cylinder and a second pneumatic cylinder. The valve timing control device comprises a first valve body, a first control piston block and a second control piston block. The first valve body has a first air port and a second air port. The first control piston block is movably located in a first chamber of the first valve body. The second control piston block is movably located in a second chamber of the first control piston block. When air is supplied to the first air port, the air is first output to the second pneumatic cylinder via the second air port. When the second pneumatic cylinder reaches a saturation state, the air can further push the first control piston block to move, so that the air is output to the first pneumatic cylinder instead. The valve timing control effect is achieved by using the air transmission method.

Valve timing adjustment device (100, 100a-100i) to be installed on an end section of an output shaft (320) located in an axial direction (AD) at one end of the output shaft, wherein the output shaft is configured to receive a drive force transmitted from a drive shaft (310) in an internal combustion machine (300), and the valve timing adjustment device is configured to use hydraulic pressure to adjust the timing of a valve driven by the output shaft such that it opens and closes, wherein the valve timing adjustment device comprises: a housing (120, 120a) configured to rotate synchronously with the drive shaft; a vane rotor (130) which is received in an interior of the housing and divides the interior of the housing into a plurality of hydraulic chambers (140), wherein the vane rotor is configured to be rotated synchronously with the output shaft; a support spring (50, 50e, 50f) configured to bias the vane rotor relative to the housing in a forward displacement direction or a retardation direction, the support spring comprising: a twisted segment (52); an inner end segment (54, 54e) which is joined to one end of the coiled segment and projects inwards in a radial direction (RD); and an outer end segment (56, 56e) which is joined to another end of the coiled segment and projects outwards in the radial direction; and a bushing component (10, 10a, 10c, 10e) that is fixed to the wing rotor, wherein: The bushing component is formed in a stepped cylindrical tubular shape and includes the following: a large-diameter section (15, 15a, 15c, 15e) formed in a cylindrical tubular shape and located on a radially inner side of the coiled segment, the large-diameter section comprising a straight section (25) located on a radially outer surface of the large-diameter section and extending in the axial direction; and a small-diameter section (13) formed in a cylindrical tubular shape and connected to the large-diameter section on an axial side of the large-diameter section on which the output shaft is placed, wherein the small-diameter section is placed on a radially inner side of the housing and has an outer diameter that is smaller than an outer diameter of the large-diameter section; the coiled segment includes a contact section (58, 58f) located on a radially inner surface of the coiled segment and configured to contact the straight section; and a point of an end of the straight section, which is located on one axial side on which the output shaft is placed, coincides in the axial direction with a point of an end of the contact section, which is located on one axial side, or which is one axial side of the point of the end of the contact section.

The utility model discloses a kind of hydrogen fuel piston type aero-engine special combustion systems, it is related to aero-engine technical field, including fuel supply system, ignition system, combustion chamber, electronic control system, air intake and exhaust system and valve timing mechanism;Fuel supply system includes gas cylinder, gas rail and hydrogen injector, gas cylinder is communicated with gas rail by pipeline, gas rail is connected with hydrogen injector, hydrogen injector is installed on cylinder cover and is set towards combustion chamber;Ignition system is installed on cylinder cover and is used to ignite combustion chamber;Electronic control system is signal connected with hydrogen injector and ignition system;Air intake and exhaust system is respectively arranged at the inlet valve and exhaust valve on cylinder cover, and valve timing mechanism is used to control the opening and closure of inlet valve and exhaust valve.The hydrogen fuel piston type aero-engine special combustion system can improve engine power and response speed, reduce fuel consumption rate, and avoid engine backfire.

The invention belongs to the technical field of valves, and particularly discloses an electromagnetic valve, a gas valve and gas equipment. The electromagnetic valve comprises an electromagnetic driving mechanism, a movable shaft assembly, a valve element assembly, a pressing piece, a pressing reset piece and a timing trigger piece. The pressing piece is arranged on the shell in a sliding mode and matched with the second end of the movable shaft assembly, the pressing piece can actuate the movable shaft assembly to slide to the adsorption position from the separation position when being pressed to the first position from the initial position, a conductive structure is arranged on the pressing piece, and the movable shaft assembly in the adsorption position can magnetically adsorb the valve element assembly to move to the opening position. The electromagnetic driving mechanism can drive the valve element assembly to move to the closing position in the power-on state. And the timing trigger piece is electrically conducted with the conductive structure when the pressing piece reaches the first position, so that the timing trigger circuit is conducted. According to the gas valve timing device, timing closing of the electromagnetic valve and the gas valve can be achieved through a simple and reliable structure, repeated timing can be conducted, and the use safety, reliability and convenience of the gas valve and gas equipment are improved.

