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21. 发明专利

JPH04234553A AIR-FUEL RATIO CONTROL OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH04234553A
公开(公告)日：1992-08-24
申请号：JP41732090
申请日：1990-12-28
申请人： HONDA MOTOR CO LTD
发明人： HOSODA FUMIO , KIYOMIYA TAKASHI , FUJIMOTO YUKITO , HIDANO KOICHI
IPC分类号： F02D41/04 , F02D41/14 , F02M25/08
摘要： PURPOSE:To control air-fuel ratio accurately by calculating the weight of fuel vapour to be evaporated from a fuel tank and supplied to an intake system. CONSTITUTION:Fuel vapour weight GVQ supplied to an intake valve through a canister is found from both air volume Q4 supplied to the canister and air- vapour added volume Q1 supplied from the canister to an intake system of an engine, and by using the ratio of the fuel-vapour weight and fuel injection volume supplied to the engine, air-fuel ratio of air-fuel mixture supplied to the engine is corrected.

22. 发明专利

JPH0921367A OIL FEEDING UNIT AND EVAPORATIVE FUEL DISCHARGE SUPPRESSING DEVICE 失效
公开(公告)号：JPH0921367A
公开(公告)日：1997-01-21
申请号：JP17005095
申请日：1995-07-05
申请人： HONDA MOTOR CO LTD
发明人： WAKASHIRO TERUO , HARA TAKESHI , YAMAZAKI KAZUMI , HIDANO KOICHI
IPC分类号： F02M25/08 , F02M33/00 , F02M37/00
摘要： PROBLEM TO BE SOLVED: To prevent the discharge of a fuel vapor generated in a fuel tank to the outer side, by operating a detecting switch by the lid of a fuel cap, prior to releasing the airtight seal of the oil feeding port of a filler pipe. SOLUTION: An oil feeding unit furnishes a filler pipe 30 having an oil feeding port formed into a female screw form, a male screw member 45 formed into a male form screwable to the oil feeding port, a guide ring 46 composing the first and the second guide grooves 46a and 46b which are fixed at the inner space of the male screw 45 and extending in the axial direction and in the peripheral direction, a stem 43 fitted sliceable to the guide ring 46, and a lid 42 fixed to the stem 43. The bottom surface of the lid 42 and the operating piece 51 of a lid detecting switch 50 are interlocked. The stem 43 has guide pieces fitting to the first and the second guide groves 46a and 46b, and the operating piece 51 is operated before a fuel cap is removed from the filler pipe 30.

23. 发明专利

JPH08338326A VAPORIZED FUEL PROCESSING DEVICE FOR VEHICLE 失效
公开(公告)号：JPH08338326A
公开(公告)日：1996-12-24
申请号：JP16919695
申请日：1995-06-12
申请人： HONDA MOTOR CO LTD
发明人： HARA TAKESHI , WAKASHIRO TERUO , YAMAZAKI KAZUMI , HIDANO KOICHI , KAWAKAMI TOMOYUKI
IPC分类号： F02M25/08
摘要： PURPOSE: To reduce the flow velocity of air containing vaporized fuel, which is led to a canister when fuel is supplied, and enhance the absorption efficiency of the canister. CONSTITUTION: The U shape flow type vaporized fuel processing device for a vehicle is provided with a container 2 where two chambers composed of a chamber 5, and of a chamber 6, which house absorbent respectively, are partitioned by a partitioning board 7. A first projected part 4 is provided for the inner surface of the apex part 3 of the chamber 5, and a filter 8 is brought into contact with the first projected part 4 in order to specify a space layer 18 by the cooperation with the first projected part 4. A second projected part 4 is provided for the inner surface of the side part 35 of the chamber 5, and a filter 38 abuts against the second projected part 4 in order to specify a space layer 19 communicated with the space layer 18 by the cooperation with the second projected part 4. A high speed charge port 21 is provided for the apex part 3 corresponding to the chamber 5 in order to connect the first space layer 18 to the apex part of a fuel tank. And a purge port 22 is provided for the apex part 3 corresponding to the chamber 5 in order to connect the space layer 18 to the suction system of an engine.

