公开(公告)号：US10655514B2

公开(公告)日：2020-05-19

申请号：US15757486

申请日：2016-10-28

Applicant: Komatsu Ltd.

Inventor： Shuuji Hori ,  Hiroyuki Chikugo ,  Mutsumi Ono ,  Takuya Nohara ,  Yuta Baba ,  Toshiyuki Matsumoto

IPC: F01M11/10 ,  F04B53/18 ,  F15B21/04 ,  F04B53/16 ,  B01D35/02 ,  B01D29/15 ,  B01D35/16 ,  F15B1/26 ,  B01D29/11 ,  B01D35/00 ,  F15B21/041 ,  H04N5/225 ,  F01M1/02 ,  F01M11/00

Abstract: In order to be able to easily check the state of foreign matter contained in oil regardless of an installation location, a device main body 10 having a housing chamber 11 in which oil is stored, a plug 20 attached to a bottom portion of the housing chamber 11 in a state where an end surface of a shaft portion 20a faces upward, a spacer member 30 formed by a transparent member and arranged on the plug 20 in such a manner that one end surface 30a faces an inside of the housing chamber 11; and an imaging unit 40 arranged on the plug 20, the imaging unit 40 imaging the inside of the housing chamber 11 via the spacer member 30 are provided.

公开(公告)号：US10391431B2

公开(公告)日：2019-08-27

申请号：US15513586

申请日：2014-09-30

Applicant: Komatsu Ltd.

Inventor： Hiroyuki Chikugo ,  Shuuji Hori ,  Yuta Baba

IPC: B01D35/153 ,  B01D35/00 ,  B01D29/11 ,  F15B21/04 ,  F15B1/26 ,  F15B21/041 ,  B01D35/027 ,  B01D36/00 ,  F01M1/10

Abstract: A strainer device includes a strainer element; a first lid member that covers an upper opening of the strainer element; a second lid member that covers a lower opening of the strainer element and has a fitting hole in a portion surrounded by the strainer element; a delivery pipe protruding upward inside a hydraulic oil tank in a state in which the delivery pipe is fitted into the fitting hole of the second lid member; and a check valve arranged at the first lid member. The check valve includes a valve main body having a valve passage whose one end opens to the internal space of the strainer element and whose other end opens to inside of the hydraulic oil tank; and a valve body which is arranged to be able to move in a vertical direction with respect to a valve seat provided in the valve passage.

公开(公告)号：US20180245490A1

公开(公告)日：2018-08-30

申请号：US15757486

申请日：2016-10-28

Applicant: Komatsu Ltd.

Inventor： Shuuji Hori ,  Hiroyuki Chikugo ,  Mutsumi Ono ,  Takuya Nohara ,  Yuta Baba ,  Toshiyuki Matsumoto

IPC: F01M11/10 ,  B01D29/11 ,  B01D35/00 ,  F15B21/04 ,  H04N5/225

CPC classification number: F01M11/10 ,  B01D29/114 ,  B01D29/15 ,  B01D35/005 ,  B01D35/02 ,  B01D35/16 ,  F01M1/02 ,  F01M11/0004 ,  F04B53/16 ,  F04B53/18 ,  F15B1/26 ,  F15B21/04 ,  F15B21/041 ,  F15B2211/615 ,  F15B2211/655 ,  H04N5/2253 ,  H04N2005/2255

Abstract: In order to be able to easily check the state of foreign matter contained in oil regardless of an installation location, a device main body 10 having a housing chamber 11 in which oil is stored, a plug 20 attached to a bottom portion of the housing chamber 11 in a state where an end surface of a shaft portion 20a faces upward, a spacer member 30 formed by a transparent member and arranged on the plug 20 in such a manner that one end surface 30a faces an inside of the housing chamber 11; and an imaging unit 40 arranged on the plug 20, the imaging unit 40 imaging the inside of the housing chamber 11 via the spacer member 30 are provided.

公开(公告)号：US20170296947A1

公开(公告)日：2017-10-19

申请号：US15513586

申请日：2014-09-30

Applicant: Komatsu Ltd.

Inventor： Hiroyuki Chikugo ,  Shuuji Hori ,  Yuta Baba

IPC: B01D35/153 ,  B01D35/00 ,  B01D29/11 ,  F15B21/04 ,  F15B1/26

CPC classification number: B01D35/153 ,  B01D29/114 ,  B01D35/005 ,  B01D35/0276 ,  B01D36/001 ,  B01D2201/167 ,  B01D2201/291 ,  F01M2001/1085 ,  F15B1/26 ,  F15B21/041

Abstract: A strainer device includes a strainer element; a first lid member that covers an upper opening of the strainer element; a second lid member that covers a lower opening of the strainer element and has a fitting hole in a portion surrounded by the strainer element; a delivery pipe protruding upward inside a hydraulic oil tank in a state in which the delivery pipe is fitted into the fitting hole of the second lid member; and a check valve arranged at the first lid member. The check valve includes a valve main body having a valve passage whose one end opens to the internal space of the strainer element and whose other end opens to inside of the hydraulic oil tank; and a valve body which is arranged to be able to move in a vertical direction with respect to a valve seat provided in the valve passage.