Abstract:
A multi-layer sliding part has a Cu-plated solid lubricant uniformly dispersed in the matrix of a sintered bronze powder. The sintered alloy layer is densified by pressing, and the surface of the bearing alloy layer is coated with a resin having sliding properties. In a method of manufacturing a multi-layer sliding part, a mixture of a bronze powder and a Cu-plated solid lubricant are initially sintered, and the initially sintered mass is pulverized. The pulverized powder is sintered on both sides of a backing plate. After sintering of the pulverized powder on both sides of the backing plate to form bearing alloy layers, the bearing alloy layers are pressed and densified. After densification, the bearing alloy layers are annealed, again pressed, and then coated with a resin having sliding properties.
Abstract:
A swash plate type compressor (10) having a cylinder block (12, 14) with cylinder bores (18) disposed parallel to the axis of the cylinder block. A rotary shaft (22) rotatably mounted within the cylinder block carries an aluminium swash plate (20). The swash plate (20) is fixed in the rotary shaft (22) and has two facial surfaces (26) and an end surface (28). The swash plate (20) has a coating layer of at least 0.2 wt.% cobalt and the balance being tin. A piston (16) reciprocally fitted within the cylinder bore (18) contains shoes (24) which slideably intervene between the piston (16) and the swash plate facial surfaces (26). The shoes (24) transfer the rotational motion of the swash plate (20) to the linear motion of the piston (16). The coated surfaces (26) of the swash plate (20) are in slidable contact with the shoes (24). The coating on the swash plate (20) permits the use of low silicon alloy aluminium without the need of metal plating or high finish polishing.
Abstract:
A compressor for use with an HFC refrigerant, comprising:
a sealed casing; a motor housed within the sealed casing; compression machinery also housed within the sealed casing, the compression machinery including at least first and second sliding members at least one of which has a material density ratio of at least 95%; and an at least tetravalent ester oil for the refrigerating machine oil which lubricates the sliding members of the compressor.
Abstract:
A compressor for use with an HFC refrigerant, comprising:
a sealed casing; a motor housed within the sealed casing; compression machinery also housed within the sealed casing, the compression machinery including at least first and second sliding members, one of the sliding members being made of a material having a surface hardness of at least HV 1000 after the sliding surface has been nitride treated, and the other sliding material being made of cast iron containing Mo - Ni - Cr; and an at least tetravalent ester oil for the refrigerating machine oil which lubricates the sliding members of the compressor.
Abstract:
A swash plate type compressor (10) having a cylinder block (12, 14) with cylinder bores (18) disposed parallel to the axis of the cylinder block. A rotary shaft (22) rotatably mounted within the cylinder block carries an aluminium swash plate (20). The swash plate (20) is fixed in the rotary shaft (22) and has two facial surfaces (26) and an end surface (28). The swash plate (20) has a coating layer of at least 0.2 wt.% cobalt and the balance being tin. A piston (16) reciprocally fitted within the cylinder bore (18) contains shoes (24) which slideably intervene between the piston (16) and the swash plate facial surfaces (26). The shoes (24) transfer the rotational motion of the swash plate (20) to the linear motion of the piston (16). The coated surfaces (26) of the swash plate (20) are in slidable contact with the shoes (24). The coating on the swash plate (20) permits the use of low silicon alloy aluminium without the need of metal plating or high finish polishing.
Abstract:
A swash plate of a swash-plate compressor is subjected to sliding on shoes (19) and is required to have excellent seizure resistance and wear resistance under the dry lubricating condition. The swash plate (14) according to the present invention is provided with the surface-treated layer, i.e., the intermediate layer (7) consisiting of Cu, Sn or metal phosphate, and a sliding contact layer (8) consisting of MoS 2 and/or graphite and thermosetting resin.
Abstract:
To supply supercritical fluid to an automatic supercritical fluid extractor and collect extract from the extractor, sample holding cartridges (30A) are lifted one by one in series by an elevator plug into a pressure chamber (24A). An inlet at the top of the cartridge (30A) engages a pressure vessel inlet for the extractant so that extractant flows into the cartridge (30A) and into the space between the cartridge and inner walls of the pressure chamber (24A). The outlets from the cartridge (30A) and pressure vessel communicate with the collector (408) and exhaust through passageways in the plug. The plug has cleaning ports for cleaning seals and the outlet from the cartridge (30A) flows past the seals. The collector (408) lifts vials into place and can precool the collection solvent, and later as part of the collection procedure, heat and pressurize the collector (408).