Multi-cylinder engine
AssigneeHonda Motor Co., Ltd.
InventorsTakaaki Tsukui, Toshiyuki Sato, Satoru Nojima
Life of this patent
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Abstract
The invention provides a multi-cylinder engine wherein, even where it is structured such that a cam chain case is provided on a side portion of the engine, a working fluid supply path can be simplified and the weight and size of a cylinder head reduced. According to the invention, a multi-cylinder engine is provided wherein at least one of a plurality of engine valves of a cylinder head can be cut off from its corresponding combustion chambers such that a first intake valve, a second intake valve, a first exhaust valve, and a second exhaust valve are positioned on the opposite side to a cam chain case.
Claims11
A multi-cylinder engine comprising:
- an engine block including an outer surface configured to engage a cam chain case;
- at least two cylinder bores that partially define at least two combustion chambers disposed within the engine block, the cylinder bores each including a first end and a second end;
- a cylinder head mounted to the engine block and disposed adjacent to the first end of said cylinder bore;
- and
- a plurality of engine valves provided on the cylinder head, wherein at least one engine valve is constructed to be cut off from the combustion chambers.
A multi-cylinder engine comprising:
- an engine portion, wherein the engine portion includes a first end, a second end;
- a cam chain case disposed adjacent to a first end of the engine portion;
- a working fluid port positioned at the second end of the engine portion;
- a plurality of engine cylinders disposed between the cam chain case and the working fluid port, wherein each cylinder includes a plurality of valves;
- a plurality of working fluid channels connecting the working fluid port to the plurality of valves, wherein at least one valve of the cylinder adjacent the cam chain case is in fluid isolation from the working fluid port.
A multi-cylinder engine comprising:
- an engine including a plurality of combustion chambers, wherein at least one combustion chamber can be completely shut off and one combustion chamber can be partially shut off,
- a shut off mechanism disposed at a first end of the engine, wherein the combustion chamber that can be completely shut off is positioned between the shut off mechanism and the combustion chamber that can be partially shut off.
Dependencies are inferred from the claim text.