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US 12,473,968 B2Granted
Motor unit
AssigneeJATCO Ltd
InventorToshikazu Oshidari
Life of this patent
Estimating the term…
Abstract
Provided is a unit including: a housing configured to accommodate a planetary gear mechanism, in which the housing includes a flow path through which a coolant flows, the planetary gear mechanism includes a ring gear fixed to the housing, and the flow path has a portion that overlaps the ring gear when viewed in a radial direction.
Claims16
A unit comprising:
- a housing configured to accommodate an oil and a planetary gear mechanism, the housing being provided below a vehicle room in a vertical line direction, wherein
- the housing includes a flow path through which a coolant made of a material different from the oil flows,
- the planetary gear mechanism includes a ring gear fixed to the housing,
- a protrusion portion is provided on an outer peripheral side of a portion that supports the ring gear,
- the protrusion portion protrudes outward in a radial direction from the outer peripheral side toward an inside of the flow path,
- the protrusion portion is provided in a spiral shape whose position in an axial direction varies,
- the flow path has a flow path portion sandwiched between the vehicle room and the ring gear when viewed in the radial direction, and
- the protrusion portion has a portion that overlaps the ring gear when viewed in the radial direction.
5 more elements
A unit comprising:
- a housing configured to accommodate an oil and a planetary gear mechanism, wherein
- the housing includes a flow path through which a coolant made of a material different from the oil flows,
- the planetary gear mechanism includes a ring gear fixed to the housing,
- the planetary gear mechanism includes a stepped pinion gear including a large pinion gear and a small pinion gear that has a smaller diameter than the large pinion gear,
- the ring gear meshes with the small pinion gear,
- the flow path has a portion that overlaps the ring gear when viewed in a radial direction, and
- the flow path overlaps the large pinion gear when viewed in an axial direction.
4 more elements
A unit comprising:
- a housing configured to accommodate an oil and a planetary gear mechanism, wherein
- the housing includes a flow path through which a coolant made of a material different from the oil flows,
- the planetary gear mechanism includes a ring gear fixed to the housing,
- the flow path has a portion that overlaps the ring gear when viewed in a radial direction,
- the housing includes a protrusion portion that overlaps the ring gear when viewed in the radial direction,
- the protrusion portion is provided on an outer peripheral side of a connection wall portion that supports the ring gear,
- the protrusion portion extends outward in the radial direction from the outer peripheral side,
- the housing includes a flow path-equipped case including the flow path and a facing case that faces the flow path-equipped case, and
- the flow path extends in a direction away from a mating surface of the flow path-equipped case and the facing case when viewed in the radial direction.
6 more elements
Dependencies are inferred from the claim text.