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43results about How to "Weight adjustment" patented technology

Urban road network travel time estimation method based on adaptive multi-task deep learning

The invention discloses an urban road network travel time estimation method based on adaptive multi-task deep learning and belongs to the technical field of intelligent transportation. Firstly, features affecting the travel time of a road segment are extracted, then a deep network formed by multiple feature learning layers is constructed with a noise reduction sparse self-encoder as a component, and the feature representation of input is learned layer by layer. Finally, a probability-based method is used to carry out modeling on the uncertainty of the travel time, a multi-task regression layeris constructed, an error from an observation value is outputted by a minimized model, and thus the model automatically adjusts the weight of each task. According to the method, an existing method hasthe defects that a shallow network is difficult to describe a complex non-linear travel time in an urban road network, the manual adjustment of the weight of a joint learning task and only data witha complete task tag can be used are overcome, the efficiency of travel time estimation is improved, and the method has an important practical significance in the estimation of the travel time of the urban road network.
Owner:SOUTHEAST UNIV

Large-sized adjustable container counterweight device

The invention relates to a large-sized adjustable container counterweight device comprising a base. A primary double-layer guide box with a sandwich structure and a plurality of secondary single-layer guide plates are arranged on the base, the secondary single-layer guide plates are at least partially accommodated in the sandwich structure in an adaptive way, the plurality of secondary single-layer guide plates are connected end to end so as to form an adjustable box body structure, and the base is also provided with double-stage oil cylinders matched with the primary double-layer guide box and the secondary single-layer guide plates. A container counterweight is employed to replace a traditional small counterweight block; a container counterweight filler can be sandy soil, can be obtained on site, and the manufacturing cost can be greatly reduced through replacing a traditional cast iron counterweight with the container counterweight; when the container counterweight is not in use, the sandy soil is removed, only a container needs to be transported, and thus the transportation is convenient and the cost is reduced; and a certain pressure can be also applied by a hydraulic structure so as to compact the sandy soil, so that uniformity of the sandy soil in the container counterweight is ensured.
Owner:XCMG CONSTR MACHINERY

Ground compacting device for construction

The invention discloses a ground tamping device for building construction, which includes a bearing platform. The left vertical plate and the right vertical plate are fixedly installed by welding vertically, the horizontal plate is fixedly installed on the top of the left vertical plate and the right vertical plate, and the electromagnet is fixedly installed on the bottom of the horizontal plate, and the vertical sliding type runs through the horizontal plate with a slide bar , the slide bar passes through the electromagnet, and the top of the slide bar is provided with a top plate; several slots are longitudinally opened in the stamping cylinder, and the slots are extended to the center of the stamping cylinder, and a weight-increasing steel plate is detachably inserted into the slot; the present invention The structure is ingenious and the operation is convenient. The elastic potential energy of the return spring and the accumulation of the gravitational potential energy of the stamping cylinder are realized through the adsorption of the electromagnet and the iron block. The separation of the electromagnet and the iron block realizes the tamping effect of the rammed earth plate on the ground, and the tamping action can be automatic. Complete, high degree of automation.
Owner:杨燕萍

Generative abstract generation method based on image-text fusion

The invention discloses a generative abstract generation method based on image-text fusion. The method comprises the following steps: 1) dividing a given text data set into a training set, a verification set and a test set, wherein each sample in the text data set is a triple (X, I, Y), X is a text, I is an image corresponding to the text X, and Y is an abstract of the text X; 2) performing entityfeature extraction on the images of the text data set, and expressing the extracted entity features as image feature vectors with the same dimension as the text; 3) training the generative abstract model by using the training set and the image feature vector corresponding to the training set; and 4) inputting a text and a corresponding image, generating an image feature vector of the image, and inputting the text and the image feature vector corresponding to the text into the trained generative abstract model to obtain an abstract corresponding to the text. According to the abstract generatedby the method, the weight of the entity in the text can be effectively adjusted, and the problem of unregistered words is relieved to a certain extent.
Owner:INST OF INFORMATION ENG CAS

Piston used for connection rod-free reciprocating-rotating movement converting device and equipment thereof

