40results about How to "Simple and reliable sealing process" patented technology

The invention discloses a test unit for a hydrogen-rich / oxygen-rich gas multinozzle gas-gas injector, relating to the design field of hydrogen-rich / oxygen-rich gas multinozzle combustion chambers of liquid propellant rocket engines. The test unit mainly comprises an oxygen-rich prechamber, a hydrogen-rich prechamber and a main combustion chamber. An oxygen-rich chamber outlet flange is connectedto the oxygen-rich chamber outlet section of the oxygen-rich prechamber by a thread structure, an oxygen inlet supported flange is connected to an oxygen-rich gas inlet section of the main combustionchamber, a hydrogen-rich chamber outlet flange is connected to the hydrogen-rich chamber outlet section of the hydrogen-rich prechamber by the thread structure, and a hydrogen inlet coupling flange is connected to the hydrogen-rich gas inlet section of the main combustion chamber. The flanges in an experimental facility are made of A3 carbon steel material, and thus the cost is lowered. In addition, each part of the device is convenient to connect and install, and wall surface temperature is convenient to measure.

A subsea system for processing a fluid emanating from one or more subsea wells, comprising a fluid processing circuit and a base module (3) provided with at least one receiver (40) for receiving an insert module (4-8) comprising an appliance that forms part of the fluid processing circuit. The receiver (40) comprises a cavity (30) for accommodating the insert module (4-8). The insert module (4-8) is provided with a flange (31), which is adapted to bear on a corresponding flange (32) of the receiver (40) when the insert module (4-8) is mounted therein, a watertight seal (33) being arranged between said flanges (31, 32) so as to seal the space between the receiver (40) and the part of the insert module (4-8) received therein from the surrounding sea water.

The invention provides a bionic robot fish provided with a rising module and a tail module, relating to the bionic robot fish used underwater and aiming at solving the defects of the existing bionic robot fishes that the rising speed is low; rising characteristics are indistinct and adjusting the tail fin movement-diameter is inconvenient, etc. The other end of a screw (11) is fixedly connected with a piston (4) through a screw end closure (3), the piston (4) is arranged in a cylinder (1), and one end of a cylinder end closure (6) is fixedly connected with the cylinder (1); a straight-spur cone gearwheel (38) is arranged on a central shaft (43) and two ends of a central shaft (43) are rotationally connected with two sides of a box body (39), and two sets of sliding mechanism assemblies (84) are respectively arranged on a first disk (22) and a second disk (44) through a first eccentric shaft (25) and a second eccentric shaft (41). The bionic robot fish provided by the invention has a better rising characteristic and better bionic effect and can easily realize the adjusting to the tail fin movement-diameter of the robot fish so as to lead the swaying of the fish body to be rare and the moving stability to be better.

A pump unit is provided having a wet-running electric motor, wherein a rotor of the pump unit can be driven by the electric motor at a maximum speed of greater than 20,000 rev / min, and the rotor is sealed off axially in the region of a suction port.

The invention relates to a locking device for a lock opening which is arranged in a wall between a first and a second recipient, said lock opening comprising a blocking element, which is arranged in the inner chamber of the first recipient, and a counter-plate which is associated with the blocking element. A first magnet device is provided in an area of the counter-plate and a second magnet device, which is associated with the first magnet device, is provided in the region of the blocking element. In order to close and / or open the locking device by means of the first and second magnet device, a positive and / or negative contact pressure can be produced between the blocking element and the counter-plate.

The invention discloses a Hopkinson impact experiment device and method for coal containing methane. The device comprises a confining cylinder body, an oil-resistant rubber sleeve, an exhaust hole, apressure-bearing fixing block with an air flowing slot, an air inflation pipe, a pressure gage, a high pressure oil pipe and a pressure gage; the upper half part of the pressure-bearing fixing block with the air flowing slot is connected with the air inflation pipe; the pressure-bearing fixing block is wrapped in the oil-resistant rubber sleeve; the oil-resistant rubber sleeve is connected with the inner wall of the confining cylinder body; the high pressure oil pipe and the pressure gage are connected with the lower side of the confining cylinder body. The device is connected with a Hopkinsonpressing rod, pressure oil with certain pressure is injected into the confining cylinder body, gas is injected into an area wrapped by the oil-resistant rubber sleeve, and after the gas is completelyadsorbed by a sample, an impact experiment is started. According to the device and method provided by the invention, researches on the influence of confining pressure on the sample and the influenceof the gas contained by the coal on the sample are simultaneously achieved; the device is simple in structure, reasonable in design and convenient to operate, can improve the success rate of the experiment, and has the relatively strong practicability.

