Scroll compressor

A scroll compressor comprising,

• two scrolls including respective scroll wraps to form a compression chamber therebetween so that a volume of the compression chamber is decreased to compress a fluid therein by an orbital motion between the scrolls around an axis,
• a frame supporting the scrolls thereon,
• a drawing force generator for generating a drawing force urging axially one of the scrolls toward another one thereof, and
• a contacting force limiter for bearing at least a part of the drawing force to prevent the at least a part of the drawing force from being borne by a contact between the scrolls, when an axial distance between the scrolls is not more than a predetermined axial distance, wherein the contacting force limiter is fixed axially with respect to the frame and is connected to the one of the scrolls to bear the at least a part of the drawing force so that the at least a part of the drawing force is prevented from being born by the contact between the scrolls.

A scroll compressor comprising,

• two scrolls including respective scroll wraps to form a compression chamber therebetween so that a volume of the compression chamber is decreased to compress a fluid therein by an orbital motion between the scrolls around an axis,
• a frame supporting the scrolls thereon,
• a drawing force generator for generating a drawing force urging axially one of the scrolls toward another one thereof, and
• a contacting force limiter for bearing at least a part of the drawing force to prevent the at least a part of the drawing force from being borne by a contact between the scrolls, when an axial distance between the scrolls is not more than a predetermined axial distance, further comprising a creep member between the one of the scrolls and the contacting force limiter, the creep member being deformed plastically in accordance with a lapse of time by a compression force therebetween to decrease the axial distance between the scrolls in accordance with the lapse of time.

A scroll compressor comprising,

• two scrolls including respective scroll wraps to form a compression chamber therebetween so that a volume of the compression chamber is decreased to compress a fluid therein by an orbital motion between the scrolls around an axis,
• a frame supporting the scrolls thereon,
• a drawing force generator for generating a drawing force urging axially one of the scrolls toward another one thereof,
• a contacting force limiter for bearing at least a part of the drawing force to prevent the at least a part of the drawing force from being borne by a contact between the scrolls, when an axial distance between the scrolls is not more than a predetermined axial distance, and
• a creep member between the contact force limiter and the one of the scrolls.

A scroll compressor comprising,

• two scrolls including respective scroll wraps to form a compression chamber therebetween so that a volume of the compression chamber is decreased to compress a fluid therein by an orbital motion between the scrolls around an axis,
• a frame supporting the scrolls thereon,
• a drawing force generator for generating a drawing force urging axially one of the scrolls toward another one thereof, and
• a contacting force limiter for bearing at least a part of the drawing force to prevent the at least a part of the drawing force from being borne by a contact between the scrolls when an axial distance between the scrolls is not more than a predetermined axial distance, wherein the contacting force limiter prevents the axial distance between the scrolls from being less than the predetermined axial distance, and bears the substantial whole of the drawing force to prevent the drawing force from being born by the contact between the scrolls when the axial distance between the scrolls is equal to the predetermined axial distance.