The invention relates to a rocket test bed valve timing sequence closed-loop control method and system. The method comprises the steps that S1, the occurrence time Td1 when a previous valve acts is recorded; s2, comparing the occurrence time Td1 with the first action theoretical time Tt1 of the previous valve to obtain a time deviation delta t, namely delta t = Tt1-Td1; s3, if the time deviation delta t is larger than the time threshold value, the next valve is controlled to act according to the actual action time TS1 of the next valve; wherein the actual action time TS1 of the next valve is obtained by superposing the time deviation delta t on the second action theoretical time Tt2 of the next valve, that is, TS1 = Tt2 + / -delta t. According to the method, the action time of the previous valve is monitored in real time, the time deviation is calculated, and the action time of the next valve is dynamically adjusted, so that the accuracy of the action time sequence of the valve is ensured.

The invention discloses a hydrogen passive pre-combustion chamber control method based on residual gas content closed-loop integration, which comprises the following steps of: measuring residual gas pressure in real time and estimating residual gas content through a pressure sensor in a pre-combustion chamber, and only establishing a mapping relationship between the residual gas content and intake valve timing (VVT), a mapping relationship between the residual gas content and an ignition advance angle in an ECU (Electronic Control Unit); after the real-time residual gas content is compared with a preset threshold value, the intake valve closing phase (delay VVT), the throttle opening degree and the backward-moving ignition advance angle are dynamically adjusted, so that short-time high-pressure replacement pulses are formed, and pre-combustion is restrained; and when the residual gas content is reduced to the target level, the VVT, the throttle valve and the ignition advance angle are automatically recovered to the optimal value of ultra-lean combustion. According to the invention, closed-loop self-adaptive cleaning of residual gas is realized, and the precombustion chamber is ensured to be filled with fresh mixed gas and stably ignited under various working conditions.

The application discloses an engine starting failure fault positioning method, an electronic device and a storage medium, relates to the technical field of engine starting, and comprises a starting abnormality preliminary inspection stage, a fault identification stage, a processing and alarm stage and a prevention self-checking stage.The fault identification stage comprises the following steps: determining a fault cylinder according to the size relationship between actual pressure values in each cylinder and preset pressure values; and judging whether the current fault is a valve timing fault according to an abnormal noise signal of the fault cylinder.Through the setting of the starting abnormality preliminary inspection stage, the fault identification stage, the processing and alarm stage and the prevention self-checking stage, the engine cylinder fault can be accurately judged.Meanwhile, the fault cylinder can be determined according to the size relationship between the actual pressure values in each cylinder and the preset pressure values, and whether the current fault is the valve timing fault can be judged according to the abnormal noise signal of the fault cylinder, so that the valve timing fault in the cylinder can be further accurately judged, and the judgment accuracy is improved.

The invention discloses a protection method and device for a supercharged engine and a vehicle. When the supercharged engine is in a humid environment and an EGR system stably operates, the dew point temperature and the first air inlet temperature of air inlet of the supercharged engine after a water-cooling intercooler are obtained; and if the first air inlet temperature is not higher than the dew point temperature, target parameters and the rotating speed of the supercharger are adjusted, so that the air inlet temperature of the supercharged engine after the water-cooling intercooler is adjusted is second air inlet temperature, the second air inlet temperature is higher than the dew point temperature, and the target parameters comprise the opening degree of a throttle valve and / or valve timing. Thus, by adjusting the target parameters and the rotating speed of the supercharger in a matched mode, the air inlet temperature of the supercharged engine behind the water-cooling intercooler is increased, water drops are prevented from being condensed on fins in the water-cooling intercooler and on the pipe wall of an air inlet pipeline behind the water-cooling intercooler, and therefore the supercharged engine is protected.

This invention provides an energy-saving operation control method for a pneumatic ash conveying system in a thermal power plant, belonging to the field of pneumatic ash conveying technology. The method first collects the ash mixing velocity and dust concentration, pre-calculates the heat accumulation at the negative pressure end, and generates a material heat distribution map. Then, it combines two-phase flow parameters to solve for the particle state and kinetic energy loss heat field, simultaneously collecting energy consumption and fan overload signals to complete the operating condition characterization. Using particle kinetic energy loss limits as constraints, an energy optimization model is built, outputting dynamic strategies such as valve timing, opening degree, and initial air supply. The initial flow velocity is matched in the feeding section, valve actions are optimized in the middle section, and segmented speed adjustments are made to form a uniform, mimicry fluid. Downstream, pressure regulation and air replenishment ensure stable conveying. This invention uses the kinetic energy loss of fly ash particles and pipeline heat accumulation as dual constraints. Through multi-parameter sensing modeling, it dynamically matches air volume, valves, and conveying velocity in stages, reducing useless air pressure, air resistance loss, and pipeline heat accumulation from the source, achieving refined energy-saving control throughout the entire pneumatic ash conveying process.

