21 results about "Compression release" patented technology

This invention relates to the field of heat dissipation airflow mesh technology, and provides an airflow mesh for passive airflow cooling, including a pipe assembly, a clamping assembly, and an adjusting assembly. The pipe assembly includes a main pipe, a secondary pipe, an adjusting pipe, a vertical plate, and a horizontal plate. The clamping assembly, sleeved on the outer wall of the adjusting pipe, includes a fixed plate, a movable part, a rotating plate, and a support block. The adjusting assembly is located at one end of the main pipe and inside the main and secondary pipes, and includes a motor, a rotating shaft located at the output end of the motor, a drive bevel gear sleeved on the end of the rotating shaft away from the motor, a rotating part located on the end of the drive bevel gear away from the rotating shaft, and a spiral part sleeved on the rotating part. The function of the pipe assembly is to connect traditional heat dissipation pipes in sections, and through the combined effect of the septum effect and Bernoulli's principle, to compress the gaseous working fluid and release heat, which is conducted away through the metal thermally conductive material, thereby reducing the temperature of the airflow after it passes through by approximately 50 watts / m² / m / s.

This invention discloses an engine secondary compression release braking device, an engine, and a vehicle, comprising: an intake valve assembly; an intake cam including a base circle, a first convex portion, and a second convex portion; an intake rocker arm, the intake cam driving the intake rocker arm to rotate, causing the second end of the intake rocker arm to move toward the intake valve assembly, the engine being in its power stroke during the first convex portion abutting against the intake rocker arm; an actuator located between the second end of the intake rocker arm and the intake valve assembly, used to abut against the intake valve assembly and drive the intake valve of the intake valve assembly to open; and a drive mechanism used to drive the actuator to move relative to the second end of the intake rocker arm. During the engine's power stroke, the intake valve allows air to enter, ensuring the amount of gas in the cylinder during the engine's secondary compression release, thereby ensuring the engine's braking power; the intake valve also reduces the temperature of the gas entering the cylinder, thereby reducing the thermal load on the engine's fuel injectors, intake valves, and exhaust valves.

A compression-release engine brake system for operating at least one exhaust valve of an engine during an engine braking operation. The brake system comprises a lost motion exhaust rocker assembly and a dual stage hydraulic solenoid valve. The exhaust rocker assembly includes an exhaust rocker arm and a compression brake control module (CBCM). The CBCM maintains the at least one exhaust valve open when in the engine braking operation. The CBCM includes a casing, an actuation piston disposed outside the casing so as to define an actuation piston cavity, a reset check valve, and a compression brake actuator disposed in the casing. The actuation piston reciprocates relative to the casing. The compression brake actuator includes a control piston that engages the check valve when deactivated so as to unlock the actuation piston cavity and disengages from the check valve when activated so as to lock the actuation piston cavity.

To provide an engine control device that can rapidly raise the temperature of the catalyst and maintain an appropriate temperature. [Solution] An engine control device for controlling an engine, wherein when the catalyst temperature of a catalyst that purifies the exhaust gas of the engine is below a first threshold temperature, it performs compression release control to stop fuel injection from the injector in selected cylinders, which are some of the cylinders among a plurality of cylinders of the engine, and increase the amount of fuel injected in non-selected cylinders different from the selected cylinders, and when the catalyst temperature is above the first threshold temperature, it performs Miller cycle control to operate the intake valve to reduce the amount of intake air in all of the plurality of cylinders compared to when the temperature is below the first threshold temperature, and to control the amount of fuel injected.

The utility model is applicable to the field of screw air compressors, and provides a screw air compressor heat energy recovery device which comprises a case, a compression assembly arranged in the case and a heat recovery assembly arranged in the case, the case comprises a water tank, an air inlet, an air outlet, a liquid inlet and a liquid outlet, the compression assembly comprises a driving screw and a driven screw, and the heat recovery assembly comprises a heat recovery assembly. The heat recovery assembly comprises an air distribution plate, a plurality of heat dissipation pipes and an air collection pipe, the water tank is filled with water through a liquid inlet, air can be sucked from an air inlet during rotation by rotating a driving screw rod and a driven screw rod which are meshed with each other, and then the air is discharged into the air distribution plate from an air guide pipe after being rotationally compressed, so that the air pressure is increased, and the heat recovery efficiency is improved. The compressed high-temperature air releases heat through the heat dissipation pipe to enter water to heat the water, then heat energy of the air is recycled, the compressed air releasing the heat is discharged from the air outlet through the air collection pipe, and hot water is discharged from the liquid outlet.

The utility model belongs to the technical field of vehicles, and discloses a valve driving device and a vehicle. The valve driving device comprises a rocker arm and an adjusting assembly, a containing cavity is formed in the rocker arm, the adjusting assembly comprises an adjusting piece, an adjusting valve, a brake piston and a reset piece, the adjusting piece and the brake piston are slidably arranged at the two ends of a piston body respectively, and the first end of the adjusting piece and the first end of the brake piston are oppositely arranged; the adjusting valve is arranged between the adjusting piece and the brake piston, the adjusting valve slides along the rocker arm and can adjust the lift of the air valve abutting against the brake piston, and the reset piece can guarantee normal reset of the adjusting valve. According to the valve driving device and the vehicle, the air inlet amount of the valve in the air inlet stroke can be increased, the braking power released through first-time compression of high-power braking is improved, the valve driving device can be opened again in the working stroke, fresh air enters a cylinder, and the proportion of fresh air released through second-time compression of high-power braking is increased; and the heat load released by second-time compression in high-power braking is reduced.

The utility model discloses a spring compression and release electric reciprocating device of adjustable output force value relates to mechanical device technical field. It includes the device ontology, and the ontology contains with the ejection trigger gear that reduction motor output shaft links to each other, is installed in the gear on the limit sliding block trigger dial, the connecting module, the limit sliding block of small spring area pull rod, and the connecting module is connected with the pull rod reduction motor, and the bottom is equipped with hollow adjusting bolt, and the pull rod is covered in the connecting module and bolt, and the module top end resistance touches the limit baffle ring of pull rod upper end portion, and the hollow adjusting bolt outer wall cover precision locking nut (diagonal set locking use fixed small hole), and the pull rod and bolt combination outer circle cover big spring, and big spring upper end connects precision locking nut, and lower end is equipped with fixed base, and pull rod bottom end is equipped with the head of spring. The device realizes spring compression release automation, and the structure is compact, can adjust output force value, is applicable to spring impactor, mortar penetration instrument, orthopedics dismantles nail and automobile sheet metal scene.

The present application relates to the technical field of space release mechanism, and particularly relates to a fuse type compression release mechanism. The fuse type compression release mechanism provided by the present application comprises a compression seat, a compression bushing, a compression structure, a tensioning rope and a fuse assembly. The compression bushing is arranged between the compression structure and the compression seat. The tensioning rope is used to connect the compression seat and the compression structure, so as to compress the compression bushing on the compression seat. The fuse assembly comprises a resistance wire, which is used to fuse the tensioning rope. The present application realizes compression locking by using the physical tensioning force of the tensioning rope, and realizes release by fusing the tensioning rope through the resistance wire in the fuse assembly. The present application has simple structure and high reliability. Since the fuse type tensioning rope is adopted, the present application does not need to rely on the action of triggering powder, has small impact during release, does not produce harmful gas, and can be reused by replacing the tensioning rope.

The application designs a high-load high-precision light loading device for solar wing ground assembly, which is composed of a loading assembly and a fine adjustment assembly, the loading assembly includes a loading interface module and a driving module, wherein the loading interface module is installed at the front end of the driving module, the loading interface module is used to ensure that the steel belt in the compression release device is uniformly stressed during loading, and the driving module provides driving force for the whole loading assembly and ensures high-precision loading; the loading assembly is driven by a servo motor, and motion conversion is realized by using a ball screw transmission, and the loading motion is transmitted to the compression release device through a transmission chain, aiming to meet the ground loading demand of single-point accurate loading during the compression assembly of the circular solar wing; the fine adjustment mechanism is used to realize the fine adjustment of the assembly position of the loading device and the target of unloading the gravity of the loading device.

The application belongs to the technical field of material grinding and crushing, and particularly relates to a crushing device for fish meal processing, which comprises an automatic pulse spraying system, a double-path spraying pipe, a screen grading mechanism and a grinding and crushing mechanism. The automatic pulse spraying system comprises a gas compression assembly, a jet gas valve assembly, a wind pump assembly and a spraying shell. The gas compression assembly is rotationally arranged in the spraying shell. The jet gas valve assembly is symmetrically arranged in the gas compression assembly. The wind pump assembly is arranged on the spraying shell. In the process of continuously conveying materials through airflow, the device can also intermittently generate pulse airflow with increased pressure. On the one hand, the device can reduce the contact between powder materials and the pipe wall. On the other hand, the device can also strip the materials that have been attached. Through the structural design of the automatic pulse spraying system, the device can automatically complete the gas compression release and turning of the compression chamber while the central rotating shaft of the wind pump body rotates.

The present application relates to the field of aerospace technology, in particular to a kind of deployment testing device under thermal vacuum environment, including support mechanism, sliding mechanism and compression release mechanism;Support mechanism is placed in fixed surface, sliding mechanism is arranged on the upper surface of support mechanism, lifting mechanism is arranged at one end of support mechanism, and is connected with sliding mechanism, sliding mechanism is used to guide when lifting mechanism is deployed;Compression release mechanism is at least one and is arranged in support mechanism, and is communicated with power supply, initially, compression release mechanism is used to compress lifting mechanism, after power on, compression release mechanism releases lifting mechanism.The deployment testing device under thermal vacuum environment provided by the present application significantly improves the accuracy and reliability of test results, and provides strong guarantee for the effectiveness of solar wing on-orbit deployment.

The utility model relates to the technical field of masonry strength detection, concretely refers to a kind of masonry strength on-site detection device, including handle part, the handle part one side is fixed with support, slidingly connected with movable frame on the handle part, working spring is further connected between the movable frame and handle part, while rotating drum is rotated on the movable frame, pressure release sliding slot is opened on the rotating drum side wall, sliding block is arranged on the support, the sliding block slides along pressure release sliding slot, receiving cylinder is rotatably installed on the support and located in the front end of rotating drum, a plurality of receiving holes for inserting and placing measuring nail are opened on the receiving cylinder, connecting rod is fixed on the movable frame, the protruding plate is fixed on the front end of connecting rod after passing through the center of rotating drum, the protruding rod is fixed on the front end of protruding plate, multiple measuring nails can be filled simultaneously, the compression release of working spring and the conversion push-out of measuring nail are carried out synchronously by using motor to drive power shaft to rotate, a large amount of operation time is saved.

The invention relates to the technical field of spaceflight, in particular to an unfolding test device in a thermal vacuum environment, which comprises a supporting mechanism, a sliding mechanism and a pressing and releasing mechanism, the supporting mechanism is placed on the fixed face, the sliding mechanism is arranged on the upper surface of the supporting mechanism, the lifting mechanism is arranged at one end of the supporting mechanism and connected with the sliding mechanism, and the sliding mechanism is used for guiding the lifting mechanism when the lifting mechanism is unfolded. The at least one pressing and releasing mechanism is arranged on the supporting mechanism and communicated with the power source, at the beginning, the pressing and releasing mechanism is used for pressing the lifting mechanism, and after being powered on, the pressing and releasing mechanism releases the lifting mechanism. According to the unfolding test device in the thermal vacuum environment, the accuracy and the reliability of a test result are remarkably improved, and a powerful guarantee is provided for the effectiveness of solar wing on-orbit unfolding.

The application discloses a kind of side one-way exhaust shoes of built-in air guide channel, it is related to shoe technical field, including vamp, exhaust mechanism and shoelace, the bottom of vamp is integrally die casting and is formed with exhaust mechanism, exhaust mechanism is set, through the action of foot sole treading and lifting driving air bag compression release, first one-way valve and second one-way valve are pushed using air pressure difference to realize one-way conduction, realize the one-way air guide effect of directional exhaust of hot gas and moisture in shoe, effective barrier of outside mud and dust, continuously keep dry in shoe;Sealing mechanism is set, long-term stable waterproof dustproof sealing between shoe sole and non-slip pad is realized by a variety of material layers, and the problem of seepage water into ash, fitting failure is eliminated.

The invention discloses a mechanical braking and in-cylinder compression release braking combined control method and system, and relates to the technical field of service braking. Comprising the following steps: collecting historical data, setting an activation condition, dividing scenes according to a vehicle speed difference value, a road gradient and a road adhesion coefficient, marking priorities, and generating scene labels; the method comprises the following steps: collecting real-time data of a vehicle, a driving condition and operation, and preprocessing the collected real-time data; according to the technical key points, historical data are analyzed, labels are given to different scenes, the problems that in the current brake technology, the starting precision is insufficient, and the applicable scene is single are solved, braking can be accurately started under various conditions, data are collected through active input, automatic judgment and scene adaptation, and the braking precision is improved. Scenes are divided in combination with the vehicle speed difference, the gradient and the road condition, response is rapid, accuracy is high, false triggering can be effectively avoided, meanwhile, an accurate scene basis is provided for a subsequent control strategy, and the method has a good use prospect.

A mechanical clutch boosting structure of a clutch relates to the technical field of boosting structures and comprises a side plate, a clutch brake pedal arm is hinged to the side plate, an elastic component is hinged to the side plate, the swing end of a boosting rocker arm is hinged to the pressing end of the elastic component, and when the clutch brake pedal arm is in an initial state, the elastic component pushes the clutch brake pedal arm outwards; when the clutch brake pedal arm is stepped down, the power-assisted rocker arm swings downwards to compress the elastic assembly to a polar point, and the clutch brake pedal arm is located at a first-stage power-assisted position; when the clutch brake pedal arm is continuously treaded down, the power assisting rocker arm crosses the first-stage power assisting position, the elastic assembly is compressed and released to push the power assisting rocker arm to swing upwards, and the clutch brake pedal arm is driven to be located at the second-stage power assisting position. The power assisting structure solves the problems that normal operation of a hydraulic oil cylinder in a power assisting structure in the prior art depends on pressure provided by a hydraulic system, if the pressure of the hydraulic system is too high, adverse effects can be generated on the service life of related components, and oil leakage and abnormal sound are prone to occurring.

The application discloses a band type compression release mechanism, which comprises a band assembly (3) connected to a target parent body (1) at one end and connected to one end of a fusible rope (4) at the other end, a rope pre-tightening device (6) connected to the other end of the fusible rope (4) and used for adjusting the tightness of the fusible rope (4), and a hot knife assembly (5) arranged close to the fusible rope (4) and used for heating and fusing the fusible rope (4) to release the band assembly (3) and realize the unlocking and release between the target child body (2) and the target parent body (1). The scheme of the application is used for overcoming the shortcomings of large impact and single use of the existing pyrotechnic compression release mechanism and has the advantages of small impact in the release process and low cost.

The utility model belongs to the technical field of screening, and discloses a multi-stage particle screening device of an antioxidant oscillating granulator, which comprises a vertically arranged cylinder, a feeding hole is formed in the upper end of the cylinder; multiple groups of screening units are arranged in the cylinder along the axis direction of the cylinder; each screening unit comprises a fixing ring and a screening disc, the fixing rings and the screening discs are coaxially arranged with the cylinder, the screening discs are located above the fixing rings, the fixing rings are fixed to the circumferential wall of the inner side of the cylinder, the screening discs are slidably connected with the inner wall of the cylinder, and a plurality of screening holes are formed in the screening discs. The fixed ring and the sieve tray are connected through a plurality of elastic pieces which are annularly and uniformly distributed; the diameters of screening holes of each group of screening units are gradually reduced from the upper end to the lower end of the cylinder; according to the multi-stage screening device for the antioxidant particles, the multi-stage screening process of the antioxidant particles is achieved, the multiple screening units work synchronously, the screening efficiency and the screening continuity are effectively improved, and meanwhile the problem that the antioxidant particles are blocked at screening holes is effectively solved through vibration generated by compression and release of the elastic pieces.

The utility model relates to the technical field of engine oil filters, and discloses a multifunctional engine oil filter which comprises a filter body, an oil outlet pipe penetrates through and is fixedly connected with the top of the filter body, a filter element is fixedly connected with the top of the inner wall of the filter body, and a fixing support is fixedly connected with the middle of the inner wall of the filter element. The top and the bottom of the fixing support penetrate through and are rotationally connected with fixing rings, the inner walls of the fixing rings are fixedly connected with first springs, one ends of the first springs are fixedly connected with rotating rods, one ends of the rotating rods are fixedly connected with propellers, and the outer rings of the rotating rods are fixedly connected with evenly-distributed connecting rods. According to the utility model, the rotating rod and the connecting rod are driven to rotate through the rotation of the propeller, so that the brush wipes the inner wall of the filter element, the first spring is pressed through the impact force of engine oil flow, and the rotating rod moves up and down through the release of the pressure of the first spring, thereby reducing the blockage of the filter element and prolonging the service life of the filter.

An engine brake reset valve includes a cylindrical housing body having an end and a central cavity therein. The reset valve includes a first valve part attached to a second valve part, wherein the central cavity is sized to receive the first valve part and the second valve part. The first and second valve parts are movable within the central cavity between open and closed positions. When the second valve part is in a closed position, the second valve part engages and blocks the central orifice to prevent fluid pressure from entering the central orifice. When the second valve part is in an open position, the second valve part moves away from the central orifice to enable fluid pressure to enter the central orifice.

The invention relates to a winding, pressing and releasing mechanism, and belongs to the technical field of spacecraft unfolding. The winding cylinder is of a cylinder structure which is vertically arranged in the axial direction. The n elastic unfolding structures are laminated and wound on the outer wall of the winding drum; the tail end of the elastic unfolding structure located on the outermost layer is provided with a pressing strip connector assembly. The rest (n-1) elastic unfolding structures are pressed, wound and fixed by the outermost elastic unfolding structure; the pressing rod assembly is located on the side wall of the elastic unfolding structure on the outermost layer. The compression bar assembly tangentially blocks the compression bar interface assembly, so that the elastic unfolding structure on the outermost layer is compressed and fixed; the fusing assembly is arranged on the winding drum; the fusing assembly is used for locking and releasing the pressing rod assembly; according to the pressing and releasing mechanism, distributed pressing, impact-free unlocking, high reliability and no redundant objects or floating hooking objects on the elastic unfolding structure are achieved, the pressing and releasing mechanism is attached to the unfolding structure to be subjected to shaping design in the winding circumferential direction of the unfolding structure, and the design requirements for small envelope and light weight are met.