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11. 发明专利

JPH063082A HEAT EXCHANGER 失效
公开(公告)号：JPH063082A
公开(公告)日：1994-01-11
申请号：JP18163392
申请日：1992-06-17
申请人： TOYO RADIATOR CO LTD
发明人： WATANABE MASAMI , KAWAGUCHI SHIGEMITSU
IPC分类号： F28D9/00 , F28F3/00 , F28F3/08
摘要： PURPOSE:To eliminate the troubles such as separation of soldered part by a method wherein a flattened tube on the outermost side of a boss of a multiplate heat exchange element is offset inwardly and soldered to the boss and said boss is welded to a wall of a casing at a point spaced from the soldered part. CONSTITUTION:A heat exchange element 3 fitted in a casing 1 comprises a large number of plates 4 stacked in layers, wherein the plates 4 are combined together two by two and the periphery of the combined plates 4 are sealed to form a flattened tube 5. The tubes 5 are vertically arranged, spaced a predetermined distance (d) from each other, and on the upper surface of the uppermost tube 51, there are provided bosses 9a, 9b just above headers 8a, 8b. In said element 3, the tube 51 is provided at a position offset downwardly by a distance approximately equal to the distance (d). As a result, the length from a soldered part 10 of the boss to the welded part is made longer, preventing thereby the heat of the welding from exerting a bad influence on the part 10.

12. 发明专利

JPS6320157A BRAZING METHOD FOR HEADER PLATE OF INTER-COOLER 失效
公开(公告)号：JPS6320157A
公开(公告)日：1988-01-27
申请号：JP16528786
申请日：1986-07-14
申请人： TOYO RADIATOR CO LTD
发明人： WATANABE MASAMI
IPC分类号： F28F9/18 , B23K1/00 , B23K1/19
摘要： PURPOSE:To prevent the brazing part of a tube from being cracked, by expanding and opening an aperture of the tube and fixing it to the edge of a hole of a heater plate, in a state that the clearance of a pair of header plates is set to a length adding the thickness of a sealing member to length between both opening ends of a casing. CONSTITUTION:The clearance of both header plates 3, 3 is set to the length adding the thickness of the sealing member 10 to the length between both opening ends 2, 2. In such set state, the aperture of a tube 4 is expanded and opened, and the tube 4 is fixed to the edge of a hole 5 of the header plate 3. Thereafter, the tube 4 is heated by a flame from a burner nozzle 9 and the end part of the tube 4 is brazed and fixed to the hole 5 of the header plate 3. At the time of this brazing heating, the tube expands and the head plate 3 is separated from the opening end 2 of the casing 1, but when the tube 4 is cooled, the tube 4 is contracted, the header plate 3 contacts the casing 1 through the sealing member 10, and it does not occur that the residual stress is generated in the tube 4.

13. 发明专利

JPH06198199A CATALYST CARRIER FOR PURIFICATION OF EXHAUST GAS 失效
公开(公告)号：JPH06198199A
公开(公告)日：1994-07-19
申请号：JP36086392
申请日：1992-12-29
申请人： TOYO RADIATOR CO LTD
发明人： YAMANAKA AKIRA , WATANABE MASAMI
IPC分类号： B01J35/04
摘要： PURPOSE:To decrease the amt. of a brazing material, to decrease the production cost of a catalyst carrier, and to improve durability by forming a honeycomb body in such a manner that the brazing length of the contact part in the cross section parallel to the axis of the honeycomb body is gradually increased from the outside toward the center. CONSTITUTION:This carrier is formed in such a manner that the brazing length in the cross section parallel to the axis of a honeycomb body 3 is gradually increased from the surface toward the center. By this method, separation between a flat plate 1 and a wavy plate 2 due to flow of high temp. exhaust gas can efficiently be prevented. Namely, the high temp. exhaust gas flowing through the axial direction gives the higher flow rate and higher temp. in the inner area near the axis of the honeycomb body 3. Since the brazing length is increased according to these phenomena, scooping can be prevented and the obtd. carrier has high durability. Further, by decreasing the brazing length to the surface, the amt. of the brazing material can be decreased as small as possible, which relatively increases the coating amt. on the catalyst carrier and improves the purifying performance.

