| 摘要 |
A scroll compressor including a fixed scroll member having a substantially planar surface and an involute wrap element projecting therefrom, and provided with a first pair of offset, parallel elongate recesses, and an orbiting scroll member having a substantially planar surface and an involute wrap element projecting therefrom, and provided with a second pair of offset, parallel elongate recesses, the first and second pairs of recesses aligned in substantially perpendicular directions, the fixed and orbiting scroll members mutually engaged. An Oldham coupling is disposed in a first plane located between and substantially parallel with the substantially planar surfaces, the Oldham coupling having a first pair of axially extending tabs slidably engaged in the first pair of recesses and a second pair of axially extending tabs slidably engaged in the second pair of recesses, whereby relative rotation between the fixed and orbiting scroll members is prevented. The Oldham coupling has an outer peripheral surface having first and second portions. The first and second outer peripheral surface portions are disposed on opposite sides of a line disposed in the first plane, the line substantially parallel to the second pair of offset, parallel elongate recesses provided in the orbiting scroll member; the Oldham coupling is reciprocated in directions substantially perpendicular to this line between first and second positions. The fixed scroll member is provided with a recessed portion, the Oldham coupling disposed substantially within the recessed portion. The recessed portion is partly defined by a radially interior wall having first and second surfaces, the first and second radially interior wall surfaces positioned on opposite sides of the line. The first radially interior wall surface closely conforms to the shape of the first Oldham coupling outer peripheral surface portion, the first radially interior wall surface adjacent the Oldham coupling when the Oldham coupling is in its first position. The second radially interior wall surface closely conforms to the shape of the second Oldham coupling outer peripheral surface portion, the second radially interior wall surface adjacent the Oldham coupling when the Oldham coupling is in its second position.
|
