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1. 发明专利

JPH03130570A TRAPPER AND CAPTURE ABSORBING AGENT AND UNIT FOR FUEL OR THE LIKE 失效
公开(公告)号：JPH03130570A
公开(公告)日：1991-06-04
申请号：JP5472190
申请日：1990-03-06
申请人： TOYOTA CENTRAL RES & DEV , TOYODA GOSEI KK , TOYOTA MOTOR CORP
发明人： KURAUCHI NORIO , OKADA AKANE , HIROSE MIHARU , OTA TAKASHI , MATSUSHITA MITSUMASA , OHASHI TAMIYOSHI , MIZUNO MASAMI , AOKI TOMOHIDE , OKUMOTO TADAOKI , SASAKI KOJI , ITO HIROSHI , NODA FUMIYOSHI , MORIMITSU NOBUTAKA
IPC分类号： F02M25/08
摘要： PURPOSE:To increase ability of capture-absorbing fuel or the like by using an organic high molecule, which has nature of dissolving or swelling in fuel further with good heat resistance, as an absorbing agent for capturing the fuel or the like received in a trapper vessel such as a canister. CONSTITUTION:An automobile canister 1 is formed of a granular absorbing agent 2 and a main unit 10 which is a vessel for housing this absorbing agent 2, and in the main unit 10, the first and second introducing pipes 13, 14 and a purge pipe 16 are fixed to 4 cover unit 11, provided in the upper end of the main unit 10, with a point end part 141 of the second introducing pipe 14 inserted to a position in the vicinity of the center of the main unit 10. Here as the absorbing agent 2, an organic high molecule, having nature of dissolving or swelling in fuel further with good heat resistance, for instance, polycarbonate resin, acrylic resin, ABS resin, acetal resin, etc., is used. This absorbing agent is formed in a shape with a diameter or thickness in about 3mm or less so that absorption is advanced to the center part.

2. 发明专利

JPH04153556A EVAPORATED FUEL PROCESSING DEVICE 失效
公开(公告)号：JPH04153556A
公开(公告)日：1992-05-27
申请号：JP27403390
申请日：1990-10-13
申请人： TOYOTA MOTOR CORP , TOYODA GOSEI KK , TOYOTA CENTRAL RES & DEV
发明人： ITO TAKAAKI , MORIMITSU NOBUTAKA , OHASHI TAMIYOSHI , OTA TAKASHI
IPC分类号： F02M25/08
摘要： PURPOSE:To improve the purging faculty by installing a purge air selector means for selecting the stream of the purge air according to the swelling state of an organic polymer layer and introducing the purge air into an organic polymer layer when the organic polymer layer is swollen. CONSTITUTION:A selector mechanism 18 formed at the inside center position of an organic polymer layer 15 is constituted of a valve 14 and a leaf spring 21, and the valve 14 is shifted in the vertical direction by the leaf spring 21 in deflected state. The outer shape of a filter 17 is changed by the pressure due to the swelling of the organic polymer compound 16 introduced into the lower part of the filter 17, and the volume change due to the swelling is concentrated at the part opposed to the leaf spring 21, and urges the leaf spring 21 upwardly through the filter 17. A large quantity of liquid fuel and high boiling point vapor are absorbed by the organic high polymeric layer 15, and when the organic polymer compound 16 is swollen, the first branched passage 13 is closed by the selector mechanism 18, and the second branched passage 24 is opened. In this state, the purge air introduced from an atmosphere conduit 25 is sucked into an engine, and the fuel caught by a canister 1 is discharged.

