50results about How to "Solve the lack of pressure resistance" patented technology

A plunger seal (1) for a pump, which is used for a fuel injection pump for a direct-injection gasoline engine, in which, even if a resin material is used as a fuel seal member (12), the plunger seal can be made compact, sealing ability is increased, and assembling man-hours can be reduced, and in which set sealing performance can be achieved when a U-shaped elastic member (33) for applying an urging force is used in a groove (41) formed in the fuel seal member (12). The resin fuel seal member (12) and an oil seal member (13) are assembled to form one seal system. Further, when the U-shaped elastic member (33) is installed in the groove (41), the axial position (L1) of an end surface (44a) that is on the side opposite the side to be sealed and belongs to a flange (44) for fixation formed on the inner peripheral surface of the groove (41) is positioned more on the side (B) opposite the side to be sealed than the axial position (L2) of a head section (15b) of a seal lip (15) of the fuel seal member (12).

A flat tube making platelike body 15 is in the form of a single metal plate in its entirety and comprises two flat wall forming portions 17, 18 having the same width, a connecting portion 16 for interconnecting these portions 17, 18, side wall forming portions 9, 10 projecting from the respective flat wall forming portions 17, 18 and each formed integrally with one side edge of the flat wall forming portion opposite to the connecting portion 16, and first and second reinforcing wall forming portions 11, 12 integrally formed on each of the flat wall forming portions 9, 10. The first reinforcing wall forming portions 11 are butted against the respective second reinforcing wall forming portions 12 in pairs when the metal plate is folded into a hairpin form at the connecting portion 16. The first reinforcing wall forming portions 11 are given a smaller thickness than the second reinforcing wall forming portions 12 on the other flat wall forming portion 18 butted against the respective portions 11. The platelike body 15 gives an enhanced brazing joint strength to the reinforcing wall forming portions in fabricating a flat tube, and improved pressure resistance to the flat tube to be fabricated.

Disclosed is a display panel having a display area with a matrix array of display pixels. The display panel includes an electrode arranged so as to cover the whole of the display area, and a common electrode electrically connected to the electrode. The common electrode is frame-shaped and is arranged along the periphery of the display area. The common electrode has a notch that is opposed to a power supply lead pattern to which a potential different from that applied to the common electrode is applied.

The invention provides a circular saw guiding device which can precisely and correctly guide a dynamoelectric circular saw. The circular saw guiding device 10 is provided with a guide plate 11 and a handle device 20, wherein the guide plate 11 guides the dynamoelectric circular saw 5, and the handle device 20 is connected to the guide plate 11; the handle device 20 is provided with a handle substrate 21 and a knob 23, wherein the handle substrate 21 is arranged on a processed object, and the knob 23 is supported by a pair of struts 24a and 24b on the handle substrate 21 and is arranged in a lifting mode from a rear end part 23 b to a front end part 23a; the front end part 23a extrudes to the front end side from the strut 24a at the front end; and the rear end part 23b extrudes to the rear end side from the strut 24b at the rear end. When the dynamoelectric circular saw is used, the circular saw guiding device can simply and easily apply the pressure to the dynamoelectric circular saw, has enough pressure-bearing performance on strong force pressure and can precisely and correctly guide the dynamoelectric circular saw.

A flat tube making platelike body 15 is in the form of a single metal plate in its entirety and comprises two flat wall forming portions 17, 18 having the same width, a connecting portion 16 for interconnecting these portions 17, 18, side wall forming portions 9, 10 projecting from the respective flat wall forming portions 17, 18 and each formed integrally with one side edge of the flat wall forming portion opposite to the connecting portion 16, and first and second reinforcing wall forming portions 11, 12 integrally formed on each of the flat wall forming portions 9, 10. The first reinforcing wall forming portions 11 are butted against the respective second reinforcing wall forming portions 12 in pairs when the metal plate is folded into a hairpin form at the connecting portion 16. The first reinforcing wall forming portions 11 are given a smaller thickness than the second reinforcing wall forming portions 12 on the other flat wall forming portion 18 butted against the respective portions 11. The platelike body 15 gives an enhanced brazing joint strength to the reinforcing wall forming portions in fabricating a flat tube, and improved pressure resistance to the flat tube to be fabricated.

