摘要:
A compressor includes a housing having a first casing which encloses a compression mechanism and a second casing releasably attached to one end of the first casing. The second casing supporting a pair of bearings which in turn rotatably support a drive shaft. The first one of the bearings is positioned adjacent the first casing and the second bearing is spaced therefrom toward the driven end of the drive shaft. A sealing mechanism is disposed about the drive shaft and between the bearings for sealing the compressor housing and preventing refrigerant or lubricating oil from leaking therefrom.The second bearing includes a gripping mechanism on the outermost radial surface thereof. The gripping mechanism is preferably an annular groove formed in the outermost radial surface of the bearing. Therefore, it is not necessary to remove the casing which supports the bearing from the bearing before pulling the bearing off of the shaft. Furthermore, the sealing mechanism may be replaced without separating the first and second casings.
摘要:
A valuable displacement compressor has several cylinder bores, a crank chamber, a valve plate, a discharge chamber, and a capacity control mechanism for controlling pressure in the crank chamber. A swash plate is disposed in the crank chamber and is tiltably connected to a drive shaft. The swash plate is coupled to each of the pistons, so that the pistons are driven in a reciprocating motion within the cylinder bores. A tilt angle of the swash plate is variable depending on pressure in the crank chamber. A gas passage communicates between the crank chamber and the discharge chamber via the capacity control mechanism, which is disposed along with a line extension of the drive shaft. A first end portion of the capaity control mechanism projects into the discharge chamber and has a screw mechanism.
摘要:
A humidifier having a heat-generating composition for generating steam is disclosed. The humidifier is permitted to fit the face, keeping the humidity high at a space between the face and the humidifier for many hours. A central non heat-generating belt, which functions as a flexible belt, is provided between inner heat-generating regions containing heat-generating composition. Lateral non heat-generating belts, which function as a flexible belt, are provided between the inner heat-generating regions and outer heat-generating regions. The humidifier fits the face by deforming the flexible belts. Thus, the face is kept moisturized by steam discharged from the inner heat-generating regions and the outer heat-generating regions.
摘要:
A dissolved composition containing (A) one or more of [benzo-1,2,4-thiadiazine]-1,1-dioxide derivatives, (B) dimethyl sulfoxide, benzyl alcohol, or the mixture thereof; (C) water; and (D) one or more anionic surfactants and/or surfactants, other than anionic surfactants, having a nitrogen atom in the molecule thereof, or (D') n-decylmethyl sulfoxide, or (D") (i) one or more ampholytic surfactants and/or nonioni-cationic-polar surfactants and (ii) one or more nonionic surfactants having a nitrogen atom in the molecule thereof and, optionally, (E) isopropyl alcohol and (F) a pH controller.This dissolved composition is effective as an ingredient for a hair germination and hair growth promoting agent.
摘要:
A scroll-type refrigerant compressor unit is provided in which any deflections and undesired vibrations of the moving parts are prevented by a simple construction and in which the orbiting scroll member is prevented from rotating by a simple mechanism. The disk rotor having the drive pin is mounted on an inner end of a drive shaft which is rotatably mounted through the front end plate of the compressor housing. The disk rotor is rotatably supported on the inner surface of the front end plate through a thrust bearing. The orbiting scroll member is rotatably mounted on the drive pin. The orbiting scroll member has a radial flange integrally formed with the scroll member, the flange is supported on the disk rotor through a thrust bearing. Therefore, the drive shaft, the disk rotor, the drive pin and the orbiting scroll member are supported without undesired deflection and vibration during operation. A ring like slider plate member is disposed between the radial flange and the end plate of the orbiting scroll member. The slider member is connected to the end plate of the orbiting scroll member by a key and keyway connection so that the relative rotation is prevented while relative movement in a radial direction is permitted. The slider plate member is also connected to a member fixed to the inner surface of the compressor housing by a key and keyway connection so that relative rotation is prevented while relative movement is permitted in a radial direction perpendicular to the relative movement between the slider member and the orbiting scroll member. The keys and keyways may be preferably formed so that the contact surfaces between mating keys and keyways for receiving rotational torque is on a diameter of the slider member.
