Abstract: A scroll compressor to compress fluid in a compression chamber formed by combining a scroll wrap of a fixed scroll and a scroll wrap of an orbiting scroll, the scroll wrap of the fixed scroll and the scroll wrap of the orbiting scroll each having a scroll inner end part having a bulb shape defined by an outer surface involute curve, an inner surface involute curve, and a plurality of arcs connecting an end of the outer surface involute curve and an end of the inner surface involute curve, at least one of the scroll inner end parts being formed in an n-tier stair-like shape in which n (n?3) number of bulb shapes are stacked on top of one another in an upright direction of the scroll wrap, the scroll compressor being configured to satisfy ?os (0)>?os (1)>?os (2)> . . . >?os (n?1) where involute roll angles of the outer surface involute curve in tiers of the stair-like shape of the scroll inner end part are ?os (0), ?os (1), ?os (2), . . .

Abstract: A scroll compressor to compress fluid in a compression chamber formed by combining a scroll wrap of a fixed scroll and a scroll wrap of an orbiting scroll, the scroll wrap of the fixed scroll and the scroll wrap of the orbiting scroll each having a scroll inner end part having a bulb shape defined by an outer surface involute curve, an inner surface involute curve, and a plurality of arcs connecting an end of the outer surface involute curve and an end of the inner surface involute curve, at least one of the scroll inner end parts being formed in an n-tier stair-like shape in which n?3) number of bulb shapes are stacked on top of one another in an upright direction of the scroll wrap, the scroll compressor being configured to satisfy ?os(0)>?os(1)>?os(2)> . . . >?os(n?1) where involute roll angles of the outer surface involute curve in tiers of the stair-like shape of the scroll inner end part are ?os(0), ?os(1), ?os(2), . . . , ?os(n?1), respectively, from a wrap tip side to a wrap root side.

Abstract: A scroll compressor is provided which has favorable assembling property, does not require a thrust bearing, has a bearing structure for bearing a compression section at both sides thereof and has a simple structure of a scroll.

Abstract: A scroll compressor includes a compression section having an orbiting scroll with volutes that are substantially symmetrically formed on both surfaces of an orbiting base plate. A main shaft penetrates through and is fixed to a center portion of the base plate. A pair of fixed scrolls is placed on both surfaces of the orbiting scroll, and has volutes which correspond to the respective volutes of the orbiting scroll to form compression chambers. The main shaft has a notch part which is formed at a portion penetrating through the orbiting scroll and fixed scrolls. A slider is provided which has an eccentric hole including a flat slide surface corresponding to the notch part. The slider is fitted to the main shaft where the notch part is formed. The slider is made slidable in a direction orthogonal to a length direction of the main shaft by the flat slide surface.

Abstract: A scroll compressor that has reduced leakage loss and high efficiency includes an orbiting scroll that has spiral teeth on two surfaces, and a fixed scrolls that face the surfaces of the orbiting scroll and that have spiral teeth that intermesh with the spiral of the orbiting scroll. Tip seals are mounted only to a spiral tooth of one of the fixed scrolls that intermeshes with a spiral tooth of the orbiting scroll and a spiral tooth of the orbiting scroll.

Abstract: A scroll compressor is provided which has favorable assembling property, does not require a thrust bearing, has a bearing structure for bearing a compression section at both sides thereof and has a simple structure of a scroll.

Abstract: A scroll compressor is provided which has favorable assembling property, does not require a thrust bearing, has a bearing structure for bearing a compression section at both sides thereof and has a simple structure of a scroll.

Abstract: A scroll compressor is provided which has favorable assembling property, does not require a thrust bearing, has a bearing structure for bearing a compression section at both sides thereof and has a simple structure of a scroll.

Abstract: A scroll compressor is provided which has favorable assembling property, does not require a thrust bearing, has a bearing structure for bearing a compression section at both sides thereof and has a simple structure of a scroll.

Abstract: The present invention provides a scroll compressor that has reduced leakage loss and high efficiency. In the present invention, an orbiting scroll 31 that has spiral teeth 31L and 31M on two surfaces, and a fixed scrolls 33 and 34 that are installed so as to face the surfaces of the orbiting scroll 31 and that have spiral teeth 33E and 34E that intermesh with the spiral teeth 31L and 31M of the orbiting scroll 31 are included, and tip seals are mounted only to a spiral tooth of the fixed scroll that intermeshes with a first spiral tooth of the orbiting scroll 31 and to the first spiral tooth of the orbiting scroll 31.

Abstract: A high-performance and high-reliability scroll compressor which prevents seal property failure at seal necessary points, tooth tip contact, abnormal wear of an elastic body, fatigue failure, etc. A radially outward peripheral projection (4c) is formed on the full outer peripheral surface of a separation plate (4). The peripheral projection (4c) is set to an outer diameter reduced, relative to the inner diameter of the shell main body (9) before a shell lid (20) is sealed by welding, etc., by the dimension corresponding to the shrinkage amount of a shell main body (9). That is, before welding, a minute gap occurs between the outer peripheral surface of the peripheral projections (4c) and the inner peripheral surface of the shell main body (9). Then, the separation plate (4) is inserted into the shell main body (9) and further the separation plate (4) and a frame (3) are fixed.

Abstract: A scroll compressor features a pair of a fixed scroll and an orbiting scroll for forming a compression chamber; an orbiting bearing provided on the counter-compression chamber side of the orbiting scroll; a slider fitted to a slider fitting shaft at one end of a main shaft in such a way that the slider is slidable within a surface perpendicular to the axis of the main shaft, the slider being fitted in the orbiting bearing, a sliding direction of the slider is inclined toward the eccentric direction of the orbiting scroll by a predetermined amount in the rotational direction of the main shaft, in which a recess is provided on the groove end side in the eccentric direction of the slider. Further an elastic member is inserted in the recess between the groove end side in the eccentric direction and the slider fitting shaft while both ends of the plate are supported with respect to the recess.