Outboard engine
There are included: a motor contained in a top cover; a vertical shaft that is rotationally driven by the motor, the vertical shaft being contained in an extension casing; and a propeller that is rotationally driven by the vertical shaft, the propeller being provided at a gear casing. A heat exchanging member is provided that is positioned below an anticavitation plate and above a propeller shaft that rotationally drives the propeller, and inside the heat exchanging member, a cooling oil channel member is provided that cooling oil for cooling the motor flows through.
1 . An outboard engine comprising:
a motor contained in a top cover;
a vertical shaft that is rotationally driven by the motor, the vertical shaft being contained in an extension casing; and
a propeller that is rotationally driven by the vertical shaft, the propeller being provided at a gear casing; and
a PCU (Power Control Unit), wherein
a heat exchanging member is provided that is positioned below an anticavitation plate and above a propeller shaft that rotationally drives the propeller,
a cooling oil channel member is provided inside the heat exchanging member, cooling oil flowing through the cooling oil channel member to cool the motor, and
a cooling water channel member is provided inside the heat exchanging member, cooling water flowing through the cooling water channel member to cool the PCU.
2 . The outboard engine according to claim 1 , wherein the heat exchanging member is arranged more frontward than the gear casing.
3 . The outboard engine according to claim 1 , wherein the heat exchanging member is attached via an arm member joined to an oil pan and extending obliquely downward.
4 . The outboard engine according to claim 3 , wherein the heat exchanging member is attached freely pivotably with respect to the arm member.
5 . The outboard engine according to claim 4 , wherein a pivot shaft, of the heat exchanging member, with respect to the arm member extends in a direction orthogonally intersecting a rotation axis of the propeller.
6 . The outboard engine according to claim 5 , wherein the pivot shaft of the heat exchanging member extends in a right-left direction.
7 . An outboard engine comprising:
a motor contained in a top cover;
a vertical shaft that is rotationally driven by the motor, the vertical shaft being contained in an extension casing; and
a propeller that is rotationally driven by the vertical shaft, the propeller being provided at a gear casing, wherein
a heat exchanging member is provided that is positioned below an anticavitation plate and above a propeller shaft that rotationally drives the propeller,
a cooling oil channel member is provided inside the heat exchanging member, cooling oil flowing through the cooling oil channel member to cool the motor, and
the heat exchanging member is attached via an arm member joined to an oil pan and extending obliquely downward.
8 . The outboard engine according to claim 7 , wherein a flow channel for the cooling oil is formed inside the arm member.
9 . The outboard engine according to claim 7 , wherein the arm member comprises a pair of arm members, and
the heat exchanging member is attached to the pair of arm members.
10 . The outboard engine according to claim 9 , wherein
a cooling oil feeding pipe through which the cooling oil flows is formed inside one arm member among the pair of arm members, and
a cooling oil return pipe through which the cooling oil flows is formed inside an other arm member among the pair of arm members.
11 . The outboard engine according to claim 10 , wherein a pair of pivot shafts are provided on both sides of the heat exchanging member, the pair of pivot shafts are freely pivotably engaged with the pair of arm members, respectively.
12 . The outboard engine according to claim 11 , wherein
a cooling oil inflow-side channel through which the cooling oil flows is formed inside one pivot shaft that is among the pair of pivot shafts and that is engaged with the one arm member, and
a cooling oil outflow-side channel through which the cooling oil flows is formed inside an other pivot shaft that is among the pair of pivot shafts and that is engaged with the other arm member.
13 . The outboard engine according to claim 12 , wherein cooling oil inflow-side communication channels that allow communication from the cooling oil inflow-side channel to an outer circumferential surface of the one pivot shaft are formed to the one pivot shaft.
14 . The outboard engine according to claim 13 , wherein cooling oil outflow-side communication channels that allow communication from the cooling oil outflow-side channel to an outer circumferential surface of the other pivot shaft are formed to the other pivot shaft.
15 . The outboard engine according to claim 7 , wherein the arm member comprises a pair of arm members,
the heat exchanging member is attached to the pair of arm members, and
a cooling oil feeding pipe through which the cooling oil flows and a cooling water feeding pipe through which a cooling water flows are contained inside one arm member among the pair of arm members.
16 . The outboard engine according to claim 15 , wherein a pair of pivot shafts are provided on both sides of the heat exchanging member, the pair of pivot shafts are freely pivotably engaged with the pair of arm members, respectively, and
a cooling oil inflow-side channel connected to the cooling oil channel member and a cooling water inflow-side channel connected to a cooling water channel member are formed inside one pivot shaft that is among the pair of pivot shafts and that is engaged with the one arm member.
17 . The outboard engine according to claim 16 , wherein cooling oil inflow-side communication channels that allow communication from the cooling oil inflow-side channel to an outer circumferential surface of the one pivot shaft are formed to the one pivot shaft,
cooling water inflow-side communication channels that allow communication between the cooling water feeding pipe and the cooling water inflow-side channel are formed to the one pivot shaft, and
the cooling oil inflow-side communication channels and the cooling water inflow-side communication channels are formed at different positions in an axial direction of the one pivot shaft.
18 . An outboard engine comprising:
a motor contained in a top cover;
a vertical shaft that is rotationally driven by the motor, the vertical shaft being contained in an extension casing; and
a propeller that is rotationally driven by the vertical shaft, the propeller being provided at a gear casing, wherein
a heat exchanging member is provided that is positioned below an anticavitation plate and above a propeller shaft that rotationally drives the propeller,
a cooling oil channel member is provided inside the heat exchanging member, cooling oil flowing through the cooling oil channel member to cool the motor, and
the heat exchanging member is arranged more frontward than the gear casing and spaced apart from the gear casing.