Abstract:
Shoes for operatively connecting a swash-plate with the compression pistons of a swash-plate type compressor are made from a novel Cu-based alloy. Improved shoes are characterized by a combination of high heat conductivity and excellent wear resistance properties particularly when subjected to a lubricating condition so severe that no lubricating oil is supplied to the surface of the shoes at the initial period of the compressor operation. At least three alloying elements are selected from Mn, Si, Pb, Sn, the IVb and VIb groups of the periodic table, and added in predetermined amounts to the Cu-based alloy, so that the properties mentioned above are simultaneously obtained. The compressor according to the present invention can be reliably employed, without the occurrence of seizure over a long operational period for air-conditioning vehicles, in which the sliding condition of the shoes is drastically varied with the rotation of the engine.
Abstract:
A swash plate type compressor for compressing a refrigerant of an air conditioning system incorporating therein a rotating swash plate made of an aluminum alloy, one or more compressor pistons reciprocating in a cylinder block for effecting compression of the refrigerant, and an operative engagement means which is between the swash plate and the piston or pistons. The operative engagement means is made of a carbon steel material and a flattened face of the operative engagement means contacting the aluminum alloy swash plate consisting of a cementation treatment layer formed in the carbon steel material of the operative engagement means.
Abstract:
A vehicle air conditioning compressor which is driven by e.g., the prime mover of the vehicle as required to cool the passenger compartment comprises a swash plate mounted on a rotatable shaft and a plurality of pistons, each being reciprocated by the rotating swash plate via a set of a ball and a shoe rotatably engaging with each other, wherein said compressor is provided for each piston with a shoe composed of a steel backing plate having a sintered porous layer integrally formed thereon of a powdered copper alloy comprising 2.5 - 12.1 wt.% Sn, 7.0 - 25.0 wt.% Pb and the balance being substantially copper, in a critical thickness ranging from 0.1 mm to 0.5 mm.
Abstract:
A conveyor roller and support assembly for conveying and guiding a belt or the like along a predetermined path of travel. Means are provided by which a roller can be conveniently relocated or removed from the system which includes a pluraltty of fingers extending from the body of the roller terminating in an inwardly turn lip capable of being seated within any one of a number of complementary grooves formed in the roller support member.
Abstract:
A fastening member and a gas compressor are provided to prevent leakage by fastening a bolt coated with zincate bath to a gasket coated with tin. A fastening member has a bolt(71) and a copper gasket(72). The bolt is coated by zincate bath, where the hardness of the coating is 100~140. The copper gasket is coated with tin and fastened to the bolt. A gas compressor has a housing(10) and a compressor body(60). A case(11) and a front head(12) of the housing are coupled to each other by a first fastening member. The compressor body is coupled to the housing by a second fastening member to compress gas.
Abstract:
본 발명에 따른 슬라이딩 피막은 고체 윤활제, 바인더 수지 그리고 저융점 재료를 함유한다. 상기 바인더 수지는 고체 윤활제를 기재(基材)의 표면 위에 유지하기 위한 것으로 유리전이온도를 가진다. 상기 저융점 재료는 상기 바인더 수지의 유리전이온도보다 낮은 융점을 가진다. 상기 저융점 재료는 슬라이딩 부재들 사이에 발생되는 마찰열을 흡수할 수 있는 잠열을 가짐으로 바인더 수지의 열화(劣化)를 지연시킨다. 결과적으로, 상기 슬라이딩 피막은 높은 내눌러붙음성을 만들어낸다.
Abstract:
한쪽편압축식사판콤프레서에 사용되는 철계 또는 알루미늄계 재료의 압축쪽의 슬라이딩성능을 높이기위하여, 40%이하의 납, 30%이하의 주석, 0.5%이하의 인, 15%이하의 알루미늄, 10%이하의 은, 5%이하의 규소, 5%이하의 망간, 5%이하의 크롬, 20%이하의 니켈 및 30%이하의 아연으로 이루어지는 군으로부터 선택된 1종 또는 2종이상을, 0.5∼50%의 범위로 함유하고, 나머지부가 실질적으로 구리 및 불순물로 이루어진 구리계합금의 용사층을, 압축실쪽의 적어도 슈우(15b)와의 사판(14)슬라이딩면에 형성하고, 또한 압축실반대쪽의 적어도 슈우(15a)와의 사판(14)면에, 전해도금, 무전해도금, 윤활제의 피복, 인산염화성처리 또는 경화처리를 실시한다.
Abstract:
사판식 컴푸레셔의 사판은 건조 조건하에서 눌러붙음 저항과 마모저항이 우수하여야 한다. 이에 본 발명에 따른 사판(14)은 동, 주석, 또는 금속성의 인산염으로 구성된 중간층(7)과,열가소성 수지와 황화 몰리브덴(MoS 2 ) 또는 흑연으로 구성된 슬라이딩 접촉층(8)과 같은 표면처리층을 형성한 것이다.