Power transmission system cover for engine

1. A power transmission system cover for an engine, comprising:

a cover portion, formed of a single-piece material and adapted to be attached to a sidewall of the engine to cover at least a part of a power transmission system which transmits a rotating force of a crankshaft to a camshaft;

a passage forming portion defining a flow-passage in which a fluid element to be supplied to the engine flows; and

an engine mount bracket, for mounting the engine to a vehicle, formed integrally with the cover portion and located near the passage forming portion,

wherein the flow-passage is a cooling water passage which guides cooling water to a cooling water inlet formed in one of a cylinder block and a cylinder head of the engine.

2. The power transmission system cover for an engine according to claim 1 , wherein the passage forming portion extends from a side of a cylinder block to a side of a cylinder head of the engine.

3. A power transmission system cover for an engine, comprising:

a cover portion, formed of a single-piece material and adapted to be attached to a sidewall of the engine to cover at least a part of a power transmission system which transmits a rotating force of a crankshaft to a camshaft;

a passage forming portion defining a flow-passage in which a fluid element to be supplied to the engine flows; and

an engine mount bracket, for mounting the engine to a vehicle, formed integrally with the cover portion and located near the passage forming portion,

wherein said cover portion has a projecting portion at which a part of the cover portion projects away from the sidewall of the engine along an axial direction of the camshaft, and

wherein the engine mount bracket is formed near the projecting portion.

4. A power transmission system cover for an engine, comprising:

a cover portion, formed of a single-piece material and adapted to be attached to a sidewall of the engine to cover at least a part of a power transmission system which transmits a rotating force of a crankshaft to a camshaft;

a passage forming portion defining a flow-passage in which a fluid element to be supplied to the engine flows; and

an engine mount bracket, for mounting the engine to a vehicle, formed integrally with the cover portion and located near the passage forming portion,

wherein the engine mount bracket is formed near bolt holes formed in said cover portion through which mounting bolts for mounting said cover portion to the side of the cylinder block of the engine are inserted.

5. A power transmission system cover for an engine, comprising:

a cover portion, formed of a single-piece material and adapted to be attached to a sidewall of the engine to cover at least a part of a power transmission system which transmits a rotating force of a crankshaft to a camshaft;

a passage forming portion defining a flow-passage in which a fluid element to be supplied to the engine flows; and

an engine mount bracket, for mounting the engine to a vehicle, formed integrally with the cover portion and located near the passage forming portion,

wherein said cover portion is provided with a water pump mounting portion which projects at perpendicular angles to an axial direction of the crankshaft and in which a rotating shaft of a water pump is located.

6. The power transmission system cover for an engine according to claim 5 , wherein a fluid element inlet passage extending along an axis of the crankshaft is formed in an inlet port which opens in the water pump mounting portion along the rotating shaft of the water pump.

7. The power transmission system cover for an engine according to claim 5 , wherein the water pump is located on a side of a cylinder block of the engine, and a cooling water inlet is located on a side of a cylinder head of the engine.

8. The power transmission system cover for an engine according to claim 5 , wherein a housing which holds a bearing of the rotating shaft of the water pump is formed integrally with the passage forming portion.

9. A power transmission system cover for an engine, comprising:

a cover portion, formed of a single-piece material and adapted to be attached to a sidewall of the engine to cover at least a part of a power transmission system which transmits a rotating force of a crankshaft to a camshaft;

a passage forming portion defining a flow-passage in which a fluid element to be supplied to the engine flows; and

an engine mount bracket, for mounting the engine to a vehicle, formed integrally with the cover portion and located near the passage forming portion,

wherein said cover portion includes a wall portion that extends from a periphery of said cover portion toward the sidewall of the engine.

10. A power transmission system cover for an engine, comprising:

a cover portion, formed of a single-piece material and adapted to be attached to a sidewall of the engine to cover at least a part of a power transmission system which transmits a rotating force of a crankshaft to a camshaft;

a passage forming portion defining a flow-passage in which a fluid element to be supplied to the engine flows;

an engine mount bracket, for mounting the engine to a vehicle, formed integrally with the cover portion and located near the passage forming portion; and

an upper cover portion adapted to be attached to a sidewall of a cylinder head cover of the engine.