摘要:
A self-rotation blocking mechanism in a scroll compressor having a movable scroll member and fixed scroll member fixed to a casing. The mechanism is constructed of circumferentially spaced opposing pairs of pins 9 and 10, which are connected to an end plate 12 of the movable scroll member 2 and a faced end wall of the casing 4, respectively, and which are in a side-by-side contacting relationship. The circumferential arrangement of the pins is such that, at every angular position of the movable scroll member, there exists at least one pair of the pins which generates a force in a direction opposite to a self-rotating torque applied to the movable scroll member caused by the compression reaction force. A locally concentrated arrangement of the pairs of the pins for generating such a force can be employed at the angular position which produces a larger value of self-rotating torque. Furthermore, the diameters of the pins are such that one half of the sum of the diameters is equal to or smaller than the radius of the orbital movement of the movable scroll member.
摘要:
A swing member is supported by a swing support member like a universal joint of a Hook's type such that it can swing in a state where it is prevented from rotating around a center line. In this manner, even if a shaft rotates at high speed, the swing member is surely prevented from rotating around the shaft. Therefore, it is possible to prevent a piston from excessively vibrating, hence to prevent large noises from being made, and to improve reliability and durability of a compressor when the compressor is operated at high speed.
摘要:
A scroll type compressor providing an intake groove of communicating an intake port of a fluid to be compressed such as a refrigerant and a sliding contact part of a rotation prevention mechanism in either one of the end surfaces of the front housing and the end plate of the rotor which are opposite to each other so as to enhance the reliability by reliably lubricating the sliding parts such as the rotation prevention mechanism of the scroll rotor, making the fluid to be compressed be taken into the compression portion through the intake groove, and supplying the lubricant contained in the fluid to be compressed to the sliding part such as the rotation prevention mechanism.
摘要:
A variable displacement compressor includes a linking groove, which forms a hinge for connecting an arm and an inclining member. The groove is generally U-shaped (open). A link pin is fitted in the groove such that the link pin can pivot or slide within the groove. As a result, installation of a movable parts assembly, which is done by inserting the link pin into the groove, is easier. A controlled pressure chamber improves the response of the compressor to controls.
摘要:
A scroll type compressor includes a stationary scroll element, a movable scroll element orbiting about a given axis and cooperating with the stationary scroll element for compressing a fluid in a compression chamber defined between the two scroll elements, and a rotation preventing unit for preventing rotation of the movable scroll element about its own axis. The rotation preventing unit has at least a plurality of pairs of scroll side pins mounted on the movable scroll element and housing side pins mounted on a housing of the compressor. When the compression chamber has a reduced volume of 10 through 22% of an initial volume thereof immediately after completion of sucking of the fluid, at least two of the plurality of scroll side pins are arranged to be symmetrical with one another with respect to a line L.sub.2 which passes through a rotating center O.sub.R of the movable scroll element and is perpendicular to a different line L.sub.1 which passes through the rotating center O.sub.R of the movable scroll element and an orbiting center O.sub.S of the movable scroll element. The two scroll side pins are also arranged on a leading side to the cooperating housing side pins, respectively, in a direction corresponding to a direction of rotation of the movable scroll element about the rotating center O.sub.R.
摘要:
A scroll type compressor having a housing unit in which a movable scroll element and a stationary scroll element are received in such a relationship that the movable scroll element orbits about the center of the stationary scroll element. The scroll type compressor further having a mechanical reinforced rotation preventing unit for preventing rotation of the movable scroll element about its own axis, and the rotation preventing unit having first stationary pin fixed to an inner end face of the housing unit and second movable pin fixed to an end face of a base plate of the movable scroll element, and a ring engaged with the first and second rings. A thickness T1 between the outer circumference of the first pin and the inner edge of the inner end face of the housing unit is set to be equal to or larger than 2.4 mm. A thickness T2 between the outer circumference of the second pin and the outer circumference of the base plate of the movable scroll element is set to be equal to or larger than 2.7 mm. A radial wall thickness T3 of the ring between the outer and inner cylindrical surfaces thereof is set to be equal to or larger than 1.7 mm.
摘要:
A scroll-type compressor for realizing the operating condition of complete 0% capacity without using an electromagnetic clutch. In order to minimize the power loss, a compliance crankshaft mechanism for allowing the orbiting radius of the movable scroll member to change steplessly to zero is interposed between a shaft and a scroll member. A guide hole having an inclined surface such as a two-step conical surface is formed at the end plate of the movable scroll member. A plunger adapted to engage by advancing toward and retracting from the guide hole is supported on a housing. When the plunger is advanced into the guide hole under the control of a control operation device including a control pressure chamber and a control valve, the movable scroll member moves radially, so that the amount of eccentricity and the orbiting radius thereof are reduced to achieve the 0% capacity.
摘要:
Downsizing a piston stroke dimension in a compressor that reciprocates pistons is accomplished by changing a radial directional component of a shaft of a motion that is transferred to a link from a revolving member revolved by the shaft when transferred to the link attached to the pistons. Thereby, when the revolving member, driven by a shaft, revolves once, a center of a sliding pin appears to reciprocate once in a vertical direction as it goes back and forth on both sides interposing a piston axial line. Thus, when the revolving member revolves once, the piston reciprocates twice in a cylinder bore in a direction parallel to the longitudinal direction of the driving shaft.
摘要:
A scroll type compressor comprises a housing and a fixed scroll. A movable scroll is incorporated therebetween, eccentrically engaging with the fixed scroll, and has a rotating center and a revolving center. Pin members are arranged on the end plate of the movable scroll and on the housing. At least one of the pin members of the movable scroll is positioned on a first line and disposed downstream of the corresponding pin member of the housing in the rotating direction, when the volume ratio of a compression chamber is from 10 to 22 percent of the volume of the compression chamber at the time of the conclusion of the suction of medium. The first line passes through the rotating center and is perpendicular to a second line, which passes through the rotating and revolving centers. The compressor also has annular ring members, which contact at least a pair of the pin members of the movable scroll and the housing, to prevent the movable scroll from rotating.
摘要:
A scroll type compressor using a crank mechanism having enough freedom so that an amount of eccentricity of the movable scroll member becomes variable. An elastic body is inserted between the facing surfaces striking each other in the inside of the crank mechanism so as to prevent generation of a noise due to the collision of the parts when starting up or shutting down the compressor.