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11. 发明专利

DE69913402D1 未知
公开(公告)号：DE69913402D1
公开(公告)日：2004-01-22
申请号：DE69913402
申请日：1999-02-26
申请人： NGK INSULATORS LTD
发明人： KASAI YOSHIYUKI , UMEHARA KAZUHIKO , KOTANI WATARU
IPC分类号： F28D17/02 , F28F21/04 , F23L15/02
摘要： A honeycomb regenerator for receiving a waste heat in an exhaust gas by passing an exhaust gas and a gas to be heated alternately therethrough, which is constructed by stacking a plurality of honeycomb structural bodies, is disclosed. In the honeycomb regenerator according to the invention, cell open rates of the honeycomb structural bodies positioned at an inlet portion of the exhaust gas and at an inlet portion of the gas to be heated are larger than those of the honeycomb structural bodies positioned at a center portion.

12. 发明专利

DE60017869D1 未知
公开(公告)号：DE60017869D1
公开(公告)日：2005-03-10
申请号：DE60017869
申请日：2000-08-31
申请人： JFE ENG CORP , NIPPON FURNACE KOGYO K K , NGK INSULATORS LTD
发明人： SUZUKAWA YUTAKA , MORI ISAO , NAGOSHI MASAYASU , TADA TAKESHI , SUDO JUN , KASAI YOSHIYUKI , UMEHARA KAZUHIKO
IPC分类号： F23L15/02 , F28D20/00 , E21B21/10 , F27D17/00
摘要： A heat treatment equipment having a heating chamber having a plurality of regenerative combustors provided with direct-fired burner having a built-in porous regenerator, for applying a heat treatment to an object in the heating chamber, wherein the substantial average surface pore diameter is not uniform for porous regenerators in a plurality of direct-fired burners or a plurality of regenerative combustors. By making contrivances in the shape of porous regenerators of the direct-fired burners or the regenerative heat exchangers arranged in an area where substances causing choking tend to easily adhere to make it difficult for such substances to adhere or prevent choking phenomenon from becoming apparent.

13. 发明专利

DE4428214A1 Method and device for the treatment of an exhaust gas and honeycomb structured exhaust filter 未知
公开(公告)号：DE4428214A1
公开(公告)日：1995-02-16
申请号：DE4428214
申请日：1994-08-09
申请人： NGK INSULATORS LTD
发明人： HIJIKATA TOSHIHIKO , HIRAOKA TETSUYA , UMEHARA KAZUHIKO
IPC分类号： B01D46/00 , B01D46/24 , F01N3/022 , F01N3/023 , F01N3/027 , F01N3/031 , F01N3/02 , B01D46/34
摘要： A method for the treatment of exhaust gas by catching fine particulate substances in the exhaust gas flowing out of an internal combustion engine using a honeycomb structured filter comprises the following stages: (1) Catching of the fine particulate substances contained in the exhaust gas as the exhaust gases pass through the filter; (2) Stopping of the flow of exhaust gas through the filter and transfer of the fine particulate substances caught to a point remote from and outside an exhaust line as the fine particulate substances caught by the filter flow in a direction which is opposed to a direction of flow of the exhaust gas and (3) combustion of the fine particulate substances and release of the combustion residues to the outside. The filter preferably has a honeycomb structured body and second sealed sections in first and second rows at opposing ends of the honeycomb structured body. Gas flow inlet passages are in each case provided close to and upstream of the first sealed sections in one of the first rows respectively and pass through inner walls of one of the first rows respectively, whilst each of the gas flow inlet passages passes through an outer peripheral wall of the honeycomb structured body at at least one of its opposite ends.

14. 发明专利

JPH11248378A HONEYCOMB HEAT ACCUMULATOR 失效
公开(公告)号：JPH11248378A
公开(公告)日：1999-09-14
申请号：JP4729698
申请日：1998-02-27
申请人： NGK INSULATORS LTD
发明人： KASAI YOSHIYUKI , UMEHARA KAZUHIKO , KOTANI WATARU
IPC分类号： F28D17/02 , F28F21/04
摘要： PROBLEM TO BE SOLVED: To protect a honeycomb structure for recovering waste heat in exhaust gas by passing exhaust gas and gas to be heated alternately through a channel against damage at the time of removing low temperature solidification components by setting the cell aperture on the side for introducing exhaust gas and gas to be heated larger than that at a hollow section. SOLUTION: The honeycomb heat accumulator 1 is constructed by stacking a plurality of rectangular prism honeycomb structures 2 so that channels each comprising a through hole 3 are arranged in one direction. For example, upper high temperature side honeycomb structure 2 touches exhaust gas and lower low temperature side honeycomb structure 2 touches a measuring gas. Cell apertures of the high temperature side and low temperature side honeycomb structures 2 are set larger than that of the central honeycomb structure 2. Preferably, the honeycomb structures 2 comprise alumina, cordierite, mullite, aluminum titanate, silicon carbide, zirconia, ceramic, or the like.