24. 发明专利

JPH08270515A OPENING AND CLOSING VALVE FOR EVAPORATIVE FUEL PROCESSING DEVICE 失效
公开(公告)号：JPH08270515A
公开(公告)日：1996-10-15
申请号：JP9625195
申请日：1995-03-29
申请人： HONDA MOTOR CO LTD
发明人： YAMAZAKI KAZUMI , SUZUKI TAKESHI , HIDANO KOICHI , NAKAJIMA TATEAKI
IPC分类号： F02M25/08
摘要： PURPOSE: To provide the opening and closing valve which can be securely operated even in the case where the fuel flows into a pressure chamber communicated with a fuel supplying pipe. CONSTITUTION: The inside of a casing 20 of an opening and closing valve 5 is divided into a first pressure chamber 22 which is communicated with a fuel tank 1, and a second pressure chamber 23 which is communicated with a part near the fuel supplying port of the fuel supplying pipe 2, by a diaphragm 21. A valve body 24 for opening and closing a port 28 and a retainer 25 are fixed to the diaphragm 21 at a central part thereof. The retainer 25 having the cylindrical shape is provided with plural through holes 25a at positions a little over the bottom part which contacts with the diaphragm 21. The side of the casing 20 is provided with a fuel draining passage 27 at a small diameter, which is communicated with the first pressure chamber 22 and the second pressure chamber 23. An opening part 27a of the passage 27 opened to the second pressure chamber 23 is provided at a position a little over the diaphragm 21.

25. 发明专利

JPH07180627A EVAPORATED FUEL PROCESSING DEVICE 失效
公开(公告)号：JPH07180627A
公开(公告)日：1995-07-18
申请号：JP32439593
申请日：1993-12-22
申请人： HONDA MOTOR CO LTD
发明人： YAMAZAKI KAZUMI , NAKAJIMA TATEAKI , HIDANO KOICHI , WAKASHIRO TERUO , HARA TAKESHI , KAWAKAMI TOMOYUKI
IPC分类号： B60K15/077 , B60K15/04 , F02M25/08 , F02M33/00
摘要： PURPOSE:To prevent evaporated fuel from being discharged into the atmosphere from a feed oil pipe to the utmost by connecting the other end of an evaporated fuel passage, connected to an upper space in a fuel tank, to the feed oil pipe at a part corresponding to the negative pressure lead-in hole of a nozzle at the oil feeding time, and leading evaporated fuel to the negative pressure lead-in hole of an oil gun from the evaporated fuel passage. CONSTITUTION:One end part of an evaporated fuel passage 23 is connected to the upper part of a tank body 21, and a canister C is connected to the other end of the fuel passage 23. The connecting part of the fuel passage 23 into the tank body 21 is provided with a float valve 26 including a float 25. In this case, a switching valve V opened at the oiling time is interposed at the intermediate part of the fuel passage 23. This switching valve V is kept closed in the closed state of an oil filling port 22a since the differential pressure of a valve body 54 displacing a diaphragm 49 onto the side of opening a valve hole 53 is not generated between a valve chamber 50 and a spring chamber 51. The switching valve V is opened when the diaphragm 49 is displaced against a spring 52 according to the internal pressure of the fuel tank T, that is, the pressure increase in the valve chamber 50 the oiling time by an oiling gun G.

26. 发明专利

JPH07103084A FUEL VAPOR EMISSION INHIBITING DEVICE 失效
公开(公告)号：JPH07103084A
公开(公告)日：1995-04-18
申请号：JP25419993
申请日：1993-10-12
申请人： HONDA MOTOR CO LTD
发明人： HIDANO KOICHI , WAKASHIRO TERUO , HARA TAKESHI , YAMAZAKI KAZUMI , KAWAKAMI TOMOYUKI
IPC分类号： F02M25/08
摘要： PURPOSE:To surely check the emission of evaporated fuel into the atmosphere when inside pressure in a fuel tank rises by making a forced charge means forcedly feed fuel vapor in a fuel tank into a canister through a fuel vapor path in supplying the fuel. CONSTITUTION:When a fuel supply gun 10 is inserted into a fuel supply port 2 through a seal 2a, a fuel supply switch 11 is turned on to close the normally open contact 12a of a relay 12 for actuating a pump 9. The fuel vapor occurring in a fuel tank 1 is forcedly fed into a canister 5 through a fuel vapor path 8 and absorbed by an activated carbon 5a for checking its emission. When pressure inside the fuel tank 1 lowers, a switch 14 is turned off by a inner pressure sensor 13, and the normally open contact 12a of the relay 12 therefore opens to stop a pump 9. After that, the fuel level of the fuel tank 1 rises to actuate the auto-stop function of the fuel supply gun 10, and the fuel supply ends. Thus the emission of the fuel vapor is surely checked.