The invention discloses a hollow turbine blade ceramic core removal device based on the heat convection principle and belongs to the field of aircraft engine hollow turbine blade manufacturing equipment. The device comprises an autoclave assembly, a buffer still assembly and a controller. The autoclave assembly and the buffer still assembly are each internally provided with a heating device. The autoclave assembly is connected with the buffer still assembly through a convection channel. The convection channel is provided with a valve. The temperatures of the autoclave assembly and the buffer still assembly, the power of the heating devices and the on/off state of the valve are all controlled through the controller. The removal device is reasonable in structural design, easy and convenient to use and capable of effectively solving the problem that it is difficult to remove a residual ceramic core in an aluminum-based metal blade body of a hollow turbine blade; and the device can be widely applied to the field of hollow turbine blade manufacturing.

A heat exchanger having a tube-fin block that is closed by two collecting tanks, whereby the ends of the tubes engage in a bottom of the particular collecting tank and the bottom is closed with a cover. A partition wall secured to the cover is formed transverse to a longitudinal extension of the collecting tank and divides an interior space of the collecting tank into two subchambers. The heat exchanger, which prevents great structural changes for compensating temperature-induced stresses, a first stress decoupling device is formed in the bottom and/or a second stress decoupling device in the area of the partition wall in the cover of at least one collecting tank.

A hydrogen storage container has an inner side resin layer that comes into contact with hydrogen gas that is introduced into the container, a barrier layer which is disposed on the outside of the inner side resin layer and which prevents permeation of hydrogen gas, and an outer side resin layer comprising a resin. Among these layers, the inner side resin layer comprises a polyethylene-based resin, and if the thickness of the barrier layer is denoted by Y and the thickness of the inner side resin layer is denoted by X, the thickness X satisfies formula (1). Moreover, D in formula (1) is the diffusion coefficient of the polyethylene-based resin, as determined by means of a differential pressure method at 50° C.

The invention relates to a working electrolyte of a lead aluminum electrolytic capacitor. The working electrolyte is composed of the following raw materials in percentage, by mass of 30-50% of solventI, 10-20% of solvent II, 6-9% of solute I, 2-4% of solute II, 1-3% of antifouling agent, 5-20% of additive and 8-20% of pressure-resistant improver. The preparation method comprises the following steps of adding the solvent I and the solvent II into a reaction kettle, heating while stirring, adding the additive when the temperature rises to 120 DEG C, and continuously heating to 140 DEG C, addingthe solute I and the solute II, keeping the temperature of 140 DEG C for 45 minutes, cooling the kettle to 130 DEG C, adding the pressure-resistant improver, stirring and keeping the temperature for30 minutes, and finally, cooling the kettle to 110 DEG C, adding the antifouling agent, fully stirring, and naturally cooling to room temperature after 45 minutes to obtain the finished product electrolyte. The method is advantaged in that the enough voltage endurance capability can be guaranteed under the condition of high conductivity, the aluminum foil is prevented from hydration reaction, andthe service life of the product is prolonged.

The invention provides a pLugging device for a shieLd tunneL. After the pLugging device carries out pLugging, a sensor in the pLugging device detects a Leakage point, the Leakage point is repaired intime, and therefore the seaLing effect of the pLugging device on the shieLd tunneL is improved. According to the pLugging device, the Leakage point can be searched for, compensation is carried out intime aiming at the Leakage point, the fit degree of the pLugging device and the tunneL is increased, and the pLugging effect is improved.

The invention discloses a magnetic liquid sealing device. The magnetic liquid sealing device comprises a shell, a rotating shaft, a plurality of shaft sleeves and a plurality of pole shoes; a cavity is formed in the shell; the rotating shaft is rotatably arranged in the cavity; the shaft sleeves are sleeved on the rotating shaft so as to rotate along with the rotating shaft; the plurality of shaft sleeves are arranged at intervals in the axial direction of the rotating shaft; the pole shoes are sleeved outside the shaft sleeves; the plurality of pole shoes are in one-to-one correspondence with the plurality of shaft sleeves; the inner circumferential surfaces of the pole shoes and the outer circumferential surfaces of the shaft sleeves are spaced in the radial direction of the rotating shaft to form sealing gaps; and magnetic liquid is arranged in the sealing gaps. The magnetic liquid sealing device has the advantages of being compact in structure and high in reliability.

