511 results about "Impact pressure" patented technology

A method and integrated golf club apparatus for directly measuring physical parameters of the golf club head motional acceleration swing forces, golf club head face, golf ball impact forces, and subsequent calculations of other metrics useful to a golfer's understanding of the effectiveness of his or her golf swing and impact result in totality. The physical parameters that are directly measured include three dimensional motion force vectors of club head prior to, during and after impact and full impact pressure force profiles across the golf clubface with respect to time. The sensors are connected to electronics which condition, record and store the time varying sensors information electronically, then process and translate the information into one of several forms for delivery to a human interface function.

Methods and apparatus are provided for reducing surge pressure while running casing into a wellbore. The apparatus includes a running string for running casing having a diverter tool therein. The diverter tool has one or more bypass ports between its upper and lower end which are normally closed. In operation, the diverter tool is automatically cycled between the open and closed positions of the bypass ports during a casing running operation. A pressure event inside the diverter tool deactivates the cyclic opening and closing function of the bypass port.

The invention discloses a method for preventing and controlling rockburst by an artificial space defect body. Firstly, one or more pressure relief roadways are excavated in the high stress dangerous area of ​​rockburst, and three boreholes are drilled in the head of the pressure relief roadway. The boreholes are drilled along the centerline of the roadway, and the holes on both sides are drilled obliquely forward at an angle of 30° based on the centerline of the roadway, so that the coal seam can be relieved by deep hole blasting; Drilling, and finally blasting from the head of the roadway to the back of the roadway. The invention changes the stress distribution by creating a large defect space in the high-stress coal body, the stress is far away from the roadway, the coal body around the roadway is destroyed, the energy is greatly released, and the risk of impact is fundamentally reduced.

The present invention discloses pulse type shock reinforced in-line mixing and injecting forming method and apparatus. Pulse type shock is introduced into the whole in-line mixing and injecting forming process of producing fiber reinforced composite polymer material. The apparatus includes one plasticizing extruder with three screws arranged in one line and including one main screw capable of generating periodical axial pulse shock, one buffering storing device, and one pulse type shock pressure reinforcing plunger injecting device. The present invention can lower melt viscosity, raise mixing and homogenizing effect, raise the compatibility between fiber and polymer, lower the processing power consumption and raise product quality.

A die cushion apparatus of a press machine in which a discharge opening of a fluid hydraulic pump/motor is directly connected to a pressure chamber on a cushion pressure production side of a fluid hydraulic cylinder and the torque of a rotating shaft of the fluid hydraulic pump/motor is controlled by an electric motor to control a pressure (die cushion pressure) of the pressure chamber on the cushion pressure production side. It is therefore possible to control the die cushion pressure with excellent responsiveness with respect to a die cushion pressure command and prevent occurrence of a surge pressure. The die cushion apparatus also has excellent energy efficiency since energy required for a die cushioning action that a cushion pad receives when effecting die cushioning of a press machine is regenerated as electrical energy through the fluid hydraulic cylinder, fluid hydraulic pump/motor, and electric motor.

An ultrasonically pulsating high-pressure fluid jet coupled with a suction system serve as a tissue harvesting device. The pulsated fluid jet disrupts tissue, permitting both harvesting of cells for therapeutic delivery, and as a surgical dissector and aspirator, for liposuction, soft tissue dissection, etc. The jet is delivered to the target tissue through a cannula, coupled to an aspiration system. An ultrasonically actuated rod vibrates within the cannula engaging a nozzle, disrupting the fluid jet into droplets, permitting tuning of the jet to the resonant frequencies and impact pressures necessary to dissociate the target tissue. A suction recovery system may be separated or integrally formed with the fluid jet cannula, and is linked by a closed tubing system appropriate for sterilization and subsequent delivery of the harvested cells/tissues with or without growth factor or matrix addition for human re-implantation or for in vitro expansion for later re-implantation.

