公开(公告)号：US10066364B2

公开(公告)日：2018-09-04

申请号：US15508534

申请日：2015-10-23

Applicant: KCM Corporation

Inventor： Yasuo Yamazaki ,  Takashi Takeyama ,  Keigo Kikuchi ,  Akira Shimohira ,  Keisuke Kobayashi

IPC: B01D53/92 ,  E02F9/08 ,  F01N3/20 ,  F02B61/00 ,  F01P5/02 ,  F01N3/28 ,  B60K11/02 ,  B60K13/04 ,  E02F9/18 ,  E02F3/34

Abstract: A construction machine includes: a cover that covers an engine and a radiator; a radiator fan that is arranged at the rear of a vehicle body frame and discharges exhaust gas toward the rear of the vehicle body frame from the inner space of the cover; an injection device that injects a reducing agent into exhaust gas of the engine; a tank housing section that is arranged at one side of the vehicle body frame, includes an introduction section for introducing outside air, and houses a tank for storing the reducing agent injected by the injection device; and a connection section that is arranged in either the cover or the vehicle body frame and in the tank housing section, connects the inner space of the tank housing section and the inner space of the cover, and allows the outside air and the pipe to pass therethrough, the outside air having been introduced from the introduction section by the suction pressure of the radiator fan, the pipe supplying the reducing agent to the injection device.

公开(公告)号：US09957695B2

公开(公告)日：2018-05-01

申请号：US15508205

申请日：2015-12-25

Applicant: KCM Corporation

Inventor： Takashi Takeyama ,  Keigo Kikuchi ,  Katsutaka Hara ,  Masashi Yamashita

IPC: B60K1/04 ,  B60K5/00 ,  B60K6/20 ,  E02F9/08 ,  B60K13/02 ,  B60K13/04 ,  E02F9/00 ,  F01N3/28 ,  F01N3/10 ,  F01N3/20 ,  F02M35/04 ,  E02F3/34

CPC classification number: E02F9/0866 ,  B60K13/02 ,  B60K13/04 ,  E02F3/34 ,  E02F9/00 ,  E02F9/0891 ,  F01N3/103 ,  F01N3/206 ,  F01N3/2066 ,  F01N3/28 ,  F01N2490/06 ,  F01N2570/10 ,  F01N2570/12 ,  F01N2570/14 ,  F01N2590/08 ,  F01N2610/02 ,  F02M35/042

Abstract: An exhaust system of a work machine is equipped with a first exhaust system, a second exhaust system, and a third exhaust system. The first exhaust system and the third exhaust system are arranged to be in parallel with respective one ends directed in the same direction. In a plan view, the second exhaust system is arranged with the other end side directed in the same direction as the one end sides of the first exhaust system and the third exhaust system to be in parallel with the first exhaust system and the third exhaust system between the first exhaust system and the third exhaust system and, in a side view, is arranged above the first exhaust system and the third exhaust system.

公开(公告)号：US10422264B2

公开(公告)日：2019-09-24

申请号：US15754299

申请日：2017-01-05

Applicant: KCM CORPORATION

Inventor： Yoshihiro Itou ,  Hiroyuki Kizaki ,  Takashi Takeyama

IPC: F01N3/28 ,  B01D53/94 ,  B60K11/06 ,  E02F9/00 ,  F01P3/20 ,  F01N13/08 ,  F01P7/16 ,  E02F9/08 ,  B60K11/02 ,  B60K13/04 ,  F01N3/20

Abstract: A work machine provided with an exhaust gas purifying device includes a selective catalytic reducing device that performs treatment on exhaust gas of an engine, and a reducing agent injection device that injects a reducing agent into exhaust gas to be supplied to the selective catalytic reducing device. The work machine is provided with a housing that delimits an engine room accommodating the engine and the exhaust gas purifying device. The housing includes a top board that covers the engine room above the engine, and an exhaust duct that is provided in the top board and discharges the air in the engine room to the outside of the engine room. A part of a reducing agent supply pipe for guiding the reducing agent to the reducing agent injection device is disposed in the exhaust duct in a position above the reducing agent injection device.

公开(公告)号：US10301995B2

公开(公告)日：2019-05-28

申请号：US15451474

申请日：2017-03-07

Applicant: KCM Corporation

Inventor： Takashi Takeyama ,  Hiroyuki Kizaki ,  Yoshihiro Itou

IPC: F01N3/20 ,  E02F9/08 ,  F01N3/10 ,  F01N3/28 ,  B60K13/04 ,  F01N13/00 ,  E02F3/34

Abstract: An oxidation catalyst device is placed so that a central axis of the oxidation catalyst device may be oriented along a right and left direction of a work vehicle; a reducing agent injection device is placed so that a central axis of the reducing agent injection device may be oriented along a front and rear direction of the work vehicle; and a selective catalytic reduction device is placed so that a central axis of the selective catalytic reduction device may be oriented along the front and rear direction of the work vehicle, in which the oxidation catalyst device, the reducing agent injection device, and the selective catalytic reduction device are arranged so as to have a relationship that the central axes thereof become the same in height, and the central axis of the selective catalytic reduction device is placed so as to pass through the oxidation catalyst device.