The invention provides a piston used for a connection rod-free reciprocating-rotating movement converting device. The piston is of a single-action piston; the other end opposite to the head of the piston is provided with an auxiliary guide part; the periphery surface of the auxiliary guide part is matched with an auxiliary runway of an organism; and a fit clearance between the auxiliary guide part and the auxiliary runway is less than that between the crown, after being provided with an oil ring and a gas ring, of the piston and the inner wall of an air cylinder. Preferably, the main body of the auxiliary guide part is a section of solid cylinder. Due to the adoption of the piston, the friction loss of reciprocating movement can be reduced effectively.
Owner:中清能(北京)科技有限公司

Billiard cue capable of adjusting weight, centre of gravity and length

The invention relates to sports equipment, in particular to a billiard cue capable of adjusting weight, centre of gravity and length. The billiard cue comprises a front-end hand rack stick and a rear-end handheld stick, wherein the tail part of the front-end hand rack stick is connected with a connecting rod; the end of the connecting rod close to the rear-end handheld stick is provided with external threads; corresponding internal threads are reserved in an inner hole of the front-end hand rack stick; and a plurality of circular counter weights are sleeved on the connecting rod. Compared with the prior art, the billiard cue has the advantages of simple process, convenient use, easy assembly, firmness, impact resistance; and the weight, the centre of gravity and the length of the billiard cue can be adjusted, so the billiard cue is suitable for different people.
Owner:饶涛

Remote-controlled water collecting apparatus used for river or lake

The present invention discloses a remote-controlled water collecting apparatus used for a river or a lake, and relates to the field of water quality monitoring. The apparatus comprises a remote-controlled boat and multiple sampling bottles. A supporting seat is disposed on the remote-controlled boat, a rotating shaft is rotatably connected on the supporting seat, and the remote-controlled boat isprovided with a first motor that drives the rotating shaft to rotate. Multiple winches of a quantity the same as that of the sampling bottles are disposed on the rotating shaft at intervals, and diameters of the multiple winches gradually increase. A twisted rope is enwound on the winchx, and the remote-controlled boat is provided with a pulley that is crossed by the twisted rope. The sampling bottle is provided with a bottle cap, and the twisted rope is fixed in a central position of the bottle cap. The bottle cap is disposed with multiple water inlets, and a switching part for controlling onand off of the water inlets is disposed on a lower end face of the bottle cap. The present invention has the following advantages and effects: multiple winches with different diameters are disposed to control multiple sampling bottles to submerge into water of different depths, so that water samples of different depths are simultaneously collected, thereby achieving an effect of facilitating collecting water samples of different depths.
Owner:深圳市华保科技有限公司

Convenient waist training device for free combat

The invention discloses a convenient waist training device for free combat, which comprises a base plate, a fixed shell, a stepping motor, a rotating shaft, a gear, a rack board, a chute, a trigger plate, a first travel switch, a second travel switch, a water storage chamber, a piston, a guide rod, a buffer pad and a water storage box, a first avoiding hole, a fixed ring, a second avoiding hole, asupport frame, a first auxiliary roller, a second auxiliary roller, a third auxiliary roller, a pull rope, a belt, a support seat, a hanger, chains, and a sandbag. First, through the adjustable waistload-bearing design, the convenient waist training device for free combat cannot only improve the training staff's waist training, but also according to different training level or physical conditionachieve the waist load intensity adjustment, and expand the practicality of the training. Then through the sandbag cooperation effect, the convenient waist training device for free combat can achievethe waist load-bearing training of the training staff, and also be convenient for the training staff to carry out boxing training, and finally achieve good popularization and application.
Owner:国武时代国际文化传媒(北京)有限公司

Vibration system for vehicle seat

The invention relates to a vibration system for a vehicle seat, and the system comprises two frames, wherein the frames are connected through two connected cross parts which can rotate around the rotation axis, and the vertical distance between the corss parts can be changed; a main spring is arranged between one frame and one cross part, the main spring is hinged to the cross part through the first end and is hinged to a lever through the second end and the first hinged point, and the lever is connected with a frame through the rotation axis; according to the lever, a first lever arm is arranged between a first hinged point of a first force direction main spring of the main spring on the lever and the rotation axis of the lever, and the first lever arm under the small stress of the main spring is greater than the same under the high stress of the main spring; an energy storage is arranged between the lever and a frame, the energy content of the engergy storage relates to the main spring stress, and the energy content under the high stress of the main spring is less than the energy content under the low stress of the main spring.
Owner:GEBR ISRINGHAUSEN GMBH & CO KG

Traditional Chinese medicine for treating impotence and preparation method thereof

The invention belongs to the field of traditional Chinese medicines, particularly relates to a traditional Chinese medicine for treating impotence and a preparation method thereof. The traditional Chinese medicine mainly comprises hartshorn, epimedium, bidentate achyranthes, ginseng, astragalus root, Chinese angelica root and lyophilized royal jelly powder, and is prepared through the steps of processing and refining. The above traditional Chinese medicines are combined and complement one another, so that the efficacy of warming and invigorating yang is achieved, the traditional Chinese medicine provided by the invention has obvious effects of warming and invigorating yang, and has the advantages of good clinical treating effects, quickness in taking effect, short course of treatment and no obvious toxic or side effects, and is a good medicine for treating the impotence .
Owner:SHANDONG ZHONGDA PHARMA

Pavement flattening device for road construction

PendingCN112663446AImprove adjustability and applicabilityImprove the use effectRoads maintainenceStructural engineeringRoad construction
The invention belongs to the technical field of pavement construction, and discloses a pavement flattening device for road construction. The device comprises a rack assembly, a grinding wheel assembly is arranged at the bottom end of the rack assembly, a balance weight assembly is arranged on the inner side of the grinding wheel assembly, the rack assembly comprises a flattening rack and a transmission roller, a first assembling frame is hinged to the bottom side of the flattening rack, and a first damping base is fixedly installed on the side face of the first assembling frame; and two second assembling frames are symmetrically and fixedly installed on the side, away from the first assembling frame, of the bottom end of the flattening rack, second damping seats are fixedly installed on the side faces of the second assembling frames, and the second damping seats are rotationally connected with rotating shafts. According to the pavement flattening device, the weight of the flattening grinding wheel and the electrifying amount of the electromagnetic eccentric rod can be conveniently adjusted according to the pavement flattening use requirements, the adjustability and the applicability of the pavement flattening device are improved, impurities attached to the flattening grinding wheel can be removed, the pavement flattening device can meet the different road flattening use requirements, and the pavement flattening use effect can be improved.
Owner:李鹏涛

Movable road flag

ActiveCN106013931ATaking into account the convenience of movingWeight adjustmentTowersFlags/bannersEngineering
The invention provides a movable road flag which comprises a base, two supporting barrels arranged on the base, a connecting piece connected between the two supporting barrels, flag rods inserted into the supporting barrels and flags arranged on the flag rods. The base comprises a hollow base body and sand contained in the hollow base body. The hollow base body is provided with a sand inlet and a sand outlet. A plug body is arranged at the sand outlet. The two supporting barrels are oppositely arranged. Each supporting barrel comprises a vertical section and an inclined section which is inclined and extended from the top end of the vertical section to be away from the other supporting barrel. The connecting piece comprises two positioning pieces fixing the supporting barrels and a screw connected between the two positioning pieces. Each positioning piece comprises a sleeve body where the corresponding supporting barrel penetrates, and an extending portion extending outwards from one side of the sleeve body. The screw penetrates through the extending portions of the two positioning pieces and is fixed with a nut. According to the movable road flag, the sand amount in the base can be controlled according to practical requirements, the weight of the base is adjusted, and therefore both moving convenient and using stability are achieved.
Owner:徐州百草园文教办公用品有限公司

Rotating disc type multi-scale metering device

InactiveCN104340386AWeight adjustmentImprove the efficiency of weighing measurementSolid materialRotating discConstant speed
The invention discloses a rotating disc type multi-scale metering device which is characterized by comprising a storage device, wherein a rotating shaft driving the storage device to rotate is arranged at the center of the storage device, a plurality of scale metering devices are arranged below the storage device in the circumferential direction of the rotating shaft, and each scale metering device comprises a vibration feeder, a tipping bucket type material immersing device, a balance scale, a filling hopper and a controller; while the rotating shaft rotates at a constant speed, the plurality of scale metering devices can simultaneously perform weighing and metering, and each container on a sub-packaging machine is supplied with materials, so that the metering and sub-packaging speed is increased, and the weighing and metering efficiency is improved; and besides, a lever mode is adopted as a weighing mode, one-time metering weight of the materials in the containers is adjusted by adjusting the weight of weighing weights.
Owner:湖南双创部落信息咨询服务有限责任公司

Automatic grading and screening equipment for fruit grains

The invention relates to automatic grading and screening equipment for fruit grains. The automatic grading and screening equipment for the fruit grains comprises a bottom plate, conveyors, connecting supports, containing mechanisms, vertical plates, screening mechanisms and a collecting frame, wherein the conveyors are distributed above the bottom plate, the conveyors are installed on the top of the bottom plate through supports arranged at the bottoms of the conveyors, the connecting supports are evenly installed on the conveyors correspondingly, and the top of each connecting support is provided with one containing mechanism, the vertical plates are located in the conveyors and installed on the top of the bottom plate, and the screening mechanisms are evenly installed on the tops of the vertical plates in the length direction of the vertical plates. According to the automatic grading and screening equipment for the fruit grains, the following problems existing during existing fruit screening that the position of fruits cannot be positioned, the fruits have the hidden danger of sliding off, a rotating plate for placing the fruits cannot rotate by a large angle, the phenomenon that the fruits are clamped on the rotating plate is caused, and the fruit screening weight cannot be rapidly adjusted can be solved.
Owner:江西奕方农业科技有限公司 +1

Tennis racket

The invention discloses a tennis racket which comprises a racket frame part, a connecting part and a racket handle part. One end of the connecting part is connected with the racket frame part, and the other end of the connecting part is connected with the racket handle part; the racket frame part is provided with a ball net and a plurality of containing grooves, the containing grooves are provided with weight adjusting clamping blocks, and the weight adjusting clamping blocks are clamped in the containing grooves. The end part of the racket handle part is provided with an accommodating deep hole, the accommodating deep hole is provided with a magnetic sleeve, and a plurality of counterweight iron balls are magnetically adsorbed in the magnetic sleeve. The tennis racket has the beneficial effect that the weight can be adjusted to facilitate the use of different people.
Owner:WUXI VOCATIONAL & TECHN COLLEGE

Standardized customer cultivation method and device

The invention discloses a standardized customer cultivation method and device, and relates to the technical field of physical fitness cultivation training. In order to automatically and scientifically monitor the cultivation content according to the physique of each child; the method comprises the following steps that body indexes of the height and the weight of a customer child are counted, and a corresponding physical training cultivation plan is made; the children perform physical training through training equipment according to the physical training and training plan; and the full-time guardians perform field observation on the first 1-3 cultivation items of the children. The device comprises a training device which comprises a machine body, the machine body is composed of a strength cultivation part, a jumping strength cultivation part, a durability cultivation part and an arm strength cultivation part, and the strength cultivation part comprises a sliding groove formed in the outer wall of the opposite side of the machine body and a liquid box detachably installed on the inner wall of the top of the machine body. According to the physical fitness condition of each child, the cultivation plan is modified, the standardized physical fitness cultivation method matched with each child is formulated, the method is more scientific and rigorous, and customer loss is prevented.
Owner:北京基智科技有限公司

Pie driving device for construction site pipe pile

The invention relates to the technical field of pipe piles, and discloses a pile driving device for a construction site pipe pile. The pile driving device comprises a pipe pile body, wherein fixing mechanisms are arranged at the left end and the right end of the pipe pile body, fixing seats are arranged on the sides, away from each other, of the two fixing mechanisms, display screens are arrangedon the front surfaces of the fixing seats, a fixing frame is arranged on the back surface of the pipe pile body, the fixing frame is vertically arranged, a pile driving mechanism is arranged at the top of the fixing frame, a second connecting block is arranged on the back surface of the bottom of the pipe pile body, and a protection mechanism is arranged above the second connecting block. According to the pile driving device for the construction site pipe pile, first hydraulic cylinders are started, the first hydraulic cylinders can drive push plates and fixing rings to get close to the pipe pile body to support and fix the pipe pile body so that the pipe pile body can be effectively limited and supported, the phenomenon that the pipe pile body is driven out of position and deviates is avoided, and the pile driving effect on the pipe pile body is guaranteed, so that the pile driving device is high in pile driving efficiency and fast in speed.
Owner:浙江意力管业科技有限公司

Golf club allowing replacing of angle-adjusting pipe fitting

The invention relates to a golf club allowing replacing of an angle-adjusting pipe fitting. The golf club comprises a ball head body, a club body, a club body joint, the angle-adjusting pipe fitting, a screwed part and a fixed part, wherein an installation hole is formed in the ball head body, the club body joint adheres to the bottom end of the club body, a positioning hole is formed in the angle-adjusting pipe fitting, the angle-adjusting pipe fitting covers the club body joint, the angle-adjusting pipe fitting is assembled in the installation hole, the screwed part is fixedly connected with the angle-adjusting pipe fitting, the club body joint and the club body, and the fixed part is connected with the bottom end of the installation hole to abut against the bottom end of the angle-adjusting pipe fitting; various angle-adjusting pipe fittings of different specifications are designed, and imaginary lines of hole centers of positioning holes of the angle-adjusting pipe fittings are designed to be overlapped with imaginary lines of pipe body centers of the angle-adjusting pipe fittings, or certain angles are formed by the imaginary lines of the hole centers of the positioning holes of the angle-adjusting pipe fittings and the imaginary lines of the pipe body centers of the angle-adjusting pipe fittings, so that bottom angles and surface guiding angles can be adjusted through replacing of the angle-adjusting pipe fittings.
Owner:SUPER WAY TECH +2

Urban road network travel time estimation method based on adaptive multi-task deep learning

The invention discloses an urban road network travel time estimation method based on adaptive multi-task deep learning and belongs to the technical field of intelligent transportation. Firstly, features affecting the travel time of a road segment are extracted, then a deep network formed by multiple feature learning layers is constructed with a noise reduction sparse self-encoder as a component, and the feature representation of input is learned layer by layer. Finally, a probability-based method is used to carry out modeling on the uncertainty of the travel time, a multi-task regression layeris constructed, an error from an observation value is outputted by a minimized model, and thus the model automatically adjusts the weight of each task. According to the method, an existing method hasthe defects that a shallow network is difficult to describe a complex non-linear travel time in an urban road network, the manual adjustment of the weight of a joint learning task and only data witha complete task tag can be used are overcome, the efficiency of travel time estimation is improved, and the method has an important practical significance in the estimation of the travel time of the urban road network.
Owner:SOUTHEAST UNIV

Multifunctional traction shoe

The invention discloses a multifunctional traction shoe. The multifunctional traction shoe comprises a traction shoe, a fourth weight balancing block and an opening device control switch, wherein a receiving cavity is formed in the bottom of the traction shoe; a weight balancing device is arranged in the receiving cavity; a first weight balancing block is arranged in the weight balancing device; one end of the first weight balancing block is connected with a second weight balancing block; a concave structure is mounted at one end of the second weight balancing block; and a convex structure ispenetrated in the concave structure. The multifunctional traction shoe is provided with the receiving cavity; when the traction shoe is used, the weight balancing device can be placed into the receiving cavity and is used for balancing weight of the traction shoe, so that the exercise amount can be adjusted according to the weight needed when people practically do exercise; the traction shoe is suitable for different people; the requirement of each user on the weight can be met; the user can do exercise more conveniently; the cumbersome process of needing to carry items so as to increase the weight is avoided.
Owner:FUJIAN GUANGLIN SHOES CO LTD

Novel rapid fishing sinker

InactiveCN105831035ATightly rolledLow churning effectOther angling devicesEngineeringFishing
A new type of fast lead pendant for fishing, comprising: an inner core body with a hollow channel running through its body; a metal outer skin layer used to wrap around the outer surface of the inner core body, and the metal outer skin layer is manually rolled to the inner core body The main body of the fishing weight is formed on the outer surface of the fishing weight body, and the outer surface of the main body of the fishing weight is a smooth surface structure. In the present invention, the metal outer skin layer is rolled on the inner core body. The metal outer skin layer is manually rolled, and the metal skin is rolled tightly without mechanical indentation. Adjust the weight of the fishing weight flexibly. The invention adopts the plastic hollow to replace the rubber column in the prior art, because the wear resistance of the plastic hollow is greater than that of the rubber column, which further prolongs the service life of the present invention. The invention is flexible, convenient and simple to use. In addition, it also has the advantages of small water entry and exit resistance, and can minimize the impact on water body agitation.
Owner:董磊