The invention discloses a circuit breaker anti-trip test device for solving the problems that circuit breaker anti-trip test work is too tedious, and time consuming is too long in the prior art. The device comprises that a first microprocessor module is connected with a first oscillation circuit, a first reset circuit, a first digital display module, a timing switch, a first open-in binding post and a power supply module; a second microprocessor module is connected with a second oscillation circuit, a second reset circuit, a second digital display module, the timing switch, a second open-in binding post and the power supply module; and the timing switch is connected to an open-out stem node. The circuit breaker anti-trip test device has the beneficial effects that it is suitable for all circuit breakers, small in size, convenient to carry, easy to operate and has enough voltage resistance; and after using the circuit breaker anti-trip test device, the working duration of the circuit breaker anti-trip test is shortened from previous40 minutes to 10 minutes, the labor intensity of workers is greatly reduced, and the working efficiency is improved.

A header for use in heat exchanger includes a base wall (20) with a plurality of tube insertion apertures (23), an opposite wall (30) opposed to the base wall (20), a pair of side walls (40a and 40b) disposed at both lateral sides of the base wall (20) and the opposite wall (30) and connecting the lateral sides and are inforcing walls (50a and 50b) disposed betwwen the base wall (20) and the opposite wall (30) along a longitudinal direction thereof and connecting the base wall (20) with the opposite wall (30). The side walls (40a and 40b) are integrally formed at both lateral sides of the base wall (20) be bending processing. A first half (30a) of the opposite wall (30) is integrally formed at a side of one of the side walls (40a) by bending processing, and a second half (30b) of the opposite wall (30) is integrally formed at a side of the other of the side walls (40b) by bending processing. Reinforcing walls (50a and 50b) are integrally formed at sides of the first half (30a) and the second half (30b) of the opposite wall (30) by bending processing. With this header for use in heat exchanger, high pressure resistance can be obtained, and the number of parts and the manufacturing cost can be decreased.

The present invention discloses a cover gasket of pressure electric cooker. Said pressure electric cooker includes self-body portion and cooker cover portion. The cooker is inserted into the interior of self-body portion, and the cooker cover portion includes exterior cover, interior cover, inner cooker cover, lock ring and gasket. Said gasket is mounted at the interior edge of inner cooker cover, and is equipped with a horizontal reinforcement portion. Said invention also provides the connection relationship of the above-mentioned components. The reinforcement portion proimote the wearability of gasket, and can prolong its service life.

The invention discloses a continuous casting production molding method of a hollow fiber membrane module. The method comprises the following steps: filling the membrane shell of a hollow fiber membrane module with a bundle of membrane silks to be cast, and sealing the ends, to be cast, of the membrane silks with a sealant; and mounting a casting tool, performing continuous casting through successively casting flexible epoxy resin or polyurethane and then casting hard epoxy resin by a process for casting the flexible epoxy resin and the hard epoxy resin from the bottom of the hollow fiber membrane module, and curing the resins to form a sealed structure with a flexible top and a hard bottom on the dependence of the inherent density difference between the two resins. The flexible epoxy resinis adopted to substitute the polyurethane to carry out root protection, so the requirement for the dryness of the membrane silks is significantly reduced, and the requirements for the temperature andthe humidity of the casting environment are reduced, thereby the cost investment of casting hardware is reduced, and the production cost is reduced.

A decorative element including a number of stones (4) assembled in a closed frame (2) to form two decorative faces. The stones include two opposite external faces (10, 12) which are decorative, and internal faces serving as joints (20, 22) between these stones, and as edging (24, 26) with the interior contour of the frame (32). Some of these internal faces (22, 24) have grooves (28) arranged inside the volume of the frame (2) and accepting strips (34) the ends of which cross the contour of this frame at two opposing points in order to be secured. The decorative element is characterized in that the interior contour (32) of the frame (2) has a protruding cross section which fits into corresponding channels made in the internal edging faces (24, 26) of the stones (4). Applicable for example to the creation of jewelry.