Abstract:
A lubricating oil composition for refrigerators comprising a base oil which comprises as a main component a polyol ester compound obtained from a polyhydric alcohol selected from among pentaerythritol, dipentaerythritol, trimethylolpropane, and neopentyl glycol and a C4 to C20 aliphatic monocarboxylic acid and which has an acid value of 0.02 mgKOH/g or less and a hydroxyl value of 5 mgKOH/g or less. A compressor using the lubricating composition. The lubricating oil composition is applicable to such refrigerators that use a refrigerant having a specific structure, such as an unsaturated fluorinated hydrocarbon compound, and being usable in current car air conditioner systems, and has excellent compatibility with the refrigerant, good sealing properties, capability of imparting a low coefficient of friction to sliding members and, yet, excellent stability. The compressor uses the lubricating composition.
Abstract:
The present invention provides the agricultural chemical-spreading agent composition, containing: (A) a polysaccharide in an amount of 5 to 30% by weight; (B) a polyoxyalkylene sorbitan fatty acid ester in an amount of 5 to 40% by weight; and (C) at least one nonionic surfactant selected from polyoxyalkylene alkyl ethers, sorbitan fatty acid esters, and silicone surfactants in an amount of 5 to 40% by weight, wherein the component (A) has a viscosity of not less than 5000 mPa·s in the form of a 5% by weight aqueous solution at 25° C., and a weight ratio of contents of the component (A) to the sum of components (B) and (C), (A)/[(B)+(C)], is 10/90 to 40/60.
Abstract:
A light source apparatus includes first and second light direction changing faces that extend in a longitudinal direction, a light guiding member having first and second light emitting faces that are formed to respectively face the first and second light direction changing faces and a light source that is arranged on one end face of the light guiding member. A first vertical plane extending in a longitudinal direction with respect to the first light direction changing face and a second vertical plane extending in a longitudinal direction with respect to the second light direction changing face intersect. A groove which extends in a longitudinal direction of the light guiding member is formed between the first and second light direction changing faces. A surface forming the groove may be parabolic in a cross section.
Abstract:
To prevent loss of control of a pressure of a source gas within a movable range of a control valve, a source gas concentration control system is provided. The system may include a first valve that is provided on an outlet line, a concentration measurement part that measures a concentration of the source gas in mixed gas, and a concentration control part that controls a stroke of the first valve such that the measured concentration of the source gas becomes equal to a predetermined concentration setting. The measured concentration may be measured in the concentration measurement part. The system may further include a temperature controller that controls a temperature inside the tank to meet a temperature setting, and a temperature setting part that sets the temperature setting of the temperature controller.
Abstract:
The swinging operation of a rotary striker 14 turns micro switches 11 and 12, which detect the position of a piston 9, ON/OFF. The striker 14 includes a lower-limit switch cam 15 and an upper-limit switch cam 16. The cams 15 and 16 engage with switch bosses 36 and 37 that move together with the piston 9. When the piston 9 is positioned at a lower-limit stop position L, the cam 15 becomes engaged with the boss 36 to make the striker 14 swing in the X-direction and pushes a switch button 11a of the switch 11. When the piston 9 is positioned at an upper-limit stop position U, the cam 16 becomes engaged with the boss 37 to make the striker 14 swing in the Y-direction and pushes a switch button 12a of the switch 12.
Abstract:
This invention aims at providing an inexpensive semiconductor device having a parasitic diode and lowering an hfe of a parasitic PNP transistor and a manufacturing method thereof. Such semiconductor device includes a P-type silicon substrate and a gate electrode formed above the P-type silicon substrate. The P-type silicon substrate includes an N-type well layer, an N-type buried layer, a P-type body layer, an N-type source layer formed in the P-type body layer, and a drain contact layer formed in the N-type well layer. The P-type body layer and the N-type source layer are formed by self alignment that uses the gate electrode as a mask. The N-type drain contact layer is formed opposite the N-type source layer across the P-type body layer formed below the gate electrode. The N-type buried layer is formed below the P-type body layer.
Abstract:
Provided is a detergent composition capable of readily incorporating therein a cationic polymer in high concentration, having good storage stability, and providing excellent foamability and feeling upon use.The detergent composition containing the following components (A), (B), and (C): (A) at least one selected from the group consisting of cationic polymers and amphoteric polymers; (B) a compound represented by the following formula (1): R1O-(AO)n—R2 (1) wherein R1 represents a linear or branched alkyl or alkenyl group having from 8 to 10 carbon atoms, AO represents an alkyleneoxy group having from 2 to 4 carbon atoms, n means an average number of moles and stands for from 0.5 to 4, and R2 represents a hydrogen atom or a methyl group; and (C) at least one selected from the group consisting of amphoteric surfactants and cationic surfactants, and the detergent composition having a content of Component (A) from 5 to 40 wt. %, and having Component (B) and Component (C) at a weight ratio (B)/(C) of from 0.5 to 2.5.
Abstract:
A material gas concentration control system for keeping a concentration of a material gas in a mixed gas constant comprising a tank to accommodate the material, an inlet line to input a carrier gas for evaporating the accommodated material into the tank, and an outlet line to output the mixed gas consisting of the material gas evaporated in the tank and the carrier gas, and further comprising a first valve arranged in the inlet line, a concentration measuring part that measures the concentration of the material gas in the mixed gas, and a concentration control part that controls an open degree of the first valve so as to make the measured concentration of the material gas measured by the concentration measuring part become the previously determined set concentration.
Abstract:
To provide a stable water-repellent inorganic powder which is substantially free from re-dissolution of a silicon compound used for surface treatment whether an organic solvent is polar or non-polar.A water-repellent inorganic powder which is surface-treated with a silicon compound, wherein the silicon compound is one having a group reactive with the inorganic powder, and when the inorganic powder is dispersed in any of polar organic solvents and non-polar organic solvents, the retention of the silicon compound is at least 90%. Preferably, the silicon compound is an aqueous emulsion of any of methylhydrogen silicone oil, alkoxy-modified silicone oil, amino-modified silicone oil, epoxy-modified silicone oil, polyether-modified silicone oil or carboxyl-modified silicone oil, and to the aqueous emulsion, at least one surfactant selected from the group consisting of a sorbitan fatty acid ester type, a polyoxyethylene sorbitan fatty acid ester type, a polyethylene glycol fatty acid ester type, a polyoxyethylene fatty acid ester type, an N-acylamino acid type, a polyoxyethylene alkyl ether type and a polyoxyethylene alkylphenyl ether type, is incorporated.
Abstract:
A power transmission mechanism for transmitting driving power between a shaft and a rotor connected to the shaft includes a cylindrical adapter located between the shaft and the rotor and a screw seat arranged on the shaft. The adapter has a first internally threaded portion in its inner peripheral surface and a first externally threaded portion in its outer peripheral surface. The first internally threaded portion is engaged with a second externally threaded portion of the shaft, and the first externally threaded portion is engaged with a second internally threaded portion of the rotor. The screw seat has a screw seat surface. The adapter is screwed onto the shaft such that the adapter is pressed against the screw seat surface, and the rotor is screwed onto the adapter such that the rotor is pressed against the screw seat surface.