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1. 发明专利

JP2000008828A BLOWBY GAS REDUCING DEVICE 失效
公开(公告)号：JP2000008828A
公开(公告)日：2000-01-11
申请号：JP27939298
申请日：1998-09-14
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： TAKEYAMA MASAKI , YOSHINAGA TORU , IKEDA MASATOSHI , KOHAMA TOKIO , HOSHINO KOKICHI , SHIMURA TAKASHI
IPC分类号： F01M13/00 , F01M13/04
摘要： PROBLEM TO BE SOLVED: To provide a blowby gas reducing device which is excellent in separation of oil content and the recovery efficiency, capable of preventing of the oil content from being adhered to an intake pipe wall, compact in size and simple in constitution. SOLUTION: One end of a blowby gas path 3 to communicate an intake pipe 2 downstream of a throttle valve S of an engine with a crank case 1 is extended into the crank case 1, and a gas-liquid separator 5 is provided in the middle of an extension part 31 and a PCV valve 4 is integratedly provided on the upstream side thereof. The inside of an upper housing 41 of the PCV valve 4 is formed into a swirl passage of the gas-liquid separator 5 to generate the swirl flow in the high-speed blowby gas passing through the PCV valve 4 by a spiral turning plate 46. The oil content in the blowby gas can be efficiently separated by the centrifugal separation effect of the swirl flow. A downstream end part 47 of the swirl passage is projectingly opened in an oil spreader chamber 52 of large diameter, the oil content reaching the downstream end part 47 is scattered in the direction of an internal wall of the oil spreader chamber 52 by the shearing action of the swirl flow, and the recovery efficiency of the oil content can be improved.

2. 发明专利

JPH11264312A VAPOR-LIQUID SEPARATION DEVICE 失效
公开(公告)号：JPH11264312A
公开(公告)日：1999-09-28
申请号：JP21181998
申请日：1998-07-09
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： YOSHINAGA TORU , TAKEYAMA MASAKI , KOHAMA TOKIO , IKEDA MASATOSHI , HOSHINO KOKICHI , SHIBANUMA SHIGERU , SHIMURA TAKASHI
IPC分类号： F01M13/00 , B01D45/12 , B04C5/12 , F01M13/04
摘要： PROBLEM TO BE SOLVED: To improve separation and recovery performance for oil component in blowby gas, and prevent deterioration of the performance even under long time operation. SOLUTION: Blowby gas is flowed from a gas introduciton port 121 to a cyclon chamber 12 through a front chamber 11 of a vapor-liquid separation device. Swirl of the blowby gas is generated in the cyclon chamber, for separating oil component. The gas removed of the oil component is directed to an upper oil spreader chamber 13 while spirally flowing inside a communication pipe 14 on a center portion of the cyclon chamber 12. A sectional area S2 of a gas outlet port 14 on a lower end of the communication pipe 14 is set smaller than a sectional area S1 of the gas introduciton port 121, so that swirl in the communication pipe 14 is intensified, and oil separation efficiency is improved. Liquid oil adhered around the upper end opening of the pipe 14 is sheared and scattered. The communication pipe 14 is projected into the oil spreader chamber 13, for causing contraflow in the oil spreader chamber 13. The scattered oil is stored and recovered on the bottom of the oil spreader chamber 13.

3. 发明专利

JPH11108801A MEASURING APPARATUS FOR FRICTIONAL FORCE OF INTERNAL-COMBUSTION ENGINE 失效
公开(公告)号：JPH11108801A
公开(公告)日：1999-04-23
申请号：JP27561297
申请日：1997-10-08
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： YORITA HIROSHI , YOSHINAGA TORU , NAKAGAWA HIROTADA , KATO SHINJI
IPC分类号： G01L5/00 , F02F1/16 , G01M15/00 , G01M15/04
摘要： PROBLEM TO BE SOLVED: To precisely measure the magnitude of a frictional force acting between the piston and the cylinder liner of an internal-combustion engine by a simple means by preventing an influence due to the pressure of a combustion chamber. SOLUTION: A circumferential groove 33 is formed at the outside of a part near the upper end part of a cylinder liner 3 and in an upper part from the position of the upper dead center of a top ring 82 at a piston 8, and a thin wall part is formed. In addition, strain gages 70a, 70b as the detecting means of the expansion and contraction amount in the direction of the central axis of the Thin wall part are pasted on the bottom face of the groove 33 which is substantially parallel to the central axis line of the cylinder liner 3. Even when the pressure of a combustion chamber 16 acts on the surface of a flange 31 at the cylinder liner 3, a frictional force acts substantially on the bottom face of the groove 33. As a result, as different from a conventional apparatus in which strain gages are pasted both on the surface and the rear surface of the flange 31 as a deformable part, an error due to the influence of the pressure of the combustion chamber is not generated in the detection value of the frictional force.