摘要:
A leak current breaker is provided which includes a detector (10) to detect a leakage current from electric lines, a first removing unit (12) to convert the detected leakage current into a voltage and a voltage detector (14) to detect a voltage developed in electric lines A under testing, a second removing unit (16) to remove a harmonic component included in the voltage, a phase contrast detector (20) to detect a phase contrast from a signal waveform having the harmonic component removed, a frequency calculator (21) to calculate a frequency occurring on electric lines A on the basis of the signal waveform of the voltage having the harmonic component removed by the second removing unit (16), a phase angle calculator (22) to calculate a phase angle of the leakage current flowing through the electric lines A on the basis of the phase contrast and frequency, a root-mean-square value calculator (24) to calculate a root-mean-square value of the voltage having the harmonic component removed by the first removing unit (12), a calculator (27) to calculate a leakage current component Igr arising from an earth insulation resistance included in the leakage current flowing through the electric lines A on the basis of the root-mean-square value and phase angle of the leakage current, a judging unit (29) to judge whether the leakage current component Igr calculated by the calculator (27) has exceeded an arbitrary value, and a circuit breaker (30) to break the electric lines A on the basis of the judgment made by the judging unit (29).
摘要:
A sweat-absorbent sheet includes a first surface layer, a second surface layer lying on the opposite side of the first surface layer and an intermediate layer sandwiched between these two layers. Each of the first and second surface layers comprises a mixture layer of first and second hydrophobic fibers made of thermoplastic synthetic resin as main constituent and first and second hydrophilic fibers. The intermediate layer comprises third hydrophilic fibers extending into at least one of the first and second hydrophobic fibers. The first and second hydrophobic fibers are bonded to the crimped to hydrophobic composite fibers mixed in the respective layers. The first, second and third hydrophilic fibers are impregnated with antibacterial or bactericidal medicinal ingredient and such medicinal ingredient is left behind on these hydrophilic fibers after these hydrophilic fibers have been dried.
摘要:
A swash plate-type compressor includes a cylinder block, a drive shaft, a swash plate, a plurality of pistons, and a pair of shoes. The cylinder block has a plurality of cylinder bores formed therethrough. The drive shaft is rotatably supported by the cylinder block. The swash plate is mounted on the drive shaft for rotation therewith. Each of the plurality of pistons is slidably positioned within a respective one of the cylinder bores to reciprocate therein. Each of the pistons has a pair of substantially semispherical cavities formed at an end thereof. A pair of shoes is positioned between each of the pistons and the swash plate. Each shoe has a semispherical portion adapted to be positioned within one of the substantially semispherical cavities of the pistons and a flat portion slidable along a surface of the swash plate. A first concave portion is formed in the flat portion. A second concave portion is formed in the semispherical portion.
摘要:
A piston for use in a fluid displacement apparatus includes a head portion and a connecting portion. The head portion has a cylindrical shape and a hollow structure. The head portion comprises an end portion and a cylindrical portion. The end portion fixedly connected to the cylindrical portion. The connecting portion extends from an end surface of the cylindrical portion and couples the piston with a moving source. A pair of apertures are formed through the end surface of the cylindrical portion adjacent to connecting portion. A rib is formed between the pair of apertures. The strength of a circumference portion of the apertures may be increased by the rib. As a result, when the fluid displacement apparatus is operated under a high load, the occurrence of cracks at the circumference portion(s) of the aperture(s) may be reduced or eliminated.
摘要:
A fatty acid amphoteric surfactant complex obtained by mixing a) at least one imidazolinium ampholytic surfactant of the formula: wherein R1 represents an alkyl or alkenyl group having 9 to 17 carbon atoms on average; and Z is 1 or 2; with b) a higher fatty acid selected from the group consisting of oleic acid, isostearic acid and a mixture of oleic acid and isostearic acid; wherein the ratio of said higher fatty acid to the total amount of said imidazolinium ampholytic surfactant(s) in said complex ranges from about 25:75 to 90:10. The complex containing an ampholytic and/or semipolar surfactant and higher fatty acid may optionally contain a clay mineral. Said complex may be employed in making emulsions.