Liquid-cooled engine
AssigneeHonda Motor Co., Ltd.
InventorsMinoru Matsuda, Shumpei Hasegawa
Life of this patent
Estimating the term…
Abstract
To simplify the connection of a cylinder barrel and a cylinder head to, a crankcase and to reduce the weight of an engine. A liquid-cooled engine is provided with the crankcase wherein a cylinder barrel having a water jacket on the cylinder side for cooling is connected to the crankcase. A cylinder head is connected to the cylinder barrel. A plurality of mounting bosses extend from fitting planes to a crankcase of the cylinder barrels and to cylinder heads that are integrated with cylinder blocks. The cylinder barrels and the cylinder heads are integrated in a state in which the mounting bosses encircle the cylinder bores and the cylinder blocks are fastened to the crankcase by bolts inserted into each mounting boss.
Claims20
A liquid-cooled engine, comprising:
- a crankcase for rotatably supporting a crankshaft, a cylinder barrel having a cylinder bore and a water jacket on the cylinder side for cooling the engine, the water jacket encircles the cylinder bore and is connected to the crankcase and a cylinder head having a water jacket on the head side is in communication with the water jacket on the cylinder side and is connected to the cylinder barrel;
- a plurality of mounting bosses extending from a fitting plane to the crankcase of the cylinder barrel to the cylinder head are integrated with a cylinder block in which the water jacket on the cylinder side and the water jacket on the head side mutually communicate and the cylinder barrel and the cylinder head are integrated wherein the mounting bosses encircle the cylinder bore;
- and
- the cylinder block is fastened to the crankcase by bolts inserted into each mounting boss.
A liquid-cooled engine, comprising:
- a crankcase for rotatably supporting a crankshaft, a cylinder barrel having a cylinder bore and a jacket on the cylinder side for cooling the engine, the jacket encircles the cylinder bore and is connected to the crankcase and a cylinder head having a jacket on the head side being in communication with the jacket on the cylinder side and is connected to the cylinder barrel;
- a plurality of mounting bosses extending from a fitting plane to the crankcase of the cylinder barrel to the cylinder head, said plurality of mounting bosses being integrated with a cylinder block in which the jacket on the cylinder side and the jacket on the head side mutually communicate and the cylinder barrel and the cylinder head are integrated in a state in which the mounting bosses encircle the cylinder bore;
- and
- bolts being inserted into the mounting bosses for fastening the cylinder block to the crankcase.
Dependencies are inferred from the claim text.