公开(公告)号：US20170370397A1

公开(公告)日：2017-12-28

申请号：US15617084

申请日：2017-06-08

Applicant: KUBOTA Corporation

Inventor： Hiroki OSO ,  Naoya SAKURAI ,  Takumi FUKUDA ,  Mitsugu OKUDA ,  Wataru IWANAGA ,  Yusuke SUZUKI ,  Takahiro KAJIHARA

IPC: F16B39/12 ,  F16B39/08

CPC classification number: F16B39/12 ,  F16B21/183 ,  F16B37/14 ,  F16B39/08 ,  F16B41/005

Abstract: A device with an adjustment bolt includes a bolt attachment wall, an adjustment bolt screwed with an internal thread hole of the bolt attachment wall, a locknut screwed with the adjustment bolt, a cover that surrounds the adjustment bolt and the locknut, and a stopper unit that prevents removal of the cover from the locknut. The stopper unit includes an inner circumference groove of the cover fitted around a C-shaped retaining ring, and an external circumference groove of the locknut fitting within the retaining ring. The external circumference groove includes a first groove portion having a large-diameter groove bottom that restricts contraction and removal of the retaining ring fitted within the inner circumference groove, and a second groove portion provided continuously for the first groove portion and having a small-diameter groove bottom that allows contraction and removal of the retaining ring fitted within the inner circumference groove.

公开(公告)号：US20170350344A1

公开(公告)日：2017-12-07

申请号：US15609195

申请日：2017-05-31

Applicant: KUBOTA Corporation

Inventor： Hiroki OSO ,  Hideyuki KOYAMA ,  Takahiro YAMAZAKI ,  Kentaro NAGAI ,  Rina KANEKO

IPC: F02F3/10

CPC classification number: F02F3/10

Abstract: A piston for an engine is provided, that makes it possible to improve supply of engine oil to a recessed part thereof. The piston includes a resin coating film and a recessed part on a surface of a skirt part. In the piston, resin coating films are distributed in a patchy fashion on the surface of the skirt part. The recessed part is formed by the surface of the skirt part, between adjacent surfaces of the patchy resin coating films and by the adjacent resin coating films, forming a net-like groove. An outer-edge resin coating film, extending in a piston movement direction, is provided at the ends, in a piston circumferential direction of the skirt part.

公开(公告)号：US20160363017A1

公开(公告)日：2016-12-15

申请号：US15177444

申请日：2016-06-09

Applicant: KUBOTA Corporation

Inventor： Kentaro NAGAI ,  Takahiro YAMAZAKI ,  Takahito HAMASAKI ,  Hideyuki GOTO ,  Hiroki OSO ,  Hideyuki KOYAMA ,  Akira TANAKA ,  Yoshinori TANAKA

IPC: F01M13/04 ,  F01M13/00

CPC classification number: F01M13/04 ,  F01M13/0011 ,  F01M13/0416 ,  F01M2013/0038 ,  F01M2013/045 ,  F01M2013/0488

Abstract: There is provided an engine capable of reducing oil consumption. The engine includes a cylinder head, a cylinder head cover mounted above the cylinder head, a rocker arm covered by the cylinder head cover, and a breather chamber provided inside the cylinder head cover. As a front-rear direction is defined by a longitudinal direction of the cylinder head cover, the breather chamber has a blow-by gas inlet at one side in the front-rear direction, a blow-by gas outlet at another side in the front-rear direction, and an oil discharging guide chamber at an intermediate part in the front-rear direction. The blow-by gas inlet is opened on a bottom wall of the breather chamber, and a peripheral wall of the oil discharging guide chamber is protruded downwardly from the bottom wall of the breather chamber toward between the rocker arm provided at a side of the blow-by gas outlet and the blow-by gas inlet.

Abstract translation: 提供能够降低油耗的发动机。 发动机包括气缸盖，安装在气缸盖上方的气缸盖，由气缸盖罩覆盖的摇臂，以及设置在气缸盖罩内的通气室。 由于前后方向由气缸盖罩的长度方向限定，所以通气室在前后方向的一侧具有窜缸入口，在前侧的另一侧具有窜缸出气口 并且在前后方向的中间部分设有排油引导室。 窜气入口在通气室的底壁上打开，排油引导室的周壁从通气室的底壁朝向设置在吹气侧的摇臂之间向下突出 通过气体出口和窜气入口。

公开(公告)号：US20160281555A1

公开(公告)日：2016-09-29

申请号：US14959174

申请日：2015-12-04

Applicant: KUBOTA Corporation

Inventor： Kentaro NAGAI ,  Hideyuki GOTO ,  Takahiro YAMAZAKI ,  Hiroki OSO

IPC: F01M1/10 ,  F01M11/00

CPC classification number: F01M1/10 ,  F01M11/0004 ,  F01M2001/0292 ,  F01M2001/1078 ,  F01M2011/005 ,  F01M2011/007

Abstract: There is provided an engine lubricating device with which passage resistance of an oil strainer can be reduced and a support stay for an oil filter is unnecessary. An oil strainer includes an outer cylinder and an inner cylinder, the outer cylinder and the inner cylinder respectively have straight central axes and form inner and outer double cylinders, the outer cylinder has a strainer inlet at a lower end, the inner cylinder has a peripheral wall formed as a filter portion, the oil strainer is led out in an orientation inclined downward from the cylinder block toward an inner bottom portion of an oil pan, an upper end portion of the outer cylinder is fixed to a cylinder block, and an upper end opening portion of the inner cylinder communicates with an oil passage inlet of the cylinder block.

Abstract translation: 提供了一种发动机润滑装置，能够减少滤油器的通路阻力，并且不需要油滤清器的支撑停留。 油过滤器包括外筒和内筒，外筒和内筒分别具有直的中心轴线并形成内外双筒，外筒在下端具有过滤器入口，内筒具有外周 壁形成为过滤部，油过滤器以从气缸体朝向油底壳的内底部向下倾斜的方向引出，外筒的上端部固定在气缸体上，上部 内筒的端部开口部与气缸体的油路入口连通。