27. 发明专利

JPH06280694A CANISTER DEVICE 失效
公开(公告)号：JPH06280694A
公开(公告)日：1994-10-04
申请号：JP8951893
申请日：1993-03-25
申请人： HONDA MOTOR CO LTD
发明人： YAMAZAKI KAZUMI , HIDANO KOICHI , WAKASHIRO TERUO , KAWAKAMI TOMOYUKI
IPC分类号： F02M25/08
摘要： PURPOSE:To promote the desorption of evaporated fuel efficiently with a simple mechanism by controlling electrification of a pair of electrodes disposed at both sides of activated carbon in a canister. CONSTITUTION:A pair of electrode plates 40, 41 opposed to each other are embedded in activated carbon 36 in a canister C along the inner peripheral surface of a receptacle 30. An electrifying means 42 for applying voltage across the electrode plates 40, 41 is operated under the control of an ECU 15. The activated carbon sandwiched between the electrode plates 40, 41 has large electric resistance, but is conductive in electric current to generate heat by itself. When the temperature of the activated carbon 36 itself rises to some degree, adsorbed evaporated fuel gets liable to be desorbed. The control of the electrifying means 42 detects the running condition of an engine according to signals of an absolute pressure sensor 10 in an exhaust pipe, an engine rotational frequency sensor 11, etc. The electrifying means 42 is turned on to apply electricity after warming-up is completed after start and O2 feed-back control is started, and the desorption of the evaporated fuel is urged nearly at the same time as the purge to improve the purge efficiency.

28. 发明专利

JP2002349366A VAPORIZED FUEL CONTROLLER FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JP2002349366A
公开(公告)日：2002-12-04
申请号：JP2001151979
申请日：2001-05-22
申请人： HONDA MOTOR CO LTD
发明人： TAGAMI TAKESHI , IKEUCHI KOUTA , HIDANO KOICHI
IPC分类号： F02D41/00 , F02D41/02 , F02D41/04 , F02D41/14 , F02D45/00 , F02M25/08
摘要： PROBLEM TO BE SOLVED: To maintain the air/fuel ratio feedback control optimally by previously controlling the vaporized fuel quantity being purged without exceeding the upper limit corresponding to the operation condition. SOLUTION: There is provided a vaporized fuel controller for an internal combustion engine provided with an operation state detecting means for detecting the operation state of the internal combustion engine, an upper limit calculating means for calculating the upper limit of the vaporized fuel corresponding to the detected operation state, and a vaporized fuel quantity calculating means for calculating the vaporized fuel quantity purged into the intake system so as not to exceed the upper limit. A purging means for purging the vaporized fuel generated in the fuel tank into an intake system of the internal combustion engine is operated so as to purge the vaporized fuel quantity of the quantity calculated so as not to exceed the upper limit.

29. 发明专利

JPH08261076A ATMOSPHERIC AIR RELEASE VALVE OF CANISTER 失效
公开(公告)号：JPH08261076A
公开(公告)日：1996-10-08
申请号：JP9146895
申请日：1995-03-24
申请人： HONDA MOTOR CO LTD
发明人： HARA TAKESHI , HIDANO KOICHI , YAMAZAKI KAZUMI , WAKASHIRO TERUO , KAWAKAMI TOMOYUKI
IPC分类号： F02M25/08
摘要： PURPOSE: To provide an atmospheric air release valve which increases degree of freedom of layout of an evaporating fuel treatment device and improves assembly property. CONSTITUTION: A canister 1 which adsorbs evaporating fuel which is generated in a fuel tank of an internal combustion engine and supplies the adsorbed fuel to an intake system of the engine is provided with an atmospheric air release port 2 which introduces atmospheric air. A casing 11 of the atmospheric air release valve 3 is fitted in the atmospheric air release port 2. The casing 11 is divided into a negative pressure chamber 13 which introduces negative pressure of the intake system of the engine by a diaphragm 12 and an atmospheric air introduction chamber 14 having an opening end 18 which is communicated with atmospheric air and is opened in the inside of the canister 1. A valve element 16 which opens and closes the opening end 18 is fixed on the diaphragm 12 to open and close the opening end 18 in the interlocking relationship with the movement of the diaphragm 12.

30. 发明专利

JPH08240159A EVAPORATED FUEL PROCESSING DEVICE 失效
公开(公告)号：JPH08240159A
公开(公告)日：1996-09-17
申请号：JP4329895
申请日：1995-03-02
申请人： HONDA MOTOR CO LTD
发明人： YAMAZAKI KAZUMI , HARA TAKESHI , HIDANO KOICHI , WAKASHIRO TERUO
IPC分类号： F02M25/08 , F02M37/00
摘要： PURPOSE: To adsorb the evaporated fuel effectively by an adsorbent layer of a canister irrespective of the mode of the operation, i.e., whether the fuel is being supplied or not. CONSTITUTION: The first and the second opening/closing valve 9, 16 are closed when the fuel is out of supply. and a minor quantity of evaporated fuel introduced to the first chamber 18 from the first evaporated fuel conduit 4 flows through a gas flow-path 20 while passing a plurality of adsorbent layers 21, 22, being directed from the first chamber 18 to the second chamber 19. When the fuel is being supplied. the first and second valves 9, 16 are opened, and a major quantity of evaporated fuel from the second evaporated fuel conduit 6 is distributedly introduced to the first and second chambers 18, 19 by opening the first and second valves 9, 16. The evaporated fuel is allowed top flow while passing the adsorbent layers 21, 22. being directed toward the middle chamber 23 in the center of the gas flow-path 20.

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