Granular crop rapid bagging and packaging equipment

The invention discloses granular crop rapid bagging and packaging equipment. The granular crop rapid bagging and packaging equipment comprises a vehicle body; a fixing plate is fixedly connected to the upper wall of the vehicle body; a conveying mechanism is arranged on the side wall of the fixing plate; the conveying mechanism comprises a conveying cylinder fixedly connected to the side wall of the fixing plate; a motor is fixedly connected to the upper wall of the conveying cylinder; a rotating shaft is fixedly connected to an output shaft of the motor; and a spiral blade is fixedly connected to the side wall of the rotating shaft. According to the granular crop rapid bagging and packaging equipment, manual bagging is not needed, the labor intensity of people is greatly reduced, the bagging efficiency is improved, manual bag supporting is not needed, bagging can be achieved only by one person, manpower consumption is reduced, quantitative bagging can also be achieved, errors caused by manual bagging are avoided, and therefore, the bagging effect of the device is improved; and meanwhile, the weight of the crops bagged each time can be adjusted according to the requirements of a user, so that the application range of the device is expanded; and moreover, the conveying efficiency of the crops can be improved, and then the working efficiency of the device is improved.
Owner:马国建

Front frame for resonance crusher with skewed-arranged large beam and resonance crusher

The invention relates to a front frame for a resonance crusher with a skewed-arranged large beam and a resonance crusher. The front frame comprises a front vertical plate, wherein an oil cylinder mounting supporting seat is fixedly connected to the other side of the front surface of the front vertical plate, and the oil cylinder mounting supporting seat is used for mounting a lifting oil cylinder of a crushing system counterweight; a counterweight left baffle and a counterweight right baffle are arranged at the lower end of the oil cylinder mounting supporting seat, and a second front wheel frame mounting plate is arranged under the counterweight left baffle and the counterweight right baffle; a second front wheel frame mounting hole is formed in the lower part of the second front wheel frame mounting plate, and the axis of the second front wheel frame mounting hole is higher than the axis of a first front wheel axle mounting flange hole; and a second front wheel frame is mounted in the second front wheel frame mounting hole, and a plurality of solid front wheels are mounted on the second front wheel frame. The front frame improves the coordination and reliability of the entire resonance crusher, provides sufficient support for the resonance crusher and balances the overall counter weight of the resonance crusher.
Owner:NANFANG HIGH TECH ENG TECH CO LTD +1

A movable road flag

The invention provides a movable road flag which comprises a base, two supporting barrels arranged on the base, a connecting piece connected between the two supporting barrels, flag rods inserted into the supporting barrels and flags arranged on the flag rods. The base comprises a hollow base body and sand contained in the hollow base body. The hollow base body is provided with a sand inlet and a sand outlet. A plug body is arranged at the sand outlet. The two supporting barrels are oppositely arranged. Each supporting barrel comprises a vertical section and an inclined section which is inclined and extended from the top end of the vertical section to be away from the other supporting barrel. The connecting piece comprises two positioning pieces fixing the supporting barrels and a screw connected between the two positioning pieces. Each positioning piece comprises a sleeve body where the corresponding supporting barrel penetrates, and an extending portion extending outwards from one side of the sleeve body. The screw penetrates through the extending portions of the two positioning pieces and is fixed with a nut. According to the movable road flag, the sand amount in the base can be controlled according to practical requirements, the weight of the base is adjusted, and therefore both moving convenient and using stability are achieved.
Owner:徐州百草园文教办公用品有限公司

Piston used for connection rod-free reciprocating-rotating movement converting device and equipment thereof

The invention provides a piston used for a connection rod-free reciprocating-rotating movement converting device. The piston is a single-action piston; the other end opposite to the head of the piston is provided with an auxiliary guide part. The piston head is composed of a top part, a support part and a bottom part. The top part includes a crown part and a shirt part. The support part is connected between the crown part bottom surface and the bottom part. The bottom part has a first arc opening which opens downward. The top part of the auxiliary guide part has a second arc opening which opens upward. The first arc opening and the second arc opening are opposite to form an integrate hole. The periphery surface of the skirt part is matched with an inner wall surface of a cylinder, and the gap is less than that between the crown part and the cylinder in which a gas ring and an oil ring are added on the crown part. The periphery surface of the auxiliary guide part is matched with an auxiliary runway of a machine body, and a fit gap between the auxiliary guide part and the auxiliary runway is less than that between the crown, after being provided with an oil ring and a gas ring, of the piston and the inner wall of the cylinder. The adoption of the above piston can effectively reduce the friction loss of reciprocating movement. The invention can simultaneously provide an internal-combustion engine and a compressor using the above piston.
Owner:中清能(北京)科技有限公司
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