4. 发明专利

JPH10266907A MEASURING DEVICE OF BLOW BY VOLUME 失效
公开(公告)号：JPH10266907A
公开(公告)日：1998-10-06
申请号：JP7609497
申请日：1997-03-27
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： ITAKURA HIDEAKI , KATO NAOYA , YOSHINAGA TORU , AZEGAMI KATSUO , TAKEDA KEISO , HIYOUDOU YOSHIHIKO
IPC分类号： F02M25/08
摘要： PROBLEM TO BE SOLVED: To provide a measuring device of HC blow by volume without any cost up which is designed to measure HC blow by volume accurately by using density, considering that HC density is not influenced by the humidity. SOLUTION: When a canister 30 adsorbs an HC component vaporizing from vaporized fuel in a fuel tank 20, the HC component blowing through the canister 30 flows into a transfer 40 and flows out together with air as a fluid. Thereupon, a HC densitometer 50 detects the density of the HC component within the fluid above. Then, the volume of the HC component blowing through the canister 30 is measured by calculating with a personal computer 80 based on the density detected as above.

5. 发明专利

JPH07158483A FUEL INJECTION CONTROL METHOD FOR DIESEL ENGINE 失效
公开(公告)号：JPH07158483A
公开(公告)日：1995-06-20
申请号：JP34064593
申请日：1993-12-08
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： TAKIGAWA MASAHIRO , ITO TOSHIHIKO , YOSHINAGA TORU , SUZUKI FUMITADA , HISATOMI SHIGETAKA , YAMADA MITSUMASA
IPC分类号： F02M25/07 , F02B3/06 , F02D21/08 , F02D41/02 , F02D41/10 , F02D41/38
摘要： PURPOSE:To improve accelerating property and prevent generation of smoke by comparing a referential injection amount with the maximum injection amount, and setting the smaller amount thereof as a final injection amount, and increasing the maximum injection amount according to the difference between pre-ratio and post-ration when the referential injection amount exceeds the maximum injection amount. CONSTITUTION:An engine exhaust pipe P2 is connected to an engine intake pipe P1 through an EGR passing point P3 which is provided with an EGR valve 2. The EGR valve 2 is driving- controlled by an electric control device 1 through a negative pressure control valve 3. In the electronic control device 1, an injection nozzle 6 is driving-controlled through a fuel injection pump 5 on the basis of a signal which is detected from an intake air amount sensor 4 and the like. At the time, a referential injection amount which is calculated from accelerating degree and engine rotating speed is compared with a maximum injection amount which is calculated from new air intake air amount and engine rotating speed, the smaller injection amount is served as a final injection amount. When the referential injection amount exceed the maximum injection amount, the maximum injection amount is increased according to the difference between the ratio just when the referential injection amount exceeds the maximum injection amount, and the ratio before the referential injection amount exceeds the maximum injection amount.

6. 发明专利

JPH06254407A METAL CATALYST CARRIER FOR ELECTRIC HEATING 失效
公开(公告)号：JPH06254407A
公开(公告)日：1994-09-13
申请号：JP4495693
申请日：1993-03-05
申请人： TOYOTA MOTOR CORP , NIPPON SOKEN , NIPPON STEEL CORP
发明人： YOSHIZAKI KOJI , YOSHINAGA TORU , WATANABE MASAHIKO
IPC分类号： B01J35/04 , B01D53/86 , B01J35/02 , F01N3/20
摘要： PURPOSE:To ensure that the end surface can be connected in a fresh foil state and air can be allowed to pass through the connected part only by providing a spacer with a narrower width than the axial length of a carrier between paired foils at a position where the paired foils are connected, and connecting the paired foils, in the subject catalyst carrier for purification of exhaust gas from an automotive internal combustion engine. CONSTITUTION:A corrugated foil 11 and a plair foil 12, both being of metal such as aluminum-containing stainless steel are welded using laser beam and the partially connected paired foils are wound around a core electrode. Further, a spacer 19 with an unoxidized surface is rolled into parts corresponding to the inner and outer peripheral arts of a winding form. The spacer 19 is not rolled into a part which constitutes the intermediate part of the winding form. That is, the width of the spacer 19 is smaller than the axial length of the paired foils and is rolled into the upstream lateral end part in exhaust gas flow direction.

7. 发明专利

JPH05220405A ELECTROTHERMAL TYPE METAL CARRIER CATALYST DEVICE 失效
公开(公告)号：JPH05220405A
公开(公告)日：1993-08-31
申请号：JP2789992
申请日：1992-02-14
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： WATANABE MASAHIKO , YOSHINAGA TORU , SHINOHARA YUKIHIRO , FUJISHIRO OSAMU , YOSHIZAKI KOJI , OGURA YOSHITSUGU
IPC分类号： B01D53/94 , B01J35/02 , B01J35/04 , F01N3/20 , F01N3/28
摘要： PURPOSE:To conserve electric energy consumed for a catalyst heater by reducing the wasteful generation of heat in the part low in a gas flow rate on the cross section of a metal carrier. CONSTITUTION:One ends of flat and corrugated metal foils 4, 5 are attached to the periphery of a center electrode 6 and both foils are spirally wound around the electrode 6 so as to alternately superposed one upon another. By this method, a metal carrier 3 formed into a honeycomb shape is provided and, by parallelly adding a flat metal foil so that the value of the electric resistance of the flat and corrugated metal foils 4, 5 becomes small in the peripheral part 12 becoming relatively low in a gas flow rate per a unit cross-sectional area of the metal carrier 3 or increasing thickness in said peripheral part 12, the generation of heat in the peripheral part 12 is reduced.