The invention discloses a N2O micro thruster experiment device, and belongs to the technical field of spatial micro thrust. The device comprises a N2O gas inlet connecting pipe nozzle, a red copper sealing ring, a front porous plate, a catalytic decomposition chamber, a pressure measurement connecting pipe nozzle, a micro spray pipe, a rear porous plate, a temperature measurement connecting pipe nozzle and catalyst grains; each component of the N2O micro thruster experiment device is replaceable, wherein the front porous plate, the rear porous plate and the N2O gas inlet connecting pipe nozzle can be freely detached, and the rest components form a whole by welding; the front porous plate and the rear porous plate are fixed on the step surface of the catalytic decomposition chamber, the catalyst grains are filled in the middle, and the N2O gas inlet connecting pipe nozzle is connected with the catalytic decomposition chamber through screw threads to fix the front porous plate; and upstream N2O pressure and flow of the micro thruster experiment device are adjustable, N2O enters the catalytic chamber from the gas inlet connecting pipe nozzle to automatically maintain decomposition, and the temperature measurement connecting pipe nozzle and the pressure measurement connecting pipe nozzle are used for monitoring the starting temperature of a catalytic bed and the pressure of a thrust chamber respectively. The device can conveniently research related parameters of N2O micro thruster performance.

The invention relates to an aircraft with a connection element for connecting at least one first conduit element or the like positioned in a supply chamber of an aircraft with at least one second conduit element positioned in a cabin chamber of the aircraft, wherein supply chamber and cabin chamber are separated from each other by means of a separation element, substantially comprising a connection part comprising fastening elements for fastening the first and second conduit element.Known connection elements have the disadvantage that there occur sealing problems due to the fastening of the fastening element at the outside of the connection part at the end facing the cabin chamber. A further disadvantage is that the connection elements protrude into the cabin chamber and form stumble edges there.In that at least the fastening element for the fastening the conduit element of the cabin chamber is provided within the connection part, there may be realised a compact structural shape which does not protrude from the separating element into the cabin chamber, and which may in addition be reliably sealed.

A motor vehicle lock module is provided for actuating a vehicle component which includes a locking element and a Bowden cable with a Bowden cable grommet and a core which is guided movably in the Bowden cable sleeve for the transmission of an adjusting force. The core is connected to the adjusting element at a first end. The Bowden cable sleeve can be received at least at a first end in an end piece. Furthermore, a one-piece seal is provided, which encloses the first end of the Bowden cable sleeve in a first region and extends in a second region via a region of the core emerging from the Bowden cable sleeve and sealing on the core is applied. The seal is designed to be pressed into the Bowden cable grommet in an end-piece-received condition in the first region from an end piece.

The invention provides a code-spurting marking machine jet printing head, comprising a staggered cavity seat, a 37 core aviation joint, a housing, a single channel solenoid valve and a plurality of sets of solenoid valve modules. The solenoid valve modules comprise three solenoid valve arranged in the staggered cavity seat; left and right ends of the staggered cavity seat are respectively provided with a first bent sub and a second bent sub. The sidewall of the housing is provided with a first separator plate joint, a second separator plate joint, a third separator plate joint and a fourth separator plate joint. The first bent sub is in connection with the first separator plate joint through an ink incoming tube, and the second bent sub is in connection with the second separator plate joint through an ink discharge tube; the single channel solenoid valve is arranged in the housing. The code-spurting marking machine jet printing head can guarantee stable and reliable operation in any medium, normally and stably operate even using heavy pigment ink such as oil paint under hostile environments, reduce machine failure rates, and improve equipment stability and reliability.

The invention relates to a GW6B type disconnecting switch open-type transmission case which mainly comprises an open-type case body, rotary shafts, conducting clips, a tension spring, an upper conducting pipe and a lower conducting pipe, wherein the open-type case body is mainly composed of conducting bars and a wiring board, the number of the rotary shafts is two, the two rotary shafts are arranged in parallel between the two conducting bars, the two conducting clips rotate in the reversed direction through a transmission mechanism, a voltage-sharing ball is arranged at the upper end of the upper conducting pipe, the lower conducting pipe is installed in the conducting clips, the upper conducting pipe and the lower conducting pipe are connected through a connecting pipe, the two ends of the rotary shafts are connected with the conducting bars through bearings A respectively, bearings B are arranged between the conducting clips and the rotary shafts, annular grooves are formed in the two ends of a shaft sleeve respectively, the shaft sleeve is limited and fixed through cover plates, the tension spring is obliquely arranged between the two conducting bars, and a tension spring protection sleeve is arranged on the outer surface of the tension spring in a sleeved mode. The GW6B type disconnecting switch open-type transmission case has the advantages that due to the fact that the disconnecting switch transmission case is open, working staff can observe, maintain and debug transmission pieces inside conveniently.

The present invention provides a method for preparing an assembly type polymer micro fluidic chip equipped with an integrated pneumatic micro valve, which is characterized in that the polymer chips can be assembled into a whole chip with a structure form of four layers 'plastic gas channel control substrate-PDMS...PDMS-plastic liquid channel substrate'. The gas channel control substrate and the liquid channel substrate irreversibly sealing joint one sheet of PDMS elastic membrane respectively to prepare a gas channel control semi chip and a liquid channel semi chip, and are reversibly sealed by virtue of the natural adhesive force of PDMS membranes of two semi chips to obtain the polymer whole chip with an integrated micro pneumatic micro valve or micro valve array. The method has the advantages of simple preparation technique, low cost and high success rate; and the liquid channel semi chip or the gas channel control semi chip can be assembled freely and changed independently, which is particularly suitably used as a disposable device.