Title:
EXHAUST HEAT RECOVERY DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/085387
Kind Code:
A1
Abstract:
A communication hole 21 is positioned upstream of a heat exchanger 14. A first flow path 30 has a branch path 31 that branches a flow of exhaust gas with the positioning of the communication hole 21. Upstream of the branch path 31, a narrow path 35 in which a flow path area narrows toward the branch path 31 is positioned. An area B2 of an opening 105 opened and closed by a valve 100 is larger than a minimum flow path area B1 in the narrow path 35. Behind the valve 100, a flow path area B3 at an arbitrary position in a third flow path 80 is equal to or larger than the area B2 of the opening 105 opened and closed by the valve 100 (B1 < B2 ≦ B3).
Inventors:
UCHIDA TOMOYUKI (JP)
SUZUKI KOZUE (JP)
KOIKE KYOHEI (JP)
SUZUKI KOZUE (JP)
KOIKE KYOHEI (JP)
Application Number:
PCT/JP2021/036038
Publication Date:
April 28, 2022
Filing Date:
September 30, 2021
Export Citation:
Assignee:
YUTAKA GIKEN CO LTD (JP)
International Classes:
F01N5/02; F01N13/08
Foreign References:
| JP2018119418A | 2018-08-02 | |||
| JP2007247638A | 2007-09-27 | |||
| JP2009024565A | 2009-02-05 |
Attorney, Agent or Firm:
SHIMODA, Yo-ichiro et al. (JP)
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