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公开(公告)号：US12208672B2
公开(公告)日：2025-01-28
申请号：US17777195
申请日：2020-10-29
Applicant: Komatsu Ltd.
Inventor： Masahiro Ikeda , Kazuya Imamura , Takaaki Mizokami , Naotsuna Matsuda , Takeshi Nakagawa , Naoya Ando
Abstract: A work machine includes: a partition member provided with an intake port and an exhaust port and forming an engine room; an engine disposed in the engine room; a cooling fan disposed on an intake port side of the engine in the engine room; an exhaust pipe discharging exhaust gas from the engine; and an exhaust duct disposed in the engine room and having an inflow port into which air from the cooling fan flows, and an outflow port. At least a portion of the exhaust duct is disposed above the engine and has a facing surface facing the engine and a through-hole provided in the facing surface. At least a portion of the exhaust pipe is disposed in the through-hole. A gap is formed between an outer surface of the exhaust pipe and an inner surface of the through-hole.
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公开(公告)号：US20220410694A1
公开(公告)日：2022-12-29
申请号：US17777195
申请日：2020-10-29
Applicant: Komatsu Ltd.
Inventor： Masahiro Ikeda , Kazuya Imamura , Takaaki Mizokami , Naotsuna Matsuda , Takeshi Nakagawa , Naoya Ando
Abstract: A work machine includes: a partition member provided with an intake port and an exhaust port and forming an engine room; an engine disposed in the engine room; a cooling fan disposed on an intake port side of the engine in the engine room; an exhaust pipe discharging exhaust gas from the engine; and an exhaust duct disposed in the engine room and having an inflow port into which air from the cooling fan flows, and an outflow port. At least a portion of the exhaust duct is disposed above the engine and has a facing surface facing the engine and a through-hole provided in the facing surface. At least a portion of the exhaust pipe is disposed in the through-hole. A gap is formed between an outer surface of the exhaust pipe and an inner surface of the through-hole.
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