14. 发明专利

JPH063076A MANUFACTURE OF LAMINATED HEAT EXCHANGER 失效
公开(公告)号：JPH063076A
公开(公告)日：1994-01-11
申请号：JP18163292
申请日：1992-06-17
申请人： TOYO RADIATOR CO LTD
发明人： WATANABE MASAMI , SATO SHINJI
IPC分类号： B23K1/00 , F28D9/00 , F28F3/08
摘要： PURPOSE:To provide a method of manufacture of a laminated heat exchanger wherein a brazed part of a core is prevented from being affected by welding. CONSTITUTION:Upon manufacturing a laminated heat exchanger including a core 2 yielded by alternately laminating a plurality of plates 4 and fins 5 and brazing them with each other, and a tank 3 welded to the end surface of the core, the core is tentatively assembled by putting a brazing material between the constituent members 4, 5, 6 of the core 2. The tank 3 is welded to the end surface of the tentatively assembled core, and the entire structure is heated to braze the core component members through a brazing material.

15. 发明专利

JPH03174971A MANUFACTURE OF CORE IN HEAT EXCHANGER 失效
公开(公告)号：JPH03174971A
公开(公告)日：1991-07-30
申请号：JP31373989
申请日：1989-12-02
申请人： TOYO RADIATOR CO LTD
发明人： WATANABE MASAMI
IPC分类号： B23K1/00 , F28D1/053
摘要： PURPOSE:To form a core to three dimensional arc curved surface with bending work of a tube at one time by setting a flat tube and corrugate fin as arc state, brazing them and curvedly forming axis line of the tube so as to come to projection. CONSTITUTION:After integrally brazing only the core 3, end plate 5 and tube plate 4, a tank body is fitted to groove part in the tube plate 4 and brazed. In this way, the core in heat exchanger curved in the two dimensional plane is formed. Successively, this core is laid on a metallic mold, and by applying outer force, this is curved to three dimensions. Then, the core 3 is deformed so that the center axis line of the flat tube 1 curves. Parallel two planes formed at outer circumference of the flat tube 1 is curved as holding the plane condition. Further, the end plates 5 positioned at both sides of the core 3, too, are curved at the same time to obtain the heat exchanger.

16. 发明专利

JPH06255350A AIR CONDITIONER FOR AUTOMOBILE 失效
公开(公告)号：JPH06255350A
公开(公告)日：1994-09-13
申请号：JP7295893
申请日：1993-03-04
申请人： TOYO RADIATOR CO LTD
发明人： CHIKAMATSU NOBUTAKA , MORI SHIGEKI , WATANABE MASAMI , YOSHINO YASUSHI
IPC分类号： B60H1/22 , B60H1/08 , B60H1/32
摘要： PURPOSE:To enable the speedy warming and speedy coupling by partitioning a part in an air blow passage by a partitioning wall and installing each selector door on the upstream side and downstream side of a heat storage type heat exchanger arranged in one passage. CONSTITUTION:Heat exchangers 11 and 17 are arranged in an air blow passage 1 in the process where air is sucked from air suction ports 3 and 4 by a blowing fan 2 and air is discharged from an air discharge port for a car room, and the air blow temperature is adjusted through the drive control for the heat exchangers 11 and 17. A part in the air blow passage 1 is partitioned into two passages by partitioning walls 12 and 16, and heat storage type heat exchangers 13 and 18 are arranged in one passage, and selector doors 14, 19, 15 and 20 are installed on the upstream side and downstream side of the heat storage type heat exchangers,13 and 18. Accordingly, when the selector door is operated to close the heat storage type heat ehchanger side, the ordinary cooling or warming can be set, and the warmed state or cooled state can be maintained by keeping the heat storage type heat exchanger in a closed state, and the heat storage efficiency can be improved.

17. 发明专利

JPH0380970B2 失效
公开(公告)号：JPH0380970B2
公开(公告)日：1991-12-26
申请号：JP23121484
申请日：1984-11-05
申请人： TOYO RADIATOR CO LTD
发明人： WATANABE MASAMI
IPC分类号： F02B29/04 , F28F9/02

