公开(公告)号：US11629674B2

公开(公告)日：2023-04-18

申请号：US17879223

申请日：2022-08-02

Applicant: DENSO CORPORATION

Inventor： Hideki Hayashi ,  Yuichiro Moritani ,  Shogo Tateishi

IPC: F02B47/08 ,  F02M26/72 ,  F16K11/18 ,  F02D41/00 ,  F16K31/524 ,  F02M26/22

Abstract: A valve device increases or decreases a flow rate of EGR gas. The valve device includes a housing, a bypass valve body, an EGR valve body. The housing includes a first upstream passage into which the EGR gas cooled by an EGR cooler flows, a second upstream passage into which the EGR gas that bypasses the EGR cooler flows, a junction connected to each of a gas-flow downstream side of the first upstream passage and a gas-flow downstream side of the second upstream passage, and a downstream passage connected to the first upstream passage and the second upstream passage via the junction. The bypass valve body opens and closes the second upstream passage. The EGR valve body is provided in the downstream passage, rotates around an EGR valve axis.

公开(公告)号：US12247532B2

公开(公告)日：2025-03-11

申请号：US17879206

申请日：2022-08-02

Applicant: DENSO CORPORATION

Inventor： Shogo Tateishi ,  Yuichiro Moritani ,  Hideki Hayashi

IPC: F02M26/54 ,  F02M26/26 ,  F02M26/70 ,  F02M26/72 ,  F16K31/524 ,  F16K31/53

Abstract: A valve device increases or decreases a flow rate of EGR gas. The valve device includes a housing, a bypass valve body, an EGR valve body. The housing includes: a first upstream passage into which the EGR gas cooled by an EGR cooler flows; a second upstream passage into which the EGR gas that bypasses the EGR cooler flows; a junction connected to each of a gas-flow downstream of the first upstream passage and a gas-flow downstream of the second upstream passage; and a downstream passage connected to the first upstream passage and the second upstream passage via the junction. The bypass valve body is provided in the second upstream passage. The EGR valve body is provided in the downstream passage.