Abstract:
본 발명은 압축기 슬라이딩부의 내마모성을 향상시키고 장기간 안정된 운전을 보증할 수 있고, HFC 냉매하에서 사용가능한 밀폐형 압축기에 관한 것으로, 밀폐케이스(11)내에 전동기(12)와 압축기계(14)를 수용하고 이 압축기계(13)에서 압축되는 냉매에 HFC 냉매를 사용한 밀폐형 압축기(10)에 있어서 상기 압축기의 슬라이딩부를 윤활하는 냉동기유(30)에 4가 이상의 에스테르유를 사용하고 상기 압축기 슬라이딩부로를 구성하는 한쪽의 슬라이딩부재로는 알루미늄을 모재로하여 표면을 알루마이트처리한 것을, 다른쪽의 슬라이딩부재에 탄소강등의 금속재료를 각각 사용한 것을 특징으로 한다.
Abstract:
The present disclosure provides a compressor and an air conditioner. The compressor includes a housing; a first rotating shaft mounted in the housing; a connecting assembly sleeved on the first rotating shaft; and a first rotor assembly including a first rotor and a second rotor coaxially disposed on the connecting assembly. The connecting assembly carries the first rotor and the second rotor to rotate about the first rotating shaft together. The connecting assembly is configured to limit the relative positions of the first rotor and the second rotor, such that there exists a clearance between the first rotor and the second rotor. The present disclosure can maintain a clearance between the first rotor and the second rotor without increasing the number of components of the compressor.
Abstract:
A spur-gear type fuel pump for vehicles is disclosed having a pair of interengaged gears contacting an interior surface of a pump body cavity for capturing fuel between teeth of the gears and the interior surface. The gears have a concentrically ground face that is flush against and slides over the interior surface to generally prevent or restrict fuel bleed or leakage across the interface and from between the teeth of the gears.
Abstract:
A piston for use in an engine. The piston includes a piston head having at least one ring groove. The piston also includes a piston skirt coated with a first thickness of a bronze coating material, and a side panel adjacent the piston skirt that is coated with a second thickness of the bronze coating material. The first and second thicknesses of the bronze coating material are different. In some embodiments, the bronze coating material also includes aluminum.
Abstract:
A piston for use in an engine. The piston includes a piston head having at least one ring groove. The piston also includes a piston skirt coated with a first thickness of a bronze coating material, and a side panel adjacent the piston skirt that is coated with a second thickness of the bronze coating material. The first and second thicknesses of the bronze coating material are different. In some embodiments, the bronze coating material also includes aluminum.
Abstract:
An engine/pump having a crank shaft with a shaft axis and a crank axis oblique to the shaft axis which intersect with each other. Piston/cylinder assemblies rotate about the shaft axis and have a reciprocal axis between its top dead center and bottom dead center. The reciprocal axis midway between TDC and BDC being normal to a line projected from the intersection of the shaft axis and the crank axis. A cylinder head holds the cylinders in an array. The head includes at least one port per cylinder, and a port relative to which the cylinder head moves sealably to allow timed to the reciprocal movement of each piston in its cylinder and the rotational position, the opening and closing of each cylinder. Each cylinder is indexed at a predetermined rate to the relative rotation of the crankshaft through gearing.
Abstract:
A swash plate type variable-capacity compressor (3) includes a piston (23) with a piston rod (53) and a piston driving mechanism, the piston driving mechanism comprising a drive shaft (5), a swash plate (59) inclined and hinged with the drive shaft (5) to be rotatable together with the drive shaft (5) but being swingable on the drive shaft (5), and sliding shoes (79, 81) coupling the swash plate (59) to the piston rod (51) so as to reciprocate the piston (23) by rotation of the swash plate (59). In the compressor (3), the swash plate (59) is made of a copper alloy. Preferably, the copper alloy is at least one alloy selected from the group consisting of a high-strength brass alloy, a bronze alloy, and a lead-bronze alloy.
Abstract:
There is described a piston for an axial piston machine with which the skirt surface (12) of the piston shaft (15) has, at its forward end region (Y) which transforms into the piston end face (11) and/or at its rear end region (X) lying towards the piston head, a bevel (16; 18; 19; 21) with continuously varied radiuses of curvature.
Abstract:
A slant plate type compressor with a variable displacement mechanism is disclosed. The compressor includes a compressor housing having a cylinder block provided with a plurality of cylinders and a crank chamber. A piston is slidably fitted within each of the cylinders and is reciprocated by a drive mechanism. The drive mechanism includes a drive shaft rotatably supported by the compressor housing, a cam rotor fixed on the drive shaft, and a slant plate having a surface with an adjustable incline angle. The incline angle is varied in accordance with the pressure in the crank chamber. A wobble plate is disposed adjacent the slant plate to convert the rotating motion of the drive shaft, the rotor, and the slant plate into the reciprocating motion of the pistons which are coupled to the wobble plate through corresponding connecting rods. A hinged joint mechanism hingedly connects an arm portion of the slant plate to an arm portion of the rotor to permit variations in the incline angle of the slant plate. An abrasion preventing mechanism formed of a metal is disposed between the arm portion of the cam rotor and the arm portion of the slant plate to effectively reduce abnormal abrasion on the frictional surface of the arm portion of the rotor.