摘要:
In a bushing which has a terminal with a bend for connecting a conduit tube and a lead tube, the effect to cool the inner corner of the bend is enhanced. The bushing includes a conductive conduit tube, a conductive lead tube, and a terminal. The terminal has a bend and connects the conduit tube and the lead tube. Electric current and cooling gas flows in these tubes. A cooling means is provided for forced cooling of the inner corner of the bend of the terminal. One example of the cooling means is a guide vane which makes cooling gas flowing in the bushing come closer to the inner corner of the bend. A larger current can flow even when the bushing has the same size as a conventional one.
摘要:
A multilayer chip varistor is provided as one capable of suppressing production of cracks and thereby preventing a connection failure between an internal electrode and a through-hole conductor. An internal electrode 21 is so configured as to be curved toward a direction of penetration of a through hole 10 in a connection portion 28 thereof to a through-hole conductor 27. By this configuration, a region T sandwiched between a curved surface 28a of the connection portion 28 and the through-hole conductor 27 is formed in a varistor layer 9 near the connection portion 28. In this region T, a metal concentration thereof becomes higher because of diffusion of metal of the internal electrode 21 and the through-hole conductor 27 into the varistor layer 9, and therefore, after completion of firing, the region T has an intermediate contraction percentage between that of the internal electrode 21 and through-hole conductor 27 and that of the other region of the varistor layer 9. This permits the region T to relax stress near the connection portion 28 where the internal electrode 21, through-hole conductor 27, and varistor layer 9 are congested so as to readily produce cracks.
摘要:
A sealing device in which a main seal lip used for a shock absorber is formed in a one-stage structure, wherein lattice-shaped projections that include a plurality of projections extending along a sliding direction and a plurality of projections extending along a direction perpendicular to the sliding direction are formed on a sliding surface of the main lip at a position apart a specified distance from a lip edge.
摘要:
In a varistor, a heat radiating portion contains the same components as ZnO that is the main component of a varistor element body, as metal oxides, thereby, the structural components of the varistor element body and the heat radiating portion are caused to be common. During firing, Ag contained in the heat radiating portion diffuses into the grain boundaries of ZnO, near the interface between surfaces of the heat radiating portion and the varistor element body. Consequently, in the varistor, cracks hardly occur between the varistor portion and the heat radiating portion during firing (or during binder removal), thereby, ensuring sufficient bonding strength between the varistor portion and the heat radiating portion. Therefore, heat conducted to the varistor portion is radiated efficiently conducting through electrically conducted paths formed in the heat radiating portion from the surface facing the varistor element body to other three surfaces of the heat radiating portion.
摘要:
A meter device includes an indicator unit, movably supported within a predetermined range, for representing an amplitude value of an input signal by a movement amount Δθ from a reference position θ0 which is one end of the predetermined range. A gain acquiring unit acquire a gain of the input signal; and a maximum movement amount determining part determines a maximum movement amount ΔθM of the indicator unit at the gain based on the gain acquired by the gain acquiring unit. A drive control unit moves the indicator unit to a position corresponding to the amplitude value of the input signal between the reference position θ0 and a maximum movement position θM moved from the reference position θ0 by the maximum movement amount ΔθM based on the maximum movement amount ΔθM determined by the maximum movement amount determining part and the amplitude value of the input signal.
摘要:
In a motor stator structure, a neutral-point bus ring is arranged along an inner peripheral portion of a stator, and alternately includes a larger-diameter portion, a first link portion, a smaller-diameter portion, and a second link portion. An end of a wound wire pulled out of a coil is located between radially-extending adjacent first and second link portions. A connecting terminal is connected at one end to the end of the wound wire, and at the other end to the first and second link portions. The use of the neutral-point bus ring ensures that a neutral point can be formed without bending the end of the wound wire of the coil into a U-shape. Particularly when a rectangular cross-section wire difficult to bend is used as the wound wire, the processing cost can be reduced.
摘要:
The invention prevents a temperature in an end portion of a stator iron core from becoming excessively high due to a heat generated in the end portion of the stator iron core of a turbine generator. In a dynamo-electric machine provided with a stator constituted by a stator iron core, a stator iron core pressing member and a stator coil, a rotor constituted by a rotor iron core, a rotor coil and a holding ring, and a baffle plate arranged in an inner diameter side of an end portion of the stator iron core and distributing a cooling medium cooling an inner side of the machine, the baffle plate is provided for forming a flow of the cooling medium along an inner periphery of the stator iron core pressing member and/or an inner peripheral surface of the end portion of the stator iron core.
摘要:
A process for producing an aliphatic polyester resin composition, wherein an aliphatic polyester resin is melt-kneaded with a phosphoric acid ester having a reduced moisture content of 1.5 wt. % or less. As a result, an aliphatic polyester resin composition having an improved moisture resistance is provided.
摘要:
A molecular structure construction assisting apparatus includes a storage unit configured to store a data structure pertaining to a molecular structure, the data structure including at least a molecule data structure including an atom data structure pertaining to an atom, a bond axis data structure pertaining to a bond axis, and a molecule main data structure, an element data structure pertaining to an element of the atom, a display unit configured to display the molecular structure, an operation unit configured to instruct a target atom to be arranged in the molecular structure, a molecular structure design unit configured to derive a hybrid orbital of the target atom and a localized molecular orbital pertaining to a bond formed between the target atom and another atom of the molecular structure by using the data structure.
摘要:
An aromatic polyester resin composition, comprising: a melt-kneaded product of 99-70 wt. parts of an aromatic polyester resin and 1-30 wt. parts (providing a total of 100 wt. parts together with the aromatic polyester resin) of a polyglycolic acid resin, wherein the aromatic polyester resin is an aromatic polyester resin polymerized with an antimony compound (catalyst), the polyglycolic acid resin is a polyglycolic acid resin obtained by ring-opening polymerization of glycolide, and the composition further contains a metal-deactivating agent in a proportion of 17-500 mol. % with respect to the antimony in the aromatic polyester resin. As a result, gas generation during the melt-processing of a composition obtained by adding a relatively small amount of polyglycolic acid resin to an aromatic polyester resin is effectively suppressed to provide an aromatic polyester resin composition with a good gas-barrier property.