8. 发明专利

JPH05184938A CURRENT SUPPLY HEATING TYPE CATALYST CONVERTER 失效
公开(公告)号：JPH05184938A
公开(公告)日：1993-07-27
申请号：JP73092
申请日：1992-01-07
申请人： TOYOTA MOTOR CORP , NIPPON SOKEN
发明人： YOSHIZAKI KOJI , HIRAYAMA HIROSHI , YOSHINAGA TORU , WATANABE MASAHIKO , SHINOHARA YUKIHIRO , FUJISHIRO OSAMU
IPC分类号： B01D53/86 , B01J35/02 , B01J35/04 , F01N3/20 , F01N3/24
摘要： PURPOSE:To facilitate the electrical connection of a metal catalyst carrier to the outside of a metal case and to reduce the flow resistance in a catalyst converter. CONSTITUTION:A metal catalyst carrier 3 formed by superposing a corrugated plate and a flat plate each of which has insulating films formed on both surfaces thereof one upon another to wind them is inserted in a metal case 5 to be fixed to the case 5 in a state possible to supply a current, and an electrode is connected to the outer peripheral surface of the case 5. The corrugated plate and the flat plate are bonded in the bonded region 3b of the catalyst carrier 3 in a state possible to supply a current but both plates are not bonded in the non-bonded region 3a of the carrier 3. The length (b) in the axial direction of the non-bonded region 3a is set to 1/2 the length L in the axial direction of the bonded region 3b.

9. 发明专利

JPH05171928A ELECTRIC HEATING TYPE CATALYST DEVICE 失效
公开(公告)号：JPH05171928A
公开(公告)日：1993-07-09
申请号：JP33913891
申请日：1991-12-21
申请人： TOYOTA MOTOR CORP , NIPPON SOKEN
发明人： HIRAYAMA HIROSHI , YOSHINAGA TORU , WATANABE MASAHIKO , SHINOHARA YUKIHIRO , FUJISHIRO OSAMU
IPC分类号： B01J35/02 , B01J35/04 , F01N3/20 , F01N3/24 , F01N3/28 , F01N13/02
摘要： PURPOSE:To manufacture a core of a catalyst converter easily, and assemble it easily. CONSTITUTION:A flat foil and a corrugated foil are overlapped on each other and rolled spirally to form a core 2. In the flat foil and the corrugated foil, a slit extending from an end part of their length along the length is formed, so by rolling the flat foil and the corrugated foil spirally, they are connected to each other at peripheral parts, while at a center part, a pair of core parts 2a, 2b having an interval from each other are formed. An inner end part of the core part 2a is connected to an electrode 3, so the core part 2a is heated electrically. In the meanwhile, a current does not flow to the core part 2b, so the core part 2b is not heated electrically.

10. 发明专利

JPH05171927A CURRENT-SUPPLY HEATING TYPE CATALYST CONVERTER 失效
公开(公告)号：JPH05171927A
公开(公告)日：1993-07-09
申请号：JP33913691
申请日：1991-12-21
申请人： TOYOTA MOTOR CORP , NIPPON SOKEN
发明人： YOSHIZAKI KOJI , HIRAYAMA HIROSHI , YOSHINAGA TORU , WATANABE MASAHIKO , SHINOHARA YUKIHIRO , FUJISHIRO OSAMU
IPC分类号： B01J35/02 , B01J35/04 , F01N3/20 , F01N3/24 , F01N3/28
摘要： PURPOSE:To heat a catalyst carrier uniformly and sufficiently for the whole body thereof, and improve exhaust gas purification effect in a catalyst converter in which the catalyst carrier of metal is supplied with a current to generate heat by increasing an electric resistance at an outer circumferential part of the catalyst carrier. CONSTITUTION:A corrugated plate 1 and a flat plate 2, each comprising 7 metal and having insulation coating on both surfaces, are bound to each other to form a carrier element 3. Plural carrier elements 3 are connected to a positive electrode 4, and them are rolled around the positive electrode 4, so a catalyst carrier 5 of metal is formed. The catalyst carrier 5 is inserted into a metal case 6 and fixed, and a negative electrode 7 is connected to a side surface of the case 6. The width of both end parts of the flat plate 2 are reduced at this time, so the width of the flat plate 2 at a center part and an outer circumferential part of the catalyst carrier 5 is reduced. An electric resistance at the center part and the outer circumferential part of the catalyst carrier 5 is thus increased, so a heat generation quantity at the center part and the outer circumferential part is increased. The catalyst carrier 5 can thus be heated almost uniformly for the whole body of it.

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