公开(公告)号：US20170276036A1

公开(公告)日：2017-09-28

申请号：US15454463

申请日：2017-03-09

Applicant: HONDA MOTOR CO., LTD.

Inventor： Hodaka MUKOHARA ,  Ryuji TSUCHIYA

IPC: F01M1/02 ,  F01M1/10 ,  F16H57/04 ,  F01M11/02

CPC classification number: F01M1/02 ,  F01M1/10 ,  F01M11/02 ,  F01M2001/0238 ,  F01M2001/0253 ,  F01M2001/0269 ,  F01M2001/0284 ,  F01M2011/007 ,  F16H57/0404 ,  F16H57/0424 ,  F16H57/0432 ,  F16H57/0436 ,  F16H57/0441 ,  F16H57/0473 ,  F16H57/0475 ,  F16N2039/007

Abstract: An engine power unit for a vehicle has a crankcase made up of tow left and right crankcase members, and a lubricant feed pump disposed in one crankcase member in such a fashion that one side surface of pump rotors of the feed pump lies on the mating surface of the crankcase members. The feed pump is mounted on one end of the shaft of the feed pump while a drive gear for rotating the shaft is disposed on the opposite end of the shaft. A lubricant oil filter to which oil is delivered from the feed pump is disposed on the other crankcase member. Thus, the structure for supplying lubricating oil is simplified, and the power unit is reduced in size in its entirety.

公开(公告)号：US20170276212A1

公开(公告)日：2017-09-28

申请号：US15440219

申请日：2017-02-23

Applicant: HONDA MOTOR CO., LTD.

Inventor： Hodaka MUKOHARA

IPC: F16F15/26 ,  F01M1/02 ,  F01P3/02 ,  F01P5/12

CPC classification number: F16F15/264 ,  F01M1/02 ,  F01M2001/0253 ,  F01M2001/0269 ,  F01P3/02 ,  F01P5/12 ,  F01P2003/021 ,  F01P2003/024

Abstract: In a vehicle power unit having an internal combustion engine, a pair of power transmission gears for transmitting rotation of a crank shaft to a balancer shaft is arranged between a crankcase and a crankcase cover, and a fluid pump is provided on a power transmission gear shaft supporting a power transmission gear, by which the backlash between the crank shaft and the balancer shaft is reduced and the friction and the noise of the gears are restrained while achieving downsizing of the gears of the crank shaft and the balancer, weight reduction and downsizing of the power unit.

公开(公告)号：US20170276089A1

公开(公告)日：2017-09-28

申请号：US15440203

申请日：2017-02-23

Applicant: HONDA MOTOR CO., LTD.

Inventor： Hodaka MUKOHARA

IPC: F02F1/24 ,  F02F7/00 ,  F01L1/18 ,  F01L1/053

CPC classification number: F02F1/242 ,  B61G1/02 ,  F01L1/047 ,  F01L1/053 ,  F01L1/12 ,  F01L1/18 ,  F01L1/181 ,  F01L1/26 ,  F01L2001/0535 ,  F01L2105/00 ,  F02F7/006 ,  F02F2007/0063

Abstract: An engine power unit includes a crankcase, a cylinder body, and a cylinder head sequentially stacked and fastened with each other. A cam shaft holder is fastened to the cylinder head to rotatably support a cam shaft of an engine valve operating mechanism. A cylinder head cover covers the cylinder head and the cam shaft holder. Fastening bolts penetrate the cylinder head cover and the cam shaft holder to be screwed into the cylinder head. Pressing surfaces are formed on the inner surface of the cylinder head cover. The pressing surfaces are abutted against and press the cam shaft holder to the cylinder head. Thus, rigidity around the cylinder head is enhanced, and a weight reduction of the power unit is achieved.

公开(公告)号：US20170284288A1

公开(公告)日：2017-10-05

申请号：US15453186

申请日：2017-03-08

Applicant: HONDA MOTOR CO., LTD.

Inventor： Hodaka MUKOHARA

IPC: F02B61/02 ,  F02B75/22 ,  F02F1/24 ,  F02F7/00 ,  F01L1/047 ,  F01L1/18

CPC classification number: F02B61/02 ,  F01L1/047 ,  F01L1/053 ,  F01L1/18 ,  F01L1/181 ,  F01L1/46 ,  F01L2001/0476 ,  F01L2001/0535 ,  F01L2001/0537 ,  F02B75/22 ,  F02F1/24 ,  F02F7/0012 ,  F02F7/0046 ,  F02F7/0068 ,  F02F7/0082 ,  F02F11/002 ,  F02F2007/0063

Abstract: An internal combustion engine for a motorcycle includes a rear cylinder head, the rear cylinder head being provided with a camshaft, an exhaust rocker arm rocked by the camshaft, an engine valve closed/opened by being push-pressed by the exhaust rocker arm, and a rocker arm shaft swingably supporting the exhaust rocker arm. In the internal combustion engine for the motorcycle, the rear cylinder head is provided separately from a holder member, the holder member being provided adjacently to the rear cylinder head, the camshaft is rotatably supported by the holder member, and the holder member is provided with right and left rear side walls and internal combustion engine supporting portions, the right and left rear side walls supporting the rocker arm shaft, the internal combustion engine supporting portion being supported by a vehicle body frame.

公开(公告)号：US20170276038A1

公开(公告)日：2017-09-28

申请号：US15454503

申请日：2017-03-09

Applicant: HONDA MOTOR CO., LTD.

Inventor： Hodaka MUKOHARA

IPC: F01M11/03 ,  B01D29/03 ,  B01D35/30 ,  H02K7/18 ,  B01D35/00

CPC classification number: F01M11/03 ,  B01D29/03 ,  B01D29/21 ,  B01D29/33 ,  B01D35/005 ,  B01D35/306 ,  B01D2201/295 ,  B01D2201/4023 ,  F01M1/10 ,  F01M11/0004 ,  F01M2001/105 ,  F01M2011/007 ,  F02B61/02 ,  F16N2039/007 ,  H02K7/1815

Abstract: A power unit including an internal combustion engine has an electric power generator mounted on an end of a crankshaft, a power transmitting member mounted on the other end of the crankshaft, and a lubricant oil filter. The oil filter partly overlaps the electric power generator as viewed in the direction of a crankshaft axis, and is positioned between the electric power generator and a crank weight on the crankshaft with respect to the direction of the crankshaft axis. The oil filter has a filter mount axis forming an acute angle to the crankshaft axis. The engine crankcase is thus prevented from bulging outwardly, and the power unit is reduced in size in its entirety.