Patent ID: 6062834
Filing Date: 2000-05-16
Classification: F04C,F04D,F16J

Abstract:
A scroll compressor comprising:a fixed scroll formed with plate-like spiral teeth on one side of a bed plate;an orbiting scroll formed with plate-like spiral teeth on one side of a bed plate for defining a compression space in combination with the plate-like spiral teeth of said fixed scroll, said orbiting scroll being formed with an engagement part that is engaged with a main shaft receiving a driving force and that is located on an opposite side of the bed plate, said orbiting scroll making an orbiting motion relative to said fixed scroll;a frame fixedly secured to a closed vessel for supporting said orbiting scroll in an axial direction and the main shaft in a radial direction;a stationary member fixedly secured to said frame in a peripheral part thereof and placed facing the bed plate of said fixed scroll on an opposite side to the plate-like spiral teeth; andaxial compliant means for permitting an axial motion of said fixed scroll,wherein a clearance is provided between the bed plate of said fixed scroll and said stationary member so that a high-pressure compression gas is introduced into a high-pressure chamber surrounded by an inner seal member between two radial surfaces within said clearance and an intermediate-pressure compression gas is introduced into an intermediate-pressure chamber surrounded by said inner seal member and an outer seal member between two radial surfaces within said clearance, to thereby press said fixed scroll against said orbiting scroll under pressure of the compression gases,wherein a recess communicating with the compression space is provided at a center of said stationary member,wherein a muffler is attached so as to surround said recess, andwherein a discharge hole directed in a radial direction is provided in said recess so that the compression gases are discharged through the discharge hole to an outside of the closed vessel.