摘要:
A swash plate type compressor includes a cylinder blocks having a crank case which communicates with a suction port and a plurality of bores formed therein. The ends of each bore are covered with a pair of housings. The bores communicate with discharge chambers. A drive shaft is rotatably placed within the cylinder blocks. A swash plate is rotatable in the crank case, and is mounted on the drive shaft. A plurality of pistons are drivably coupled to the swash plate, and are reciprocotable in their respective bores. As the pistons reciprocate, a refrigerant in the crank case is sucked into each bore and is compressed therein. The compressed refrigerant is discharged into the discharge chambers from the bores. A passage for transporting the refrigerant between the discharge chambers is formed along the axis of the drive shaft. Seals are provided between the cylinder blocks and the drive shaft for sealing the gap between the discharge chambers and the crank case.
摘要:
A swash plate type compressor is provided with a plurality of cylinders and a front and rear cylinder blocks having a crank case connected to a suction port. The cylinder blocks are connected to a front and rear housing sections in order to cover the cylinders. Each housing section contains a discharge chamber. A drive shaft is rotatable supported by the cylinder blocks. One end of the drive shaft is sealed within the front housing. A swash plate is mounted on the drive shaft and is rotatably disposed within the crank case. A plurality of two-head pistons engage the swash plate via a pair of shoes. The pistons move within their respective cylinders in cooperation with the swash plate. The refrigerant is sucked into each cylinder via a suction passage, and is then compressed therein. The refrigerant is discharged into the external refrigerating circuit through the front and rear discharge chambers, .and the front and rear discharge ports. A discharge passage is provided within the drive shaft, and interconnects the front and rear discharge chambers. A valve is provided at one end of the discharge passage to control the opening of the discharge port in relation to the pressure difference between the front and rear discharge chambers.
摘要:
A carbon black-graft polymer, produced by causing a polymer possessing within the molecular unit thereof at least one reactive group selected from the class consisting of aziridine group, oxazoline group. N-hydroxyalkylamide group, epoxy group, and thioepoxy group to react with carbon balck. The polymer can be used as a toner for electrostatically charged image, resin composition, coating composition, ink for thermographic transer, coating gent for magnetic recording medium, rubber composition, and carbon black dispersion and the like.
摘要:
A multi-piston swash plate type compressor for an air-conditioning system used in a vehicle such as an automobile, the compressor having combined cylinder blocks closed, at both axial end faces thereof, by front and rear housings each having a radially inner suction chamber and an outer discharge chamber isolated from the suction chamber, valve plates interposed between the axial end faces of the combined cylinder blocks and the front and rear housings, respectively, a plurality of elongated screw bolts axially and hermetically assembling the combined cylinder blocks, the front and rear housings and the valve plates, and an internal sealing and guiding unit arrnaged in the suction chambers of the front and rear housings for rigidly holding the valve plates against a high pressure of a refrigerant after compression, to reinforce the hermetic seal between the axial end faces of the combined cylinder blocks and the valve plates, and for guiding refrigerant flows within the suction chamber to provide a uniform distribution of the refrigerant to cylinder bores formed in the combined cylinder blocks.
摘要:
A shoe-and-socket joint, which is incorporated into a swash plate type compressor as a drive force transmitting unit arranged between a rotatable swash plate and each of a plurality of reciprocal pistons, has a shoe provided with a spherically formed contact face having a radius R2 and a spherically formed socket recessed in each of the pistons and having a radius R1, the radius R1 being 20 to 150 microns larger than the radius R2, to provide a clearance between the shoe surface and the surface of the socket into which an oil-containing refrigerant can flow to lubricate the shoe surface and the surface of the socket.
摘要:
In the present compressor, a retainer is prevented from being deformed without impairing the sealing performance of a metal gasket provided between a covering member for closing a compression chamber of a cylinder block assembly and a discharge valve forming plate. A discharge valve forming plate is provided between a valve plate having at least one discharge port through which a fluid compressed in a compression chamber of a cylinder block assembly is discharged into a discharge chamber of a housing and the cylinder block assembly. A retainer for restricting the magnitude of opening of a discharge valve is integrally formed in a metal gasket which is provided between the discharge valve forming plate and the housing. The housing is provided with a restricting section at a position corresponding to a proximal portion of a rising portion of the retainer for restricting the proximal portion of the top surface of a rising portion.
摘要:
Carbon black graft polymer which comprises carbon black and a polymer chain grafted thereto, the carbon black having a specific surface area of not more than 120 m2/g.
摘要:
An electrostatic image developer which has an improved charge retaining ratio is disclosed. The developer comprises toner particles comprising (a) a binding resin and (b) a coloring agent and having a mean particle diameter of not more than 25 &mgr;m, and (c) organic-inorganic composite particles attached or fixed to the surface or the proximity of surface of said toner particles. The composite particle contains an organic polymer framework and a polysiloxane framework, the polysiloxane framework having in the molecule thereof an organosilicon which has a silicon atom to which at least one carbon atom in said organic polymer framework combined directly, the organic-inorganic composite particles having SiO2 as a component of said polysiloxane framework at a content in the range of 10 to 90% by weight. The composite particles have a mean particle diameter in the range of 0.01 to 5 &mgr;m. The mixing ratio of (b) the coloring agent to (a) the binding resin in the toner particles in 20 to 2 parts by weight of (b) to 80 to 98 parts by weight of (a), as the total amount of (a) and (b) is 100 parts. The mixing ratio of the organic-inorganic composite particles to the toner particles is 0.01 to 20 parts by weight of the composite particles to 100 parts by weight of the toner particles.
摘要:
A swash plate type compressor that provides long lasting high lubricating performance to the sliding contact surfaces of a swash plate and shoes. The surface of the swash plate or the shoes on which the swash plate comes in sliding contact with the shoes is provided with an alloy plating layer, in which tin is the main component, as a surface treating layer. A coating layer, in which molybdenum disulfide is the main component, is formed as a solid lubricant layer on the foregoing plating layer. Preferably, the swash plate is made of aluminum or an aluminum alloy, and its surface is provided with the plating layer and the coating layer. More preferably, the coating layer contains graphite.
摘要:
The invention is related to a swash plate compressor in which the wear resistance and the lubricating ability of the surfaces of the swash plate which are in contact with the shoes can be enhanced and maintained for a long period of time. In the swash plate compressor, a soft surface coating 21 is formed on sliding surfaces of any of a swash plate or shoes and the coarseness at ten point mean roughness of the surface of the substrate is made to be 8 &mgr;mRz or less, and preferably 5 &mgr;mRz or less, and more preferably 3 &mgr;mRz or less. Even if the soft surface coating 21 is partially worn or exfoliated by a sliding load, since the temperature of the soft surface coating 21 is increased by frictional heat and the soft surface coating 21 is fluidized, the worn or exfoliated portions are repaired. The soft surface coating 21 is preferably composed of a coating layer containing molybdenum disulfide.