A close formation flight positioning system uses only air data measurements without a data link. The wake vortex of a lead aircraft generates horizontal, vertical and lateral induced velocities that vary with horizontal, vertical and lateral position from its wing. Two or more laterally or vertically separated air data sensors on a follower aircraft measure impact pressure, angle of attack and angle of sideslip, which are converted to horizontal, vertical and lateral velocity components. By comparing these velocity component measurements, using the distance between the sensors on the follower aircraft and the wing span of the lead aircraft, the distance from the follower to the lead aircraft can be determined. If weight, speed and altitude of the lead aircraft are known, then two sensors on the follower aircraft are sufficient to determine relative positions. If those conditions are not known, then three sensors on the follower aircraft are needed.

In a motor drive injection unit and a motor drive injection method, which can obtain an injection speed suitable for a molding material having fast solidifying speed as well as can securely carry out pressure keeping for a predetermined period of time while making a position of an injection piston unmovable after injection and filling are completed, a molding material in a cylinder is injected into a metal mold by converting a rotational motion of an electric servo motor into a reciprocating motion of an injection piston in the cylinder through a plunger with a ball screw, a surge pressure control means is provided for placing the injection piston in the cylinder in an unmovable state when at least a predetermined amount of a load is applied to the injection piston by the molding material in the cylinder, the surge pressure control means includes a combination of rotation control means of the electric servo motor and an upward movement suppression mechanism of the injection piston, and further, an injection speed of the injection piston is increased by providing a time difference between initial motions of the plunger and the injection piston.

The invention discloses a lobster manufacture technology capable of storing and transporting at a common temperature. The technology sequentially includes picking and checking the material lobster, cleaning, frying, cooling, seasoning, weighing, packaging and sterilizing. The technology includes: (1) soaking the qualified material lobster in the water for 30-60 min, the material and the water is at a weight ratio of 1:8; (2) washing the soil stain on the surface of the lobster by compressed air and impact pressure water flow; (3) soaking in the ozonic water for 3-10 min, the concentration of the ozonic water is 0.4mg/L-0.8mg/L; frying the cleaned lobster in the vegetable oil at the temperature of 170-220 DEG C for 1-3 min; cooling and seasoning the fried lobster in the flavor liquid for 30-60 min; weighing and laying the cooled and seasoned lobster on the dish, adding the flavor liquid, vacuuming, filling in the nitrogen and packaging and sterilizing the packaged lobster in a multi-phase manner of heating up and sharp cooling. The technology is applicable to industrialized manufacture, storage and transport at common temperature with a shelf life of 6 months.

A method for non-lethal crowd and personal protection. The method includes: firing non-lethal bullets towards a person; and deploying portions on the non-lethal bullets prior to impacting the person to decrease its impact pressure on the person.

The invention relates to a bidirectional energy-accumulating tension forming blasting pipe, belonging to the energy-accumulating blasting device field. The conventional energy-accumulating blasting is to use the energy-accumulating device to linearly accumulate energy (such as ABS slotted pipe), and the detonation shock wave releases energy along the cutting joint of the energy-accumulating device, which generates the linear impact pressure action on hole wall and results in that the substance to be exploded generates the vertical radial crack surface along a blast hole. At present, the invention is mainly applied to the directional blasting of soft rock. If the substance to be exploded has the high compressive strength, the effect is limited. Due to the adoption of a PVC pipe and the bidirectional energy-accumulating hole, the invention generates the tension action on the substance to be exploded when blasting, which thereby can fully use the characteristic of that the tensile strength is far less than the compressive strength in order to generate the tension forming blasting effect. Therefore, the invention is far better than the conventional energy-accumulating blasting in forming effect, peripheral hole mark rate, explosive consumption, blast hole drilling volume, overbreak volume and other aspects.