15. 发明专利

JPH1130491A HONEYCOMB HEAT STORAGE STRUCTURE 失效
公开(公告)号：JPH1130491A
公开(公告)日：1999-02-02
申请号：JP18494997
申请日：1997-07-10
申请人： NGK INSULATORS LTD
发明人： KASAI YOSHIYUKI , UMEHARA KAZUHIKO , KOTANI WATARU
IPC分类号： F28D17/02 , F28D20/00
摘要： PROBLEM TO BE SOLVED: To provide a honeycomb heat storage structure in which it is protected against even high temperature waste gas and is effectually heat exchanged, and effectually demonstrate a cost merit including the running cost. SOLUTION: A honeycomb heat storage structure 1 is adapted such that it is constructed by superimposing a plurality of honeycomb structures 2, and it recovers waste heat in waste gas by alternately passing the waste gas and gas to be heated to a flow passage composed of a through-hole 3. In the structure, voids of the honeycomb structure 2 on a high temperature side that at least makes contact with high temperature waste gas are lower than that of the honeycomb structure 2 on a low temperature side other than the former voids, and the high and low temperature side honeycomb structures 2 are constructed with a same raw material.

16. 发明专利

JPH0754633A EXHAUST GAS FILTER 失效
公开(公告)号：JPH0754633A
公开(公告)日：1995-02-28
申请号：JP19841093
申请日：1993-08-10
申请人： NGK INSULATORS LTD
发明人： UMEHARA KAZUHIKO , HIRAOKA TETSUYA
IPC分类号： F01N3/02
摘要： PURPOSE:To provide an exhaust gas filter for separating minute particles whose main component is carbon deposited on an exhaust gas filter by air flow, so as to regenerate the exhaust gas filter, and maintaining the good collecting function of minute particles without increasing pressure loss of exhaust gas. CONSTITUTION:In an exhaust gas filter 10, a honeycomb structural body is used for an exhaust gas filter, and first sealing part 21 is formed on the end of the exhaust gas downstream side of a same line gas circulating hole 12, and a second sealing part is formed on the end of the exhaust gas upstream side of the same line gas circulating hole 12, and sub pulse air flow introducing holes 23 are formed by penetrating inner walls 11 and an outer wall 13 in the same line direction near the exhaust gas upstream side of the first sealing part 21. Sub pulse air flow is injected from the outside of the outer wall 13 of the exhaust gas filter 10 into this sub pulse air flow introducing holes 23, thereby minute particles deposited near the first sealing part 21 are separated.

17. 发明专利

JPH11291220A PRODUCTION OF CERAMIC HONEYCOMB STRUCTURE 失效
公开(公告)号：JPH11291220A
公开(公告)日：1999-10-26
申请号：JP12943398
申请日：1998-04-03
申请人： NGK INSULATORS LTD , MITSUBISHI MOTORS CORP
发明人： AKAO YOSHIYUKI , NAKAZAWA NORIO , OGITA KOJI , UMEHARA KAZUHIKO , KASAI YOSHIYUKI
IPC分类号： F01N3/02 , B01D39/20 , B28B3/26 , C04B38/00
摘要： PROBLEM TO BE SOLVED: To provide a production method which can form the central hole for transmitting torque or the groove of the peripheral part of a rotary heat exchange member comprising a ceramic honeycomb structure such as an EGR cooler easily and inexpensively. SOLUTION: In the production of a honeycomb structure of a ceramic such as cordierite, when an extruded honeycomb raw material 12' kept flexibility, a punch 68 is used to form a central hole or a groove by pressing, or when an extruded honeycomb raw material 12' is soft after drying, the central hole or the groove is formed by pressing with an inexpensive general purpose tool.

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