Abstract:
스크롤형 압축기의 고정 및 가동의 스크롤의 한쪽에 형성한 도금층의 내박리성 및 내 마모성을 향상하는 일이 가능한 스크롤형 압축기를 제공하는 것이다. 알루미늄 합금제의 가동 스크롤(7)의 기본재 표면에 대하여 그 기본재와 밀착성이 우수한 니켈.인(Ni,P) 합금으로 되는 내측 도금층(18)을 형성한다. 그 내측 도금층(18)의 표면에 대하여 그 도금층(18)과 밀착성이 우수한 위에 도금층 보다 경도가 큰 니켈.붕소(Ni.B) 합금으로 되는 외측 도금층(19)을 형성한다.
Abstract:
Es wird ein germaniumhaltiges nickelbasiertes Lot vorgeschlagen, das eine ähnliche Zusammensetzung wie eine nickelbasierte Superlegierung aufweist, wodurch der Anteil an y'-Bildnern um Lot reduziert werden kann.
Abstract:
A variable capacity swash plate compressor includes a cylinder block (1) having a central through hole and at least one cylinder bore (6) formed about the central through hole, a drive shaft (5) rotatably arranged in the central through hole, a rotary member (40) rigidly fitted on the drive shaft (5) for rotation in unison therewith, a swash plate (10, 110) slidably and tiltably fitted on the drive shaft (5), the swash plate (10, 110) having a sliding surface (10 a , 10 c ), a linkage (41) connecting the rotary member (40) and the swash plate (10, 110) such that the swash plate (10, 110) rotates in unison with the rotary member (40) as the rotary member (40) rotates, at least one shoe (50, 150) arranged to perform relative rotation on the sliding surface (10 a , 10 c ) of the swash plate (10, 110) with respect thereto, and at least one piston (7, 107) connected to the swash plate (10, 110) via a corresponding one of the at least one shoe (50, 150), the or each piston (7, 107) being reciprocable within a corresponding one of the at least one cylinder bore (6) as the swash plate (10, 110) rotates. The swash plate (10, 110) has a protruding portion (10 e ) formed thereon, which protruding portion (10e) forms a component part of the linkage (41). The swash plate (10, 110) including the protruding portion (10 e ) is subjected to surface treatment by gas sulphonitriding or electroless nickel-phosphorus-boron plating.
Abstract:
In order to increase the anti-seizing properties of a swash plate which is a sliding component of a swash plate type compressor, a copper alloy is sprayed onto the swash plate and the following texture/composition controls are performed as required: (a) to produce a mixed texture of a dissolved texture into which atomized bronze powder is dissolved during spraying and an atomized texture into which the same bronze powder is not dissolved, (b) to add no or a small amount of Pb to the dissolved texture, (c) to add Sn, P, Al, Ag, Si, Mn, Cr, Ni, Zn, Pb and/or Bi to copper, (d) to add a hard material to a copper alloy, and (e) to form an intermediate layer comprising an Ni alloy or the like between the sprayed layer and a substrate.
Abstract:
A refrigerant compressor having a drive shaft rotatable to cause compression of a refrigerant gas, and a drive power transmission unit for transmitting a drive power from an external drive power source to the drive shaft, the drive power transmission unit having a pulley freely rotatably mounted around the drive shaft, a power transmitting element fixed to the drive shaft, and a shock absorbent rubber element arranged between the pulley and the power transmitting element for providing a positive engagement between the rubber element and the pulley, and between the rubber element and the power transmitting element. The shock absorbent rubber element absorbs a change in a load torque applied to the compressor before the torque change is transmitted to the external drive power source via the pulley, and disengages from at least one of the pulley and the power transmitting element when an excessive load torque is applied to the compressor to interrupt transmission of the excessive load torque from the compressor to the external drive power source.
Abstract:
In order to enhance the seizure resistance of a swash plate, which is the sliding part of a swash-plate type compressor, copper alloy is flame-sprayed on the swash plate. Depending upon the necessity, the following control of structure/composition: (a) a mixed structure is provided such that atomized bronze powder, which is melted during flame spraying, and an unmelted atomized structure are mixed; (b) Pb is not contained or contained slightly in the melted structure: (c) Sn, P, Al, Ag, Si, Mn, Cr, Ni, Zn, Pb and/or Bi is added to the copper; (d) hard matters are added to copper alloy; and, (e) an intermediate layer of Ni or the like is formed between the flame-sprayed layer and the substrate, is carried out.