公开(公告)号：DE69117289D1

公开(公告)日：1996-03-28

申请号：DE69117289

申请日：1991-06-12

Applicant: CATALYTICA INC

Inventor： DALLA BETTA RALPH ,  REED DANIEL ,  SCHUBERT PRISCILLA

IPC: F02B1/04 ,  G01N25/30 ,  G01N27/14 ,  G01N33/00 ,  G01N25/20 ,  G01N27/00 ,  G01N21/00 ,  F28D7/00 ,  B01J19/00

Abstract: This invention is a self-contained NOx sensor assembly. It may be used to detect NOx levels in a flowing gas stream such as might be found in an exhaust gas from a combustion process and to produce a measurable electrical output related to the content of NOx measured. The NOx sensor assembly is of a configuration that may be detached from a mounting and replaced. The sensor assembly comprises two sensor elements one of which is made up of a catalyst on a temperature measuring device. The other is a gas stream ambient temperature measuring device. The catalyst is selected and configured so that it selectively reduces NOx and the resulting heat of the reaction raises the temperature of the allied temperature measuring device. The sensor assembly also contains a NOx reductant source. The sensor assembly may be placed in a moving vehicle for measuring NOx levels in its exhaust gas.

公开(公告)号：AT134446T

公开(公告)日：1996-03-15

申请号：AT91911705

申请日：1991-06-12

Applicant: CATALYTICA INC

Inventor： DALLA BETTA RALPH D ,  REED DANIEL L ,  SCHUBERT PRISCILLA

IPC: F02B1/04 ,  G01N25/30 ,  G01N27/14 ,  G01N33/00 ,  G01N25/20 ,  G01N27/00 ,  G01N21/00 ,  F28D7/00 ,  B01J19/00

Abstract: This invention is a self-contained NOx sensor assembly. It may be used to detect NOx levels in a flowing gas stream such as might be found in an exhaust gas from a combustion process and to produce a measurable electrical output related to the content of NOx measured. The NOx sensor assembly is of a configuration that may be detached from a mounting and replaced. The sensor assembly comprises two sensor elements one of which is made up of a catalyst on a temperature measuring device. The other is a gas stream ambient temperature measuring device. The catalyst is selected and configured so that it selectively reduces NOx and the resulting heat of the reaction raises the temperature of the allied temperature measuring device. The sensor assembly also contains a NOx reductant source. The sensor assembly may be placed in a moving vehicle for measuring NOx levels in its exhaust gas.

公开(公告)号：DE69117289T2

公开(公告)日：1996-09-05

申请号：DE69117289

申请日：1991-06-12

Applicant: CATALYTICA INC

Inventor： DALLA BETTA RALPH ,  REED DANIEL ,  SCHUBERT PRISCILLA

IPC: F02B1/04 ,  G01N25/30 ,  G01N27/14 ,  G01N33/00 ,  G01N25/20 ,  G01N27/00 ,  G01N21/00 ,  F28D7/00 ,  B01J19/00

Abstract: This invention is a self-contained NOx sensor assembly. It may be used to detect NOx levels in a flowing gas stream such as might be found in an exhaust gas from a combustion process and to produce a measurable electrical output related to the content of NOx measured. The NOx sensor assembly is of a configuration that may be detached from a mounting and replaced. The sensor assembly comprises two sensor elements one of which is made up of a catalyst on a temperature measuring device. The other is a gas stream ambient temperature measuring device. The catalyst is selected and configured so that it selectively reduces NOx and the resulting heat of the reaction raises the temperature of the allied temperature measuring device. The sensor assembly also contains a NOx reductant source. The sensor assembly may be placed in a moving vehicle for measuring NOx levels in its exhaust gas.

公开(公告)号：AU8008591A

公开(公告)日：1992-01-07

申请号：AU8008591

申请日：1991-06-12

Applicant: CATALYTICA INC

Inventor： BETTA RALPH D DALLA ,  REED DANIEL L ,  SCHUBERT PRISCILLA

IPC: F02B1/04 ,  G01N25/30 ,  G01N27/14 ,  G01N33/00 ,  G01N25/20 ,  G01N27/00 ,  G01N21/00 ,  F28D7/00 ,  B01J19/00

Abstract: This invention is a self-contained NOx sensor assembly. It may be used to detect NOx levels in a flowing gas stream such as might be found in an exhaust gas from a combustion process and to produce a measurable electrical output related to the content of NOx measured. The NOx sensor assembly is of a configuration that may be detached from a mounting and replaced. The sensor assembly comprises two sensor elements one of which is made up of a catalyst on a temperature measuring device. The other is a gas stream ambient temperature measuring device. The catalyst is selected and configured so that it selectively reduces NOx and the resulting heat of the reaction raises the temperature of the allied temperature measuring device. The sensor assembly also contains a NOx reductant source. The sensor assembly may be placed in a moving vehicle for measuring NOx levels in its exhaust gas.

