Title:
EXHAUST GAS HEATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/203859
Kind Code:
A1
Abstract:
Provided is an exhaust gas heating device that is able to suppress the deterioration of a connection part connected to an electrode of a heater unit. This exhaust gas heating device (10, 210, 310, 410) is provided with a heater unit (20), a cylinder unit (30), and connecting units (40, 240). The heater unit (20) is provided with a first electrode unit (22), a heat generating unit (24), and a second electrode unit (28, 428), wherein one end surface (24A) of the heat generating unit (24) is disposed further toward the upstream side in an exhaust flow path (110) than the other end surface (24B), and a space through which the exhaust gas flows is configured between the one end surface (24A) and the other end surface (24B). The cylinder unit (30) is disposed to surround the outer circumferential surface (24C) of the heat generating unit (24) and holds the heater unit (20) therein. The connecting units (40, 240) are disposed further toward the downstream side than the other end surface (24B) in the exhaust flow path (110), and are electrically connected to the first electrode part (22) and a conductor unit provided further toward the cylinder unit (30) than the first electrode unit (22).
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Inventors:
YOSHIKAWA TAKAYA (JP)
Application Number:
PCT/JP2020/014244
Publication Date:
October 08, 2020
Filing Date:
March 27, 2020
Export Citation:
Assignee:
NGK SPARK PLUG CO (JP)
International Classes:
F01N3/20; F01N3/24
Foreign References:
| JPH06108831A | 1994-04-19 | |||
| JPH0639294A | 1994-02-15 | |||
| JP2006099968A | 2006-04-13 |
Attorney, Agent or Firm:
GRANDOM PATENT LAW FIRM (JP)
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