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

Claim 2:
3. 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 an annular end face disposed to abut the fixed base plate,
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, wherein
an outer peripheral wall of the fixed scroll includes a suction port through which the refrigerant is drawn into the compression chamber,
the outer peripheral space is connected to the compression chamber via the suction port, and
the oil passage is connected to the outer peripheral space such that an opening of the oil passage connected to the outer peripheral space is at a same phase position in a circumferential direction of the rotary shaft as an opening of the suction port connected to the outer peripheral space.