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1. 发明专利

DE60003595T2 未知
公开(公告)号：DE60003595T2
公开(公告)日：2003-12-24
申请号：DE60003595
申请日：2000-03-15
申请人： NISSAN MOTOR
发明人： SHIBATA KATSUHIRO , OOUCHI KEN , ITOU HIDETOSHI , NISHIZAWA KIMIYOSHI
IPC分类号： F01N3/28 , F16J15/08
摘要： For resiliently and safely supporting a monolith (4) in a housing (3), a supporting structure is proposed. An annular seat structure (9) is defined in the housing. An annular resilient washer (21) is made of wire mesh and is put on the annular seat structure for supporting thereon a circular peripheral edge (4a) of the monolith. A biasing structure biases the monolith toward the annular resilient washer to compress the washer. The washer has a generally rectangular cross section and has a chamfered surface around a circular outer surface thereof. The chamfered surface is positioned radially outside the circular peripheral edge of the monolith. With this, even when compressed by the monolith, the washer is prevented from producing a biasing force for pulling the circular peripheral edge of the monolith radially outward, and thus, damage of the edge is suppressed.

2. 发明专利

DE602005000816D1 未知
公开(公告)号：DE602005000816D1
公开(公告)日：2007-05-16
申请号：DE602005000816
申请日：2005-12-22
申请人： NISSAN MOTOR
发明人： AIDA MAKOTO , SHIBATA KATSUHIRO
IPC分类号： F01N3/28
摘要： An exhaust gas purification device (6) comprises: first and second catalyst carriers (21, 22) interposed in an exhaust passage (8) of an engine (1), which purify an exhaust gas; a case (20) provided in the exhaust passage, which houses the first and second catalyst carriers (21, 22) in series in an exhaust gas flow direction; an annular carrier holder (24) interposed between the first and second catalyst carriers (21, 22), which holds the first and second catalyst carriers (21, 22) via a buffering member (23) and has an opening (34) which connects an inner peripheral side and an outer peripheral side; a sensor (10) which detects the state of the exhaust gas flowing through the interior of the case (20); and a sensor attachment portion (26) provided in the case (20), which connects the interior and exterior of the case (20) in an orientation that is substantially orthogonal to the exhaust gas flow direction. The sensor attachment portion (26) is provided in a position corresponding to the opening (34) when the carrier holder (24) is housed in the case.

3. 发明专利

DE60003595D1 未知
公开(公告)号：DE60003595D1
公开(公告)日：2003-08-07
申请号：DE60003595
申请日：2000-03-15
申请人： NISSAN MOTOR
发明人： SHIBATA KATSUHIRO , OOUCHI KEN , ITOU HIDETOSHI , NISHIZAWA KIMIYOSHI
IPC分类号： F01N3/28 , F16J15/08
摘要： For resiliently and safely supporting a monolith (4) in a housing (3), a supporting structure is proposed. An annular seat structure (9) is defined in the housing. An annular resilient washer (21) is made of wire mesh and is put on the annular seat structure for supporting thereon a circular peripheral edge (4a) of the monolith. A biasing structure biases the monolith toward the annular resilient washer to compress the washer. The washer has a generally rectangular cross section and has a chamfered surface around a circular outer surface thereof. The chamfered surface is positioned radially outside the circular peripheral edge of the monolith. With this, even when compressed by the monolith, the washer is prevented from producing a biasing force for pulling the circular peripheral edge of the monolith radially outward, and thus, damage of the edge is suppressed.

4. 发明专利

DE60209005D1 未知
公开(公告)号：DE60209005D1
公开(公告)日：2006-04-13
申请号：DE60209005
申请日：2002-04-30
申请人： NISSAN MOTOR
发明人： YAMAGUCHI YASUAKI , SHIBATA KATSUHIRO , OOUCHI KEN , NISHIZAWA KIMIYOSHI
IPC分类号： F01N3/28 , F01N3/037
摘要： An exhaust gas purification apparatus for an automotive internal combustion engine. The apparatus comprises a casing that forms a part of an exhaust gas passage of the engine. A substrate, disposed in the casing, carries a substrate to purify exhaust gas. A supporting mat is provided to support the substrate in the casing by being located between the substrate and the casing. The supporting mat has a depression to trap foreign matters at an upstream-side end of the supporting mat, the upstream-side end facing upstream side of exhaust gas flow in the exhaust gas passage.

5. 发明专利

DE60301098T2 未知
公开(公告)号：DE60301098T2
公开(公告)日：2006-01-12
申请号：DE60301098
申请日：2003-07-29
申请人： NISSAN MOTOR
发明人： ASHIDA MASAAKI , NISHIZAWA KIMIYOSHI , SHIBATA KATSUHIRO
IPC分类号： F01N3/24 , F01N3/28 , F01N13/08 , F01N13/10 , F01N13/18
摘要： An exhaust manifold (2) of an engine exhaust apparatus includes a plurality of exhaust branches (B1-B4) and a straight pipe section (SP). The exhaust branches (B1-B4) extend toward a confluence portion (SP) from respective upstream ends (21) to be connected with cylinders of an engine. The straight pipe section (SP) extends from the confluence portion towards a dowstream end adapted to be connected to an exhaust purifying catalyst.