18. 发明专利

JPH07259625A EXHAUST SYSTEM TEMPERATURE ESTIMATING DEVICE OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH07259625A
公开(公告)日：1995-10-09
申请号：JP7665094
申请日：1994-03-23
申请人： HONDA MOTOR CO LTD
发明人： KATO AKIRA , WATANABE MASAMI
IPC分类号： F02D45/00 , F01N3/24 , F02D41/14
摘要： PURPOSE:To improve estimating precision of the exhaust system temperature by correcting the stationary temperature and/or the follow-up speed on the basis of the intake air temperature and the vehicle speed in an estimating device for the exhaust system temperature on the basis o the stationary temperature and the follow-up speed. CONSTITUTION:When the catalyst temperature is estimated by an air-fuel ratio controller in an ECU 5, the intake air temperature TA by a TA sensor 8 is set as an initial value of the catalyst temperature in judging of starting. While, the difference between the target estimated catalyst temperature and the catalyst temperature is calculated in not starting, and whether the difference is larger than 0 or not is judged. When the result is YES, a factor alpha1 for raising the catalyst temperature based on an integral value is table-retrieved, while, when the result is No, a factor a2 for lowering the catalyst temperature based on the integral value is retrieved. Next, a correction factor Kalpha of respective factors alpha1, alpha2 is determined on the basis of the vehicle speed V and the intake air temperature TA, and then the catalyst temperature is estimated on the basis of the corrected factor alpha, and the target estimated catalyst temperature to be determined by an intake pipe inside absolute pressure PBA, and an engine speed NE.

19. 发明专利

JPH07259601A AIR-FUEL RATIO CONTROLLER 失效
公开(公告)号：JPH07259601A
公开(公告)日：1995-10-09
申请号：JP7665194
申请日：1994-03-23
申请人： HONDA MOTOR CO LTD
发明人： KATO AKIRA , KITAGAWA HIROSHI , WATANABE MASAMI
IPC分类号： F02D45/00 , F01N3/24 , F02D41/14
摘要： PURPOSE:To estimate the air-fuel ratio of an exhaust gas entering a catalyst converter with good accuracy by providing oxygen sensors, an estimating means of air-fuel ratio just after exhaust and an estimating means of air-fuel ratio just before a catalyst and estimating the air-fuel ratio of the exhaust gas entering the catalyst converter. CONSTITUTION:Oxygen sensors 15 and 16 are provided in an exhaust passage upstream of the catalyst of an internal combustion engine 1. An air-fuel ratio feedback control quantity is calculated by a control quantity calculation 5 based on the outputs of the oxygen sensors 15 and 16. The air-fuel ratio of an air-fuel mixture fed to the internal combustion engine 1 based on the air-fuel ratio feedback control quantity is feedback controlled based on the air-fuel ratio feedback control quantity by an air-fuel ratio control means 5. At that time, an air-fuel ratio just after the exhaust of the internal combustion engine 1 is estimated based on the change from the average value of the air-fuel ratio feedback control quantity by an estimating means 5 of air-fuel ratio just after exhaust. An air-fuel ratio estimated by an estimating means 5 of air-fuel ratio just before a catalyst is moderately processed to estimate the air-fuel ratio of the exhaust gas entering a catalyst converter 14. Thus, the air-fuel ratio can be accurately estimated.

20. 发明专利

JPH07127494A FUEL CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH07127494A
公开(公告)日：1995-05-16
申请号：JP29604993
申请日：1993-11-01
申请人： HONDA MOTOR CO LTD
发明人： HIROTA TOSHIAKI , FUJIMOTO YUKITO , KITAMURA TORU , WATANABE MASAMI
IPC分类号： F02D21/08 , F02D41/00 , F02D41/02 , F02D41/04 , F02M25/07
摘要： PURPOSE:To compute a fuel injection amount to a proper value without being influenced by an uncertain time delay for opening of a valve and the dynamic characteristics of a valve by providing a means to perform correction of a set correction factor based on an actual opening amount and a target opening amount and a means to correct a fundamental fuel amount by a correction factor corrected by the aforesaid means. CONSTITUTION:An internal combustion engine 1 is provided with a lift sensor 24 to detect an actual opening amount of an exhaust reflux valve 19. A fuel injection amount is computed by an ECU 5 in synchronism with a TDC (delay cycle) pulse signal but when exhaust reflux is effected, a fundamental correction factor is decided according to a number of revolutions of an engine and an absolute value in an intake pipe. A ratio of an actual opening amount, detected by a lift sensor 24, to the valve opening command value of the exhaust reflux valve 19 is calculated and by mulitiplying the ratio by a value equivalent to a reflux exhaust content in a steady state, a correction factor is calculated. A calculated correction factor is stored and a preceding computed correction factor is corrected to use it for computation of a fundamental fuel amount. This constitution performs proper computation of a fuel injection amount.

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