The invention relates to a method for controlling rock drilling, and a rock drilling arrangement At least one feed channel (37) of a feed actuator (3, 33) is pro-vided with a restrictor (46), which causes a pressure drop if the penetration rate increases and, consequently, a flow through the restrictor increases. A pressure difference and an increase in the penetration rate can be detected by sensing the pressure before the restrictor and after the restrictor. When the feed rate increases, a hydraulic system is arranged to decrease a percussion pressure.

The invention discloses a hydraulic anti-jamming control system for a drill loader. The hydraulic anti-jamming control system comprises a plunger pump, a multi-path reversing valve, a pilot oil source valve set, a pilot oil control valve set, an anti-jamming valve set, a pushing oil cylinder, an impactor and a rotating motor, wherein an oil outlet of the plunger pump is respectively connected with the multi-path reversing valve and the pilot oil source valve set; oil return holes of the multi-path reversing valve and the pilot oil source valve set are connected with an oil tank by a cooler; a first joint of the multi-path reversing valve is connected with the anti-jamming valve set; the anti-jamming valve set is connected with the pushing oil cylinder by a balance valve set; a second joint of the multi-path reversing valve is connected with the impactor; and a third joint of the multi-path reversing valve is connected with the rotating motor. The hydraulic anti-jamming control system for the drill loader can set multi-stage pushing and impact pressure, so as to be adaptive to different geological conditions, thereby effectively and actively preventing jamming; moreover, the control system can control the impactor and the pushing oil cylinder to transfer to a light-impact and light-pushing operation during jamming, so as to repair drilling and improve the anti-jamming effect.

A descaling device used to remove scales deposited on the inside of a shell and tube heat exchanger type steam generator, comprising a flexible lance which holds high-pressure water hose and is movable relative to tube plates, tube supporting plates, and heat-transfer pipes and a washing head installed at the tip of the flexible lance, wherein cavitation generating two nozzle holes communicating with the high-pressure water hoses are formed inside the washing head, whereby air bubbles are produced at the time of washing and an impact pressure produced when these bubbles burst is propagated so as to eliminate scales over a wide range.

The invention relates to copper-based powder dispersion ceramic as well as a preparation method and application thereof, and relates to the field of ceramic materials. The copper-based powder dispersion ceramic is prepared from an anti-abrasion constituent element as one of the raw materials, wherein the anti-abrasion constituent element comprises the following components by mass percent of all the raw materials: 1-5 percent of diamond powder and 1-5 percent of titanium diboride powder. The copper-based powder dispersion ceramic is high in impact pressure resistance, high in mechanical intensity, high in friction and abrasion resistance, long in service life, high in heat dissipation property and heat recovery property, high in high-temperature and low-temperature resistance, high in acid, alkaline, oil, water and the like corrosion resistance and the like.

An impact absorbing protective garment is provided, for wearing about the torso of a body, such as a baseball umpire, that comprises three layers. There is an outer shell layer comprised of a plurality of plate elements that are generally stiff, shock-resistant lightweight material, that are fastened to a middle layer. The middle layer is in the form of a flexible pad having various components, and that provides an intermediate thickness of cushioning material inside the outer shell layer. There is an inner layer carried by the middle layer that comprises a plurality of cells of phase change material, with the various cells being separated from each other by sealing zones. Upon sufficient impact the individual cells can communicate through small pores in the sealing zones or when the sealing zones rupture under impact pressure, to assist in impact absorption. The inner layer, in its cells, contains a phase change material that is a means for effecting a relatively constant microclimate cooling or heating of the area of the torso of the body which it confronts.

The invention discloses a feedback type keystroke life test device and a method. The device comprises an ECU and an electric execution unit of impact action, and is characterized by also comprising an impact pressure feedback circuit provided with a pressure sensor and a contact resistance feedback circuit. The ECU, the impact pressure feedback circuit, the contact resistance feedback circuit and a connection end of a tested keystroke constitute an input feedback control circuit, and the EUC, the electric execution unit and the connection end of the tested keystroke constitute an output feedback control circuit. The device is small in volume, simple in structure and low in cost, overcomes the defects of simple test data, no feedback and subjective judgment and the like of the existing test device, and has fairly high stability, repeatability and reproducibility.

