公开(公告)号：US20190314752A1

公开(公告)日：2019-10-17

申请号：US16452937

申请日：2019-06-26

Applicant: DENSO CORPORATION

Inventor： Yasushi TAKAYAMA ,  Shusaku YAMAMURA

IPC: B01D46/24 ,  B01D39/20 ,  C04B38/00 ,  C04B35/195

Abstract: Provided is a porous honeycomb filter comprising a porous first cell wall that permits exhaust gas to permeate, a second cell wall that permits exhaust gas to permeate than the first cell wall, and a cell that is surrounded by the first cell wall and the second cell wall to form an extending gas flow passage. The second cell wall has a smaller porosity than the first cell wall.

公开(公告)号：US20200080953A1

公开(公告)日：2020-03-12

申请号：US16682078

申请日：2019-11-13

Applicant: DENSO CORPORATION

Inventor： Kota YAMAKOSHI ,  Shingo NAKATA ,  Shusaku YAMAMURA

IPC: G01N27/04 ,  F01N13/00 ,  G01M15/10

Abstract: A particulate matter detection system detects a particulate matter in exhaust gas. The particulate matter detection system includes: a particulate matter detection sensor in which at least one detection portion is provided, the at least one detection portion including at least one pair of multiple electrodes and a deposition surface which is interposed between the pair of electrodes and which the particulate matter is deposited on; a capacitor connected to the at least one detection portion in series; a power supply configured to apply a direct voltage to a series body including the at least one detection portion and the capacitor; and a voltage measurement portion configured to measure a voltage of the capacitor.