3. 发明专利

JPH05195884A EVAPORATED FUEL PROCESSING DEVICE 失效
公开(公告)号：JPH05195884A
公开(公告)日：1993-08-03
申请号：JP26536192
申请日：1992-09-08
申请人： TOYODA GOSEI KK , TOYOTA MOTOR CORP , TOYOTA CENTRAL RES & DEV
发明人： HANABUSA HISAO , OHASHI TAMIYOSHI , MIZUNO MASAMI , AOKI TOMOHIDE , SAWADA YOSHIHIRO , NAKAGAWA MASAYUKI , MORIMITSU NOBUTAKA , HIYOUDOU YOSHIHIKO , ITO TAKAAKI , OTA TAKASHI , SATO NORIO , OKADA AKANE
IPC分类号： B01D53/04 , F02M25/08
摘要： PURPOSE:To prevent transfer of evaporated fuel absorbed in high polymer absorbent to the activated carbon in an activated carbon chamber and prevent evaporated fuel of liquid to be absorbed into activated carbon, in parking or stopping of an automobile. CONSTITUTION:The evaporated fuel processing device is provided with a high polymer chamber 12 filled with high polymer absorbent 3 and an activated carbon chamber 11 filled with activated carbon 4, and a fuel storage device 82, an engine intake passage 85, and the high polymer chamber 12 are respectively communicated to each other with an introducing pipe 15 of evaporated fuel and a purge pipe 16. An atmospheric pipe 17 is connected to the activated carbon chamber 11. A vapor transfer communicating passage to pass evaporated fuel is provided between the high polymer chamber 12 and activated carbon 4. As for the vapor transfer communicating passage, for example, a helical passage 35 helically formed on the outer circumference of the high polymer chamber 12 is provided.

4. 发明专利

JPH04121451A EVAPORATED FUEL TREATING EQUIPMENT 失效
公开(公告)号：JPH04121451A
公开(公告)日：1992-04-22
申请号：JP23944690
申请日：1990-09-10
申请人： TOYOTA MOTOR CORP , TOYODA GOSEI KK , TOYOTA CENTRAL RES & DEV
发明人： ITO TAKAAKI , MORIMITSU NOBUTAKA , OHASHI TAMIYOSHI , MIZUNO MASAMI , OTA TAKASHI
IPC分类号： F02M25/08
摘要： PURPOSE:To ensure a regularly normal purge action by providing a bypass means for communicating a purge conduit with an active charcoal layer when the negative pressure of the purge conduit is a determined value or more, in a one having an active charcoal layer and an organic polymer layer in which the purge conduit is communicated with the organic polymer layer. CONSTITUTION:A canister body 2 is partitioned by porous plates 3-5 into three layers, and an active charcoal 8 is charged in an active charcoal layer 7 in the top part. A space layer 11 and an organic polymer layer 15 are formed in the middle and the bottom part, respectively, and an organic polymer compound 16 is charged in the layer 15. A space chamber 18 is formed in the internal center position of the organic polymer layer 15, so that vapor can be introduced into the space chamber 18 through a porous plate 19 and a filter 20. On the upper wall of the space chamber 18, a valve 14 energized upward by a spring 21 to clog a bypass hole 22 is provided, so that the valve 14 is opened against the spring 21 when the organic polymer compound 16 is in swollen state and an intake negative pressure is applied to a purge port 24 to increase the negative pressure value in the space chamber 18.

5. 发明专利

JPS6467222A APPARATUS FOR PREVENTING FUEL EVAPORATION 失效
公开(公告)号：JPS6467222A
公开(公告)日：1989-03-13
申请号：JP22490087
申请日：1987-09-08
申请人： TOYOTA CENTRAL RES & DEV , TOYODA GOSEI KK
发明人： KURAUCHI NORIO , OKADA AKANE , HIROSE MIHARU , SHIGA SUSUMU , OHASHI TAMIYOSHI
IPC分类号： B01D53/04 , B01J20/26 , F02M25/08
摘要： PURPOSE:To make an apparatus for preventing fuel evaporation compact and to increase an absorbing capacity by arranging an absorbent for the evaporated fuel made of an organic polymer which has a property of being dissolved in or swollen with a fuel and a vessel for containing this absorbent and taking in the evaporated fuel. CONSTITUTION:A canister 1 is composed of an absorbent 2 made of an organic polymer such as 1,2-polybutadiene, which has a property of being dissolved in or swollen with a fuel, and a vessel 10 which contains this absorbent. Gasoline vapor evaporated in a carburetor float chamber 81 and a fuel tank 82 flows into the canister 1 through pipes 13, 14, passes a perforated plate 18, comes into contact with the absorbent 2 and is absorbed. On the other hand, the absorbed gasoline is desorbