摘要:
In an anti-vibration device having a partition member dividing a fluid-sealed chamber into upside and downside, aimed at enhancing the anti-vibration performance by preventing unwanted leak of the fluid through through-holes of the partition member. To that end, the partition member is constructed of an elastic membrane partitioning the fluid-sealed chamber, and a pair of grids limiting displacements of the elastic membrane; and the elastic membrane is provided at its either surface with projecting streaks integral therewith, the projecting streaks surrounding through-holes, defined by the grids, over their whole peripheries and abutting on the grids, thereby regulating the flow of fluid among adjacent through-holes.
摘要:
In a heat transfer tube for a zeotropic refrigerant mixture, the inner surface of the tube in which the zeotropic refrigerant mixture flows is formed with grooves having cross portions where the grooves intersect with each other, or the inner surface of the tube is formed with a plurality of independent projections. Thus, concentration boundary layers generated in the zeotropic refrigerant mixture are stirred to reduce the thickness of the concentration boundary layers, thereby decreasing the diffusion resistance and promoting the stirring effect. Consequently, there can be provided a heat transfer tube for a zeotropic refrigerant mixture which exhibits a high heat transfer performance, and a heat exchanger of a cross-fin tube type, a refrigerator and an air conditioner which include such heat transfer tubes.
摘要:
A propylene polymer is excellent in rigidity, heat resistance, surface hardness, glossiness, transparency and impact resistance. A propylene copolymer (wherein the amount of monomer units derived from an .alpha.-olefin other than propylene is not more than 5% by mol) is excellent in transparency, rigidity, surface hardness, heat resistance, heat-sealing property, anti-blocking property, anti-bleedout property and impact strength. A propylene copolymer (wherein the amount of monomer units derived from an .alpha.-olefin other than propylene is not less than 5% by mol) is excellent in transparency, environmental aging property, and effective in improving heat-sealing property at low temperature and impact strength. A propylene elastomer is excellent in heat resistance, impact absorbing capacity, transparency, heat-sealing properties and anti-blocking properties.
摘要:
It is an object of the present invention to provide a semiconductor device that is able to have the same Vp in all FETs formed on one chip.A semiconductor device of the present invention comprises a semiconductor substrate having a first region and a second region on a main surface; a first field effect transistor formed on the first region of the main surface, the first field effect transistor having first gates arranged in a plurality of rows and having a first total gate width, the first gates respectively establishing a first gate length and a first gate width; and a second field effect transistor formed on the second region of the main surface, the second field effect transistor having second gates arranged a plurality of rows and having a second total gate width smaller than the first total gate width, the second gates respectively establishing a second gate length substantially the same as the first gate length and a second gate width substantially the same as the first gate width.
摘要:
A deflection yoke is comprised of a separator for insulating horizontal and vertical deflection coils, the horizontal deflection coils of saddle type are provided within and top and bottom portion of the separator respectively, the separator has ribs for partly separating the top and bottom of horizontal deflection coils at their confronted portions, so that the confronted portions confront directly each other where the ribs are not present, thereby a magnetic field generated by the horizontal deflection coils is collected depending on a location and configuration of the ribs.
摘要:
A digital phase synchronous circuit includes a phase comparing circuit for outputting a count value according to the result of a phase comparison between an output signal and an externally input reference signal; a frequency regulating circuit for inputting an oscillation signal with a predetermined repetition frequency and controlling the repetition frequency according to the count value to output it as the output signal; and a controlling circuit for controlling the frequency regulating circuit to output the oscillation signal with the predetermined repetition frequency when the input of the reference signal breaks down.
摘要:
Disclosed is an air conditioner and, in particular, an air conditioner which is capable of blowing out warm air in heating mode. In the air conditioner of this invention, the condenser is thermally separated into an air-upstream-side and an air-downstream-side heat exchanger, and the heat exchange capacity of the air-downstream-side heat exchanger is adjusted, so that, under preset operating conditions, the entire refrigerant in the air-downstream-side heat exchanger can be kept in the superheated-gas phase, thus making it possible to blow out warm air having a temperature higher than the condensation temperature. Further, the refrigerant temperature at the outlet of the air-downstream-side heat exchanger is measured by a temperature sensor, and the revolving speed of the compressor, the revolving speed of the fan, etc., is so controlled that the temperature measured is kept at a level higher than the condensation temperature. Thus, under all operating conditions, the entire refrigerant in the air-downstream-side heat exchanger can be kept in the superheated gas phase, thereby making it possible to blow out warm air having a temperature higher than the condensation temperature.
摘要:
Disclosed is a mark detection apparatus for a microfilm having marks which are recorded adjacent to respective frames and are classified into a few groups with different sizes. The apparatus detects widths of the marks, determines a threshold level from detected widths of the marks and controls counting of the marks by size through the use of the threshold level.
摘要:
A fin assembly for heat exchangers used in air conditioners or the like. The fin assembly is formed from a thin plate material which is bent and wound to have a plurality of alternating turns each of which constitutes a fin. The fin is provided with a multiplicity of louvers cut-out and raised from the major plane thereof. The fins are inclined at an angle .theta. which is 30.degree. or smaller to the direction of flow of the gas entering the fin assembly, while the louvers are inclined at an angle .gamma. which is 20.degree. or smaller to the direction of flow of the gas entering the fin assembly in the direction opposite to the direction of inclination of the fin plates.
摘要:
A modulation circuit includes a band restriction filter 2, an attenuator 3, a modulator 4, a reference voltage generator 8, a comparing reference voltage generator 9, a voltage comparator 10 and an attenuator controller 7. The band restriction filter 2 receives modulation data. The attenuator 3 is connected to the band restriction filter 2 for adjusting its attenuation in response to an attenuator control signal. The reference voltage generator 8 is connected to the attenuator 3 for providing a reference voltage independent of a temperature and a power supply voltage to the attenuator. The comparing reference voltage generator 9 is connected to the reference voltage generator 8 for providing a comparing reference voltage independent of the temperature and the power supply voltage. The modulator 4 is connected to the attenuator 3. The voltage comparator 10 is connected to the attenuator 3 and the comparing reference voltage generator 9 for comparing the comparing reference voltage with a voltage of an output of the attenuator 3 and generating a comparison signal based on the comparison. The attenuator controller 7 is connected to the attenuator 3 and the voltage comparator 10 for generating the attenuator control signal in response to the comparison signal.