Disclosed are a movable scroll device for a scroll compressor and a method for manufacturing same. The method includes: manufacturing the movable scroll device by means of casting steps, so that the movable scroll device includes a movable scroll end plate, with a movable scroll blade provided on a first side face of the movable scroll end plate; and a hub vertically extending outwards from the middle of a second side face of the movable scroll end plate; and fabricating at least one centroid adjustment recess on the hub. By the method, the centroid of the movable scroll device can be adjusted in a more flexible, precise, active and targeted manner.

The present invention relates to a compressor wherein, when oil is supplied to a single module, the module can mechanically/structurally supply the oil to a plurality of regions in a selective manner according to the pressure of a refrigerant, etc.

A compression device includes at least: two interleaved scrolls each of which is made of an aluminum alloy, one of the scrolls, being a fixed scroll (3), and is fixed and the other scroll, which is an orbiting scroll and moves eccentrically without rotating. Also included are anti-rotation means made of an aluminum alloy and configured to allow anti-rotation of the orbiting scroll. The compression device also includes one flat thrust bearing configured to axially contain the orbiting scroll and is made of aluminum alloys or grades of cast iron. The compression device also includes coatings for promoting friction between the fixed scroll, the orbiting scroll, the anti-rotation means and the flat thrust bearing.

A scroll compressor is provided that may include a casing configured to contain oil at a lower portion thereof; a drive motor provided at an inner space of the casing; a rotational shaft coupled to a rotor of the drive motor, and having an oil supply passage in order to guide the oil contained in the casing to an upper side; a frame provided below the drive motor; a fixed scroll provided below the frame, arid having a fixed wrap; and an orbiting scroll provided between the frame and the fixed scroll, having an orbiting wrap to form a compression chamber by being engaged with the fixed wrap, and having a rotational shaft coupling portion to couple the rotational shaft thereto in a penetrating manner. One or more oil dimples may be formed at a peripheral end surface positioned between an inner circumferential portion and an outer circumferential portion of the rotational shaft coupling portion. With such a configuration, as oil may be smoothly supplied to an end surface of the orbiting wrap near the rotational shaft coupling portion, abrasion may be prevented.

A scroll compressor is provided that may include a motor; an orbiting scroll; a fixed scroll coupled to the orbiting scroll, and forming a compression chamber together with the orbiting scroll; a frame coupled to the fixed scroll, and configured to support the orbiting scroll; a sealing member mounting groove having a ring shape, and formed on a first surface of the frame contacting the orbiting scroll, or a second surface of the orbiting scroll contacting the frame; and a sealing member including a first sealing portion formed in a ring shape, inserted into the sealing member mounting groove so as to be moveable in an axial direction, and configured to perform a sealing operation between the frame and the orbiting scroll in the axial direction and including a second sealing portion extending from the first sealing portion in the axial direction, and configured to perform a sealing operation between the frame and the orbiting scroll in a radial direction by contacting an outer side wall surface of the sealing member mounting groove A thickness of the second sealing portion in the radial direction may be smaller than a thickness of the first sealing portion in the axial direction.

A scroll compressor includes a stationary scroll; an orbiting scroll having a pair of first Oldham keyways on one surface thereof, the orbiting scroll defining a compression chamber in combination with the stationary scroll; a frame having a pair of second Oldham keyways and supporting the orbiting scroll; and an Oldham ring for inhibiting rotation of the orbiting scroll, the Oldham ring having a pair of first Oldham keys on one surface thereof and a pair of second Oldham keys on the other surface thereof, the first Oldham keys slidably engaging with the respective first Oldham keyways, the second Oldham keys slidably engaging with the respective second Oldham keyways. The Oldham ring includes at least a pair of projections on the other surface thereof, and the projections have a height such that when the Oldham ring is inclined during simple harmonic motion, one of the projections makes contact with the one surface of the orbiting scroll before each of the first Oldham keys is brought into contact with the corresponding first Oldham keyway at two locations.

A compressor is provided and may include a shell, a hub, an insert, and at least one collar. The hub may be disposed within the shell and define an axis of rotation. The hub may include an axially extending aperture. The insert may be disposed within the aperture. The at least one collar may be disposed about the hub.

A compressor may include a shell, first and second scroll members, a partition plate and a bypass valve member. The shell defines a discharge-pressure region and a suction-pressure region. The first scroll member is disposed within the shell and may include a first end plate having a discharge passage, and first and second bypass passages extending through the first end plate. The partition plate is disposed within the shell and separates the discharge-pressure region from the suction-pressure region and includes an opening in communication with the discharge-pressure region. The bypass valve member is movable between a first position restricting fluid flow through at least one of the first and second bypass passages and the opening and a second position in allowing fluid flow through the at least one of the first and second bypass passages and the opening.

A scroll compressor includes a first oil supply passage communicating with a first compression chamber formed between an inner circumferential surface of a fixed wrap and an outer circumferential surface of an orbiting wrap, and a second oil supply passage separated from the first oil supply passage and communicating with a second compression chamber formed between an outer circumferential surface of the fixed wrap and an inner circumferential surface of the orbiting wrap, wherein the first oil supply passage includes an oil supply guide portion provided in a thrust surface of the fixed scroll in contact with the orbiting scroll to define a part of the first oil supply passage, whereby communication between the first and second compression chambers can be prevented, thereby suppressing leakage between the compression chambers, stabilizing behavior of the orbiting scroll, and facilitating formation of the orbiting scroll.

A scroll-type fluid machine including: a scroll unit (4) having a fixed scroll (2) and a movable scroll (3) in which a bottom plate center (3c) and a wrap spiral center (3d) are made eccentric; and a rotation-inhibiting mechanism (30) with multiple rotating-inhibiting parts (33), each part (33) being composed of a circular hole (31) and a pin (32), wherein the rotation-inhibiting mechanism (30), a straight line A connecting the bottom plate center (3c) and the wrap spiral center (3d) is rotated on the bottom plate center by 90° in a direction opposite to a wrapping direction of the wrap (3b), a point at which the rotated straight line A intersects a pitch circle is set as a center position of one of the rotation-inhibiting parts (33), the other rotation-inhibiting parts (33) are arranged on the pitch circle at even intervals based on one of the rotation-inhibiting part (33).