The invention discloses an effect target structure for measuring a peak value of an impact wave pressure of a movable target and a testing method, and belongs to the field of impact wave pressure testing. Specifically, the structure can be used for measuring the impact wave pressure of a blast field of the movable target. The structure mainly comprises a pressure response membrane installation substrate (1), a central body (2), a pressure response membrane (3), a cover plate (4), a pressure response membrane sealing groove (5), a pressure response membrane pressure leading hole (6), a bolt installation hole (7), a compression bolt (8), and a fastening connection hole (9). The invention also discloses a method for measuring the impact wave pressure and mean load of the movable target. According to the invention, the effect target structure is installed on the movable target for measuring the impact wave pressure in a target region, and obtains the impact pressure and mean load of six points in a 500mm*126mm region according to a deformation value of the pressure response membrane (3).

A device for clearing pipe blockage includes: pumping means (A) for compressing air by pumping and having an outlet (18) for discharging compressed air out; and an inflatable balloon mounted at the outlet and expanding by air discharged through the outlet. The outlet is a one-way valve, and a cylindrical guide member (24) is formed to surround the outside of the inflatable balloon, guides the inflatable balloon to move forward inside a pipe when a front end part of the guide member is inserted into the pipe, and is made of flexible material. A presser which cleans the inner surface of the pipe while moving in a state where it gets in contact with the inner surface of the pipe is mounted at a front end of the inflatable balloon, and the blocked pipe is cleared by shock pressure by movement of the pumping unit and a change in pressure by expansion of the inflatable balloon by the compressed air.

A damping device for a handgrip of an object includes a bladder disposed in said handgrip, an inflation device in fluid communication with the bladder, and a controller adapted to detect at least one of vibrations and impact pressure, and automatically adjust a cushion pressure of said bladder by causing the inflation device to inflate or deflate the bladder with a fluid as appropriate in order to attenuate the at least one of vibrations and impact pressure transmitted through said handgrip.

The invention relates to epoxy pouring sealant comprising a component A and a component B. When the epoxy pouring sealant is used actually, the component A and the component B are mixed in the weight ratio being 15:1, and the epoxy pouring sealant can be used after the component A and the component B are mixed uniformly. Before curing, the fluidity is good, the filling property is good, operation is simple, little heat is released during curing, the shrinking percentage of the cured epoxy pouring sealant is low, and the epoxy pouring sealant has very high compressive strength and good impact toughness, is non-corrosive and non-toxic and can be put into use after being cured for 12 h at the room temperature. The epoxy pouring sealant is suitable for supporting and reinforcing base parts and parts bearing great impact pressure, such as liner plates of breaking machines and lining plates of ball mills, the lining plates can be completely contacted with the base parts, and the bearing capacity of the epoxy pouring sealant is greatly improved.

The invention discloses an adjustable ship anti-collision facility. The adjustable ship anti-collision facility comprises a positioning hole, a base, a first spring, a cylinder body, a first movable rod, an facility shell, an air pump, an air pipe, a buffer guiding device, an inflatable air bag and the like; a platform on a telescopic rod is driven to achieve up and down position adjustment through a first motor and a second motor, the arranged inflatable air bag is inflated by the air pump, tires are connected in series on the surface through a chain, when impact occurs, the inflatable air bag is firstly contacted for buffering to prevent impact on a hull, when the impact pressure reaches a certain degree, a first movable block and a second movable block slide towards the outer side to absorb energy through a second spring and a third spring, and a first movable rod in the cylinder body at the bottom extrudes the first spring for secondary energy absorption. According to the adjustable ship anti-collision facility, in the arranged buffer guiding device, a guide wheel is contact with a collision object and then rolls through direction force, collision force is guided to the side tochange the direction of the hull, and an arranged second movable rod extrudes a fourth spring for buffering.