6. 发明专利

DE60000798D1 未知
公开(公告)号：DE60000798D1
公开(公告)日：2003-01-02
申请号：DE60000798
申请日：2000-03-15
申请人： NISSAN MOTOR
发明人： SHIBATA KATSUHIRO , NISHIZAWA KIMIYOSHI , OOUCHI KEN
IPC分类号： F01N3/28
摘要： A catalytic converter (1) for purifying exhaust gas discharged from an automotive internal combustion engine. The catalytic converter comprises a casing (3) in which a monolithic catalyst carrier (4) is disposed. An annular cap (22a) is fixedly disposed inside the casing and located generally coaxial with the monolithic catalyst carrier. The annular cap is located near an end face (E1) of the monolithic catalyst carrier. The cap includes annular bottom (23), inner (24) and outer walls (25). The inner and outer walls are separate from each other and extend from the bottom wall. The inner wall is located radially inward of the outer wall. The bottom, inner and outer walls are arranged generally U-shaped in cross-section so as to form a groove. Additionally, an annular elastic washer (21A) is coaxially disposed within the groove of the annular cap. The elastic washer is disposed in press contact with the end face of the monolithic catalyst carrier to axially elastically support the monolithic catalyst carrier. The annular elastic washer is an annular molded structure of wire mesh. The annular elastic washer has an inner peripheral face which has a diameter larger than a diameter of an outer peripheral surface of the inner wall of the cap so as to form a clearance between the elastic washer and the inner wall of the cap in a state where the elastic washer is assembled in the casing upon being compressed.

7. 发明专利

DE60301098D1 未知
公开(公告)号：DE60301098D1
公开(公告)日：2005-09-01
申请号：DE60301098
申请日：2003-07-29
申请人： NISSAN MOTOR
发明人： ASHIDA MASAAKI , NISHIZAWA KIMIYOSHI , SHIBATA KATSUHIRO
IPC分类号： F01N3/24 , F01N3/28 , F01N13/08 , F01N13/10 , F01N13/18 , F01N7/10 , F01N7/08
摘要： An exhaust manifold (2) of an engine exhaust apparatus includes a plurality of exhaust branches (B1-B4) and a straight pipe section (SP). The exhaust branches (B1-B4) extend toward a confluence portion (SP) from respective upstream ends (21) to be connected with cylinders of an engine. The straight pipe section (SP) extends from the confluence portion towards a dowstream end adapted to be connected to an exhaust purifying catalyst.

8. 发明专利

DE60000798T2 未知
公开(公告)号：DE60000798T2
公开(公告)日：2003-04-03
申请号：DE60000798
申请日：2000-03-15
申请人： NISSAN MOTOR
发明人： SHIBATA KATSUHIRO , NISHIZAWA KIMIYOSHI , OOUCHI KEN
IPC分类号： F01N3/28
摘要： A catalytic converter (1) for purifying exhaust gas discharged from an automotive internal combustion engine. The catalytic converter comprises a casing (3) in which a monolithic catalyst carrier (4) is disposed. An annular cap (22a) is fixedly disposed inside the casing and located generally coaxial with the monolithic catalyst carrier. The annular cap is located near an end face (E1) of the monolithic catalyst carrier. The cap includes annular bottom (23), inner (24) and outer walls (25). The inner and outer walls are separate from each other and extend from the bottom wall. The inner wall is located radially inward of the outer wall. The bottom, inner and outer walls are arranged generally U-shaped in cross-section so as to form a groove. Additionally, an annular elastic washer (21A) is coaxially disposed within the groove of the annular cap. The elastic washer is disposed in press contact with the end face of the monolithic catalyst carrier to axially elastically support the monolithic catalyst carrier. The annular elastic washer is an annular molded structure of wire mesh. The annular elastic washer has an inner peripheral face which has a diameter larger than a diameter of an outer peripheral surface of the inner wall of the cap so as to form a clearance between the elastic washer and the inner wall of the cap in a state where the elastic washer is assembled in the casing upon being compressed.

9. 发明专利

DE602005000816T2 未知
公开(公告)号：DE602005000816T2
公开(公告)日：2007-08-02
申请号：DE602005000816
申请日：2005-12-22
申请人： NISSAN MOTOR
发明人： AIDA MAKOTO , SHIBATA KATSUHIRO
IPC分类号： F01N3/28
摘要： An exhaust gas purification device (6) comprises: first and second catalyst carriers (21, 22) interposed in an exhaust passage (8) of an engine (1), which purify an exhaust gas; a case (20) provided in the exhaust passage, which houses the first and second catalyst carriers (21, 22) in series in an exhaust gas flow direction; an annular carrier holder (24) interposed between the first and second catalyst carriers (21, 22), which holds the first and second catalyst carriers (21, 22) via a buffering member (23) and has an opening (34) which connects an inner peripheral side and an outer peripheral side; a sensor (10) which detects the state of the exhaust gas flowing through the interior of the case (20); and a sensor attachment portion (26) provided in the case (20), which connects the interior and exterior of the case (20) in an orientation that is substantially orthogonal to the exhaust gas flow direction. The sensor attachment portion (26) is provided in a position corresponding to the opening (34) when the carrier holder (24) is housed in the case.

10. 发明专利

DE60209005T2 未知
公开(公告)号：DE60209005T2
公开(公告)日：2006-07-13
申请号：DE60209005
申请日：2002-04-30
申请人： NISSAN MOTOR
发明人： YAMAGUCHI YASUAKI , SHIBATA KATSUHIRO , OOUCHI KEN , NISHIZAWA KIMIYOSHI
IPC分类号： F01N3/28 , F01N3/037
摘要： An exhaust gas purification apparatus for an automotive internal combustion engine. The apparatus comprises a casing that forms a part of an exhaust gas passage of the engine. A substrate, disposed in the casing, carries a substrate to purify exhaust gas. A supporting mat is provided to support the substrate in the casing by being located between the substrate and the casing. The supporting mat has a depression to trap foreign matters at an upstream-side end of the supporting mat, the upstream-side end facing upstream side of exhaust gas flow in the exhaust gas passage.

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