An engine control system is provided with a dual continuously variable valve duration (CVVD) device to optimize engine performance. The system includes an engine with a combustion chamber, an intake valve for selectively supplying an air-fuel mixture, an ignition plug for combustion, and an exhaust valve for expelling exhaust gas. The CVVD device adjusts the intake and exhaust valve durations. A turbine positioned downstream of the engine increases exhaust pressure, followed by a warm-up catalyst to preheat the exhaust gas, and a gasoline particulate filter (GPF) to filter soot. A controller, based on vehicle driving conditions, adjusts ignition timing, intake, and exhaust durations. When lambda (λ) is 1, the controller controls exhaust duration to avoid overlap with intake valve timing by retarding exhaust valve opening and advancing exhaust valve closing, thereby maintaining a negative valve overlap period and enhancing GPF regeneration and emissions control.

The present invention pertains to an advanced system for optimizing the performance of internal combustion engines (ICEs). It features the LaMarche Cycle, which dynamically adjusts valve timing, lift, and duration using magnetic actuators controlled by an electronic control unit (ECU). This system includes an integrated motor driver for precise force, position, speed, temperature, and power sensing, all encapsulated in epoxy for durability. It supports communication protocols such as RS485 and RS422 for seamless integration with external devices. The system offers real-time monitoring and control through a graphical user interface (GUI), enabling instant switching between operational modes to maximize fuel efficiency, power output, and reduce emissions. The design minimizes maintenance with lubrication-free bushings and versatile mounting options, including clevis / universal joints. This invention significantly enhances ICE efficiency, reduces emissions, and provides adaptable, user-friendly control for various applications.

The application discloses a semi-solid die-casting method of magnesium alloy shock-absorbing tower center feeding partition mold temperature coordination, relates to the high-pressure die-casting control technical field, and aims at the problems that far-end cold isolation, gas trapping and hot spot shrinkage hole are prone to occur in the bottom or side edge feeding, uniform mold temperature and experience exhaust of thin-thick coupling parts and are difficult to be once shaped, and proposes a four-step coordination method: establishing center feeding or multi-point center neighborhood feeding, and completing the consistent design of main runner, runner, fan-shaped gate and injection curve; according to the filling path, the fixed mold and the movable mold are configured with partition mold temperature, and are linked with the injection timing; along the gas trapping trace, the open-close exhaust valve and the end overflow cavity are arranged, the total equivalent exhaust area and the valve timing are calculated; the process column is arranged at the hot spot, and the neck communication structure is arranged, and the CT, air tightness and cavity temperature and pressure curve backfilling are combined to form a parameter package. The scheme realizes the coordinated pressure drop of cold isolation, gas trapping and shrinkage hole, shortens the trial and repair cycle, improves the first pass rate and has the migratory property.

An oil passage control valve include: a sleeve, including an internal passage extending in an axis direction and through which hydraulic oil passes, an annular groove formed on an outer periphery, and an opening penetrating in a radial direction in a region of the annular groove and through which hydraulic oil passes; a valve body, slidably housed in the internal passage and opening and closing the opening; a filter member of a strip-like shape, annularly wrapped around and fixed to the annular groove; and a drive element, driving the valve body. The sleeve includes a protrusion protruding from a bottom surface and a side surface of the annular groove at a position offset from the opening within the region of the annular groove. The filter member includes a notch engaged with the protrusion, a filtration part facing the opening, and a joint where both end regions overlap.

The invention discloses an air valve mechanism and an air distribution mechanism for a hybrid engine, the hybrid engine and a vehicle, and relates to the technical field of engine air distribution mechanisms, the air valve mechanism for the hybrid engine comprises an air valve, an air valve spring and an air valve transmission set, the air valve spring and the air valve transmission set are arranged on the air valve, and the air valve extends in the axial direction; the valve transmission set comprises a cam shaft and a tappet, the tappet is arranged between the cam and the valve, and the cam shaft abuts against the tappet. According to the valve mechanism for the hybrid engine, through the arrangement that the cam shaft is combined with the tappet, the structure can be simplified, the occupied space can be reduced, and cost can be reduced.

1. Name of the designed product: detachable quick valve. 2. Use of the designed product: for controlling the intake valve timing of vehicle engine. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view 1.

The invention provides a valve mechanism of an engine, the engine and a control method of the valve mechanism of the engine. The air distribution mechanism comprises an air inlet cam shaft, an exhaust cam shaft, a transmission assembly and a phase control assembly. The air inlet camshaft comprises an air inlet camshaft body and an air inlet camshaft gear located at one end of the air inlet camshaft body. The exhaust camshaft includes an exhaust camshaft body and an exhaust camshaft gear located at one end of the exhaust camshaft body. The air inlet cam shaft gear and the exhaust cam shaft gear are located on the same side. The transmission assembly comprises a first gear, and the first gear is meshed with the air inlet cam shaft gear and the exhaust cam shaft gear at the same time. The first gear is used for power transmission between the air inlet cam shaft gear and the exhaust cam shaft gear and a crankshaft gear of an engine. The phase control assembly is installed on the air inlet cam shaft and the exhaust cam shaft and used for adjusting the phases of the air inlet cam shaft and the exhaust cam shaft.