초록 ▼

A scroll type fluid displacement apparatus including a housing divided into a discharge chamber and a suction chamber is disclosed. A fixed scroll member is disposed within the housing and comprises a first end plate and a first wrap which extends from one end surface of the first end plate. The dis

A scroll type fluid displacement apparatus including a housing divided into a discharge chamber and a suction chamber is disclosed. A fixed scroll member is disposed within the housing and comprises a first end plate and a first wrap which extends from one end surface of the first end plate. The discharge chamber is formed adjacent the fixed scroll member on the side of the first end plate opposite the side thereof from which the first wrap extends. An annular shaped dividing wall is formed at the end surface of the first end plate and extends into the interior of the discharge chamber. The discharge chamber is partitioned into two chambers by the dividing wall. At least one hole is formed through the dividing wall to connect the two chambers of the discharge chamber. The dividing wall is provided with a deflecting member for bending the fluid flow of the discharging fluid. At least one oil separating member is disposed in a fluid passageway upstream of a fluid outlet port from the housing. The separation of lubricating oil from the discharging fluid is promoted and the outflow of the oil is minimized.

대표청구항 ▼

In a scroll type fluid displacement apparatus including a housing having a fluid inlet port and a fluid outlet port, a fixed scroll member fixedly disposed within said housing and having a first end plate from which a first involute wrap extends, an orbiting scroll member having a second end plate f

In a scroll type fluid displacement apparatus including a housing having a fluid inlet port and a fluid outlet port, a fixed scroll member fixedly disposed within said housing and having a first end plate from which a first involute wrap extends, an orbiting scroll member having a second end plate from which a second involute wrap extends, said first and second wraps interfitting at an angular and radial offset to make a plurality of line contacts to define at least one pair of sealed off fluid pockets, driving means for effecting the orbital motion of said orbiting scroll member while the rotation of said orbiting scroll member is prevented, whereby said fluid pockets change volume by the orbital motion of said orbiting scroll member, the improvement comprising a discharge chamber located inside the housing and adjacent said fixed scroll member on the side of said first end plate opposite the side thereof from which said first wrap extends, said first end plate having a discharge bore therethrough communicating between said fluid pocket near the center of said first wrap and said discharge chamber, a dividing wall disposed in said discharge chamber for partitioning said discharge chamber into two partition chambers, said dividing wall having at least one hole for providing fluid communication between said two partition chambers, deflecting means including a generally arc shaped plate disposed in an area between an interior surface of said housing and an exterior surface of said dividing wall, said arc shaped plate being located in said area such that fluid discharging through said at least one hole in said dividing wall moves in a direction away from said fluid outlet port and thereafter in a direction toward said fluid outlet port, and at least one oil separating member for separating lubricating oil from the fluid discharging from said fluid pockets, said at least one oil separating member being disposed in a fluid passageway between the fluid outlet port and said discharge bore.