52results about How to "Avoid air" patented technology

An oil supply system for a vehicle includes: a mechanical oil pump driven by an engine; an electric oil pump driven by an electric motor; a hydraulic pressure control circuit supplied with oil from the mechanical oil pump and the electric oil pump through an oil discharge passage for the mechanical oil pump and an oil discharge passage for the electric oil pump, which are connected to each other; a lubrication/cooling oil passage that is supplied with the oil from the hydraulic pressure control circuit; and a communication passage that provides communication between the lubrication/cooling oil passage and the mechanical oil pump. With this oil supply system, it is possible to prevent the electric oil pump from causing air-sucking noise, for example, in the motor-power cruise mode, and to improve the rising characteristics of the hydraulic pressure produced by the mechanical oil pump during startup of the engine.

An air support article of air inflatable furniture comprises an air inflation device. The air inflation device provides an openable and closable opening into the sack that forms the majority of the article. The air inflation device comprises at least one pliable flap attached to the sack. The flap acts as a partial check valve that allows the article to be inflated simply by rapidly opening and closing the opening.

The invention relates to a double-way unintermittent infusion set and belongs to a medical infusion set. The double-way unintermittent infusion set comprises bottle plug puncture units, an air inlet pipe air filter, a dropper and a needle which are sequentially connected through a hose, and a flow adjuster is sleeved on the hose. The double-way unintermittent infusion set is characterized in that the infusion set further comprises a tee joint, two branch tubes of the tee joint are connected with two infusion tubes, each infusion tube is provided with one bottle plug puncture unit and a one-way valve. The double-way unintermittent infusion set has the advantages that when a patient is subjected to infusion of multiple bottles of liquor medicines continuously, infusion medicine bottles can be automatically switched, unintermittent infusion is realized, burden of medical staff is alleviated, infusion efficiency is improved, and the problems of waste of liquor medicine, air entering the tubes and blood return and the like are avoided. The double-way unintermittent infusion set can be widely used for one-off infusion of various patients.

An active grille shutter system having a frame with a first side facing a vehicle exterior and a second side opposite the first side that generally faces a vehicle engine compartment. The frame also includes at least two opposing cross-sectional curvilinear sides that form part of a curvilinear opening to allow air to selectively pass through the frame from the first side to the second side. Multiple rotatable vanes are placed within the curvilinear opening in order to selectively block airflow through the frame member. During operation of the active grille shutter system the vanes do not extend beyond the perimeter of the curvilinear opening of the frame when in the open and closed position.

The invention discloses a flow choking strip for a printed circuit board, which is arranged at the edges of the two sides of a printed circuit board core material. The flow choking strip comprises a plurality of flow choking blocks with the cross section being cross-shaped, wherein the plurality of flow choking blocks form a bar-shaped flow choking strip through arrangement and combination, and the flow choking blocks are provided with diversion clearances with the same size therebetween. As adoption of the technical scheme, the flow choking strip provided by the invention for the printed circuit board avoids problems that core materials of traditional bar-shaped flow choking strips, wall-shaped flow choking strips, dot-shaped flow choking strips are low in rigidity, and that the air or resin overflow speed is too high or too low, and enables an empty area of the board side of the printed circuit board core material to be uniformly dispersed without large continuous empty areas, thereby obviously improving the rigidity of the core material, and significantly reducing board damage defects of the core material in the processing and manufacturing process.

A fluid tank includes a tank main body that contains a fluid and a bubble removing device that is provided to an inside of the tank main body and removes bubbles contained in the fluid. The tank main body includes a partition that partitions the inside of the tank main body to at least two sides and a delivery port through which the fluid is fed to an outside. The bubble removing device has an outflow port through which the fluid from which the bubbles have been removed flows to the inside of the tank main body and a bubble exhaust port through which the bubbles which have been removed are discharged to the inside of the tank main body. The delivery port is provided adjacent to the outflow port relative to the partition. The partition partitions the inside of the tank main body to a side in which the outflow port and the delivery port are provided and a side of the bubble exhaust port.

The invention discloses a preparation method of methyl-3-pentenoate. According to the invention, gamma-valerolactone and methanol which are adopted as initial raw materials undergo ester change and a dehydration reaction under the action of a catalyst to obtain methyl-3-pentenoate, and simultaneously the obtained methyl-3-pentenoate is separated through distillation. The method provided by the invention has the advantages of high reaction selectivity, simple technology, simple operation, and environmental protection, and the highest yield and the highest selectivity of the methyl-3-pentenoate reach 95% and 98% respectively.

