Patent ID: 11965508
Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A scroll compressor, comprising:
a housing;
a rotary shaft rotatably supported by the housing;
a fixed scroll accommodated in the housing and fixed to the housing;
an orbiting scroll that orbits as the rotary shaft rotates;
a compression chamber defined between the fixed scroll and the orbiting scroll;
a discharge chamber; and
an oil passage, wherein
a refrigerant drawn in from an outside is compressed in the compression chamber,
the refrigerant compressed in the compression chamber is discharged into the discharge chamber,
an outer peripheral space connected to the compression chamber is defined between an outer peripheral surface of the fixed scroll and an inner peripheral surface of the housing, and
oil separated from the refrigerant discharged into the discharge chamber is guided to the outer peripheral space through the oil passage,
further comprising an oil reservoir chamber in which oil separated from the refrigerant is stored, wherein
the fixed scroll includes a fixed base plate and a fixed volute wall extending from the fixed base plate,
the housing includes a discharge housing member that defines the discharge chamber and the oil reservoir chamber together with the fixed base plate,
the discharge housing member includes a plate-shaped end wall, a cylindrical peripheral wall, and an annular end face disposed to abut the fixed base plate, the peripheral wall extending in a tubular shape from the outer periphery of the end wall, and the peripheral wall surrounding the fixed scroll,
the discharge chamber and the oil reservoir chamber are defined by the discharge housing member and the fixed base plate inside the annular end face, and
the oil passage is provided between the annular end face and the fixed base plate and connects the oil reservoir chamber and the outer peripheral space to each other,
further comprising a gasket that provides a seal between the annular end face and the fixed base plate, wherein
the oil passage includes a restriction groove provided in the gasket,
the restriction groove is connected to the oil reservoir chamber,
the oil passage includes a connection passage that connects the restriction groove and the outer peripheral space to each other, and
the connection passage is provided in the fixed base plate, wherein
the connection passage is a groove provided in the first annular end face,
the first end of the connection passage is connected to the second end of the restriction groove, and
the second end of the connection passage opens at the outer peripheral edge of the fixed base plate.