公开(公告)号：ES2084170T3

公开(公告)日：1996-05-01

申请号：ES91911705

申请日：1991-06-12

Applicant: CATALYTICA INC

Inventor： DALLA BETTA RALPH D ,  REED DANIEL L ,  SCHUBERT PRISCILLA

IPC: F02B1/04 ,  G01N25/30 ,  G01N27/14 ,  G01N33/00 ,  G01N25/20 ,  G01N27/00 ,  G01N21/00 ,  F28D7/00 ,  B01J19/00

Abstract: This invention is a self-contained NOx sensor assembly. It may be used to detect NOx levels in a flowing gas stream such as might be found in an exhaust gas from a combustion process and to produce a measurable electrical output related to the content of NOx measured. The NOx sensor assembly is of a configuration that may be detached from a mounting and replaced. The sensor assembly comprises two sensor elements one of which is made up of a catalyst on a temperature measuring device. The other is a gas stream ambient temperature measuring device. The catalyst is selected and configured so that it selectively reduces NOx and the resulting heat of the reaction raises the temperature of the allied temperature measuring device. The sensor assembly also contains a NOx reductant source. The sensor assembly may be placed in a moving vehicle for measuring NOx levels in its exhaust gas.

公开(公告)号：BR9106548A

公开(公告)日：1993-06-01

申请号：BR9106548

申请日：1991-06-12

Applicant: CATALYTICA INC

Inventor： BETTA RALPH D DALLA ,  REED DANIEL L ,  SCHUBERT PRISCILLA

IPC: F02B1/04 ,  G01N25/30 ,  G01N27/14 ,  G01N33/00 ,  G01N25/20 ,  G01N27/00

Abstract: This invention is a self-contained NOx sensor assembly. It may be used to detect NOx levels in a flowing gas stream such as might be found in an exhaust gas from a combustion process and to produce a measurable electrical output related to the content of NOx measured. The NOx sensor assembly is of a configuration that may be detached from a mounting and replaced. The sensor assembly comprises two sensor elements one of which is made up of a catalyst on a temperature measuring device. The other is a gas stream ambient temperature measuring device. The catalyst is selected and configured so that it selectively reduces NOx and the resulting heat of the reaction raises the temperature of the allied temperature measuring device. The sensor assembly also contains a NOx reductant source. The sensor assembly may be placed in a moving vehicle for measuring NOx levels in its exhaust gas.

公开(公告)号：EP0529000A4

公开(公告)日：1994-09-07

申请号：EP91911705

申请日：1991-06-12

Applicant: CATALYTICA INC ,  WHEELOCK E THOMAS

Inventor： DALLA BETTA RALPH D ,  REED DANIEL L ,  SCHUBERT PRISCILLA

IPC: F02B1/04 ,  G01N25/30 ,  G01N27/14 ,  G01N33/00 ,  B01J19/00 ,  F28D7/00 ,  G01N21/00 ,  G01N25/20 ,  G01N27/00

CPC classification number: G01N33/0037 ,  F02B1/04 ,  G01N25/30 ,  Y02A50/245

Abstract: This invention is a self-contained NOx sensor assembly. It may be used to detect NOx levels in a flowing gas stream such as might be found in an exhaust gas from a combustion process and to produce a measurable electrical output related to the content of NOx measured. The NOx sensor assembly is of a configuration that may be detached from a mounting and replaced. The sensor assembly comprises two sensor elements one of which is made up of a catalyst on a temperature measuring device. The other is a gas stream ambient temperature measuring device. The catalyst is selected and configured so that it selectively reduces NOx and the resulting heat of the reaction raises the temperature of the allied temperature measuring device. The sensor assembly also contains a NOx reductant source. The sensor assembly may be placed in a moving vehicle for measuring NOx levels in its exhaust gas.