Abstract:
PURPOSE: To lower the power consumption of a swash plate type compressor, by forming a spherical portion on the surface of a shoe, and bringing the spherical portion of the shoe directly into sliding contact with the surface of a spherical recess formed in a piston, without interposing a ball between the shoe and the piston. CONSTITUTION: A shoe for use in a swash plate type compressor is formed with a spherical portion 15a, a flat bottom end face 15b, and a curved relief portion 15c located between the spherical portion 15a and the bottom end face 15b and having a sectional area that is decreased gradually from the spherical portion toward the bottom end face. With such an arrangement, the bottom end face 15b of the shoe is kept in sliding contact with the end face of a swash plate 5 while the sherical portion 15a is kept in sliding contact with the surface of a spherical recess 10b formed in a piston 10. Further,a hollow space 17 is formed between the shoe and the piston at the portion where the relief portion 15c faces the spherical recess 10b. COPYRIGHT: (C)1982,JPO&Japio
Abstract:
A piston is equipped with a skirt that has a sliding surface provided with an oil repellent resin layer. A solid lubricating resin layer and the oil repellent resin layer are exposed on the sliding surface. On the sliding surface, the oil repellent resin layer extends at an incline with respect to the centerline of the sliding surface in a circumferential direction of the piston.
Abstract:
A piston type compressor has a housing, a cylinder block and a piston. The cylinder block is fixed to the housing. The piston is accommodated in the cylinder block. A piston ring is provided between the cylinder block and the piston. A sealing coat is made of soft metal, and is provided between the piston ring and the piston.
Abstract:
A swashplate type compressor having a swashplate coated with a tin-cobalt alloy is provided. The alloy comprises between about 12 and 28 weight % cobalt, with the balance substantially comprising tin. The swashplate may further include an intermediate layer of about 100 weight % tin underneath the tin-cobalt alloy layer. Methods of coating a swashplate with the coatings according to the present invention are also provided.
Abstract:
A swashplate type compressor having a swashplate coated with a tin-cobalt alloy is provided. The alloy comprises between about 12 and 28 weight % cobalt, with the balance substantially comprising tin. The swashplate may further include an intermediate layer of about 100 weight % tin underneath the tin-cobalt alloy layer. Methods of coating a swashplate with the coatings according to the present invention are also provided.
Abstract:
A piston type compressor has a housing, a cylinder block and a piston. The cylinder block is fixed to the housing. The piston is accommodated in the cylinder block. A piston ring is provided between the cylinder block and the piston. A sealing coat is made of soft metal, and is provided between the piston ring and the piston.
Abstract:
A multiple chamber sample holding cartridge is used with a supercritical fluid extractor that causes membranes dividing the cartridge into chambers to rupture upon the pressurization of the sample cartridge, thereby allowing the intermixing of materials contained in the chambers. The neutral oil and loss determination of soybean and other oilseed oils by supercritical fluid extraction is efficient with this two-chambered sample cartridge.
Abstract:
An aluminum or aluminum alloy surface which during use is exposed to sliding friction is coated to provide a chemical conversion coating of tin comprising 0.2-10.0 wt. % cobalt. For example, a swash plate type compressor has a cylinder block with cylinder bores disposed parallel to the axis of the cylinder block. A rotary shaft rotatably mounted within the cylinder block carries an aluminum swash plate. The swash plate has a coating preferably between 0.8 to 2.5 microns. The coating on the swash plate permits the use of low silicon alloy aluminum without the need of metal plating or high finish polishing.
Abstract:
An automatic variable-orifice fluid restrictor for use with a supercritical extractor having a collection trap or a supercritical chromatograph includes an inlet line for fluid at a pressure above its critical pressure, an extended tubular probe having an inner and an outer surface and a proximal and a distal end. The proximal end of the probe carries an inlet connected to the inlet line and is outside of the trap. The distal end of the probe includes a variable orifice means adapted for metering the fluid. The variable orifice means is adjacent to the outer surface of the probe and is located in the midst of the trap. The variable orifice means is adjusted by an adjusting stem having first and second ends. The first end of the adjusting stem is connected to automatic control means such as a servo at the proximal end of the probe and outside of the trap. The second end of the adjusting stem varies the area of the orifice by moving a first orifice member. The stationary second orifice member cooperates with the first orifice member to form the orifice. The first orifice member moves axially when the orifice is closed and moves both axially and rotationally when the orifice is open or partially open. This cleans deposits from the orifice without damaging the orifice parts by high pressure notional physical contact.