A downhole cable termination apparatus is provided for terminating a cable that is to extend downhole from a tubing hanger to electrical equipment. The apparatus includes: a first seal for sealing the apparatus uphole of the first seal from the downhole environment; a second seal for sealing the apparatus uphole of the second seal from the downhole environment; and a sleeve arranged to extend around the cable and to be attached to the cable, the sleeve being for providing a radially outwardly facing engagement portion for the first seal and a radially inwardly facing engagement portion for the second seal, the sleeve having two parts, a first part being arranged to be attached to the cable and providing the radially outwardly facing engagement portion, and a second part providing the radially inwardly facing engagement portion and provided separately from the first part, and the sleeve being arranged such that when the apparatus is assembled on the cable the second part is joined to the first part.

A rivering filtration system for a power saw machine includes a filtration tray having a filtration cavity for collecting operation fluid after the operation fluid is delivered onto the cutting blade, and a fluid collecting tray located underneath the filtration tray, wherein the fluid collecting tray has first and second cavities. The filtration tray provides a first filtration stage for filtrating the visible residual particles out from the operation fluid. The fluid collecting tray provides a second filtration stage that the operation fluid is slowly filled in the first cavity from the filtration cavity to ensure slurry residual particles in the operation fluid being deposited at the first cavity, and a third filtration stage that the operation fluid is slowly filled in the second cavity from the first cavity to ensure the slurry residual particles being filtrated out of the operation fluid.

A suspension system that restricts side-to-side airflow between air springs on opposite sides of a vehicle or trailer. In one embodiment, active airflow discs in suspension ports of a valve operate in two modes; restrictive and non-restrictive. A disc attains a non-restrictive mode when air is exhausted from an air spring. A disc attains a restrictive mode when air is injected into the suspension port from the valve toward an air spring. Airflow discs in opposing suspension ports both attain a non-restrictive state to rapidly dump air from the springs and lower vehicle ride height. In another embodiment, a pneumatic circuit includes one-way check valves, in fluid communication with opposing air springs, aligned to restrict airflow between the opposing springs under uneven loading conditions. A pair of electronic solenoids acts in concert with the check valves to selectively inflate or deflate the air springs.

The present invention relates to an andrographolide soft capsule and its production method. Every soft capsule contains 10-300 mg of andrographolide, and contains beeswax and medicinal auxiliary material. Said medicinal auxiliary material includes diluting agent, suspension adjuvant and defoaming agent, and the interior of said capsule shell, contains (by weight ratio) 10 portions of gelatin and 4.0-5.5 portions of glycerine. Its production process includes the following steps: adding water to dissolve gelatin, adding glycerine and proper quantity of preservative, vacuum deaerating, adding suspension adjuvant into vegetable oil, mixing andrographolide, diluting agent and defoaming agent uniformly, die-pressing to obtain said invented soft capsule. Its quality is stable, administration is convenient and its effective components can be quickly resolved out.

The invention belongs to the technical field of metal material preparation, and relates to a multi-metal ladder-type compound casting device and method. The multi-metal ladder-type compound casting device comprises a combined ladder-type crystallizer, a ladder cooling plate, hot tops and dummy ingots, wherein the combined ladder-type crystallizer, the ladder cooling plate, the hot tops and the dummy ingots correspond to one another mutually. The combined ladder-type crystallizer is composed of an initial cooling water tank, a plurality of side surface cooling water tanks and a terminal coolingwater tank from top to bottom in a combined ladder-type mode. The initial cooling water tank, the multiple side surface cooling water tanks and the terminal cooling water tank are connected with thehot tops correspondingly. One end of the ladder cooling plate is correspondingly connected with the initial cooling water tank, the multiple side surface cooling water tanks and the terminal cooling water tank. The other end of the ladder cooling plate is connected with the corresponding hot top. The combined ladder-type crystallizer is divided into a plurality of melt cavities by the ladder cooling plate. Each dummy ingot is mounted under the corresponding melt cavity. Each melt cavity is provided with a shunt plate. The whole melt cavities are distributed in a ladder-type mode in the vertical direction. According to the casting method, casting forming of multi-layer metal can be achieved once, and the problems that a traditional technology is low in production rate and poor in interfacequality are solved.

The invention belongs to the technical field of aquatic product breeding, and particularly relates to a fish carcass collection device for aquatic product breeding. Aiming at the existing problem thatfish carcasses are not processed in time, leading to the proliferation of bacteria and the increase of the probability of water pollution, the scheme is proposed as follows. The device comprises a hull, wherein a water pump is fixedly installed in the middle of one end of the outer wall of the top end of the hull through a groove frame, and a support column is installed on one side of one end ofthe outer wall of the top end of the hull through bolts. According to the device, through the cooperation of the water pump and spiral propelling blades, fish carcasses in a bucket are transported toa three-way pipe, and are filtered and dropped into a receiving box, a water filter and an ultraviolet disinfection lamp are arranged inside the receiving box to filter and disinfect the fish carcasses, and an electric push rod is retracted, so that an arc-shaped hoe pushes the fish carcasses to a high temperature crushing box, the fish carcasses are repeatedly crushed in the high temperature environment and pushed to the inner part of the receiving box through a crushing motor, crushing blades and a pushing plate, and the problem that the fish carcasses pollute water and air is avoided.

A headpiece is provided for use in association with at least one hearing cap. The headpiece comprising a first portion, adapted to, when a user wears a hearing cap, be positioned between a sealing ring of the hearing cap and a portion of the user's head circumscribing an ear, and a second portion essentially circumscribed by the first portion, the first portion comprising a relatively air tight material forming a sealing ring in the headpiece, and the second portion being formed of one or more relatively air permeable materials allowing air to move between the ear and an inner volume of the hearing cap when the user wears the hearing cap.

The invention relates to a method for reducing pentadiene petroleum resin color number. The method is characterized in that C5 olefin fraction obtained by a C5 separation device is used as a raw material, the weight of pentadiene concentrate is 60-75 percent; silicon tetrachloride is used as a drying agent, solvents and aluminum chloride anhydrous serving as a catalyst are added to control the dropwise adding speed, and the dropwise adding temperature is less than 30 DEG C, the reaction temperature is 0-80 DEG C and the reaction time is 0.5-10h, so that pentadiene petroleum is prepared. According to the method, the using amount of the synthetic pentadiene petroleum resin catalyst and the resin color number are successfully reduced, and the problem that the color needs to be deepened when high-grade pentadiene petroleum resin is produced is solved, so that the quality of the pentadiene petroleum resin is stable, the process is controlled, and multi-grade requirement of clients is met, and the economic benefit is improved.

A breathing apparatus structure with a two-stage reduced-pressure spare air bottle head is provided, which includes an air bottle head mounted at an outlet end of a spare air bottle and an inhalation mouthpiece, so as to provide an air at a suitable pressure to a diver or drowning person for emergency use. The air bottle head is sequentially provided with an air bottle head switch, a high pressure reducing valve, and a low-pressure valve connected in series on an air passage thereof. Thus, an air leakage of a high-pressure air in the air bottle can be avoided when the high-pressure air is not used, and the service life of elastic elements of the low-pressure valve can also be prolonge

The invention relates to the technical field of stage lifting devices, and particularly discloses an activity square stage truss. The activity square stage truss comprises a first truss body, a secondtruss body and a third truss body; the third truss body is connected with the first truss body and the second truss body, rockers are hinged to the first truss body and the second truss body correspondingly, a transverse plate is arranged on the lower portion of the third truss body, a first sliding block is hinged to one end of each rocker, a second sliding block is hinged to the other end of each rocker, and the first sliding blocks are horizontally and slidably connected to the side wall of the transverse plate; hydraulic cylinders are mounted on the two sides of the transverse plate correspondingly, a horizontal plate is connected to the output ends of the hydraulic cylinders, and the second sliding blocks are horizontally and slidably connected to the side wall of the horizontal plate; and a cylinder body is arranged on the lower portion of the transverse plate, a piston is slidably connected into the cylinder body, a telescopic rod is fixedly connected to the piston and connected to the transverse plate, the cylinder body communicates with an air inlet pipe and an air outlet pipe, the air outlet pipe is connected with an elastic airbag, and the elastic airbag is mounted on the third truss body. According to the activity square stage truss, the safety during mounting stage apparatus in mid-air by workers can be ensured, and fall damage of personnel is avoided.

A nonwoven ceiling tile or wall panel with noise absorption properties utilizes unique acoustical absorbing fibers. During manufacturing, binder fibers melt between interstitial spaces to fill spaces and create impedance to air flow and sound flow through the fibers. Various shapes and/or sizes of fibers may also be utilized to further impedance of air and sound through the ceiling tile or panel. The ceiling tiles and panels are made from 100% organic fibers that are either virgin or recycled material. The material is structurally self-supporting eliminating need for structural additives or structural design features. Fire and smoke retardants are incorporated into the fibers. Antimicrobial and anti-stain additives may also be used in the fibers. The material is 100% polyester fibers (PET and PETG). The material is printable using sublistatic printing or transfer printing process. The ceiling tiles and panels are light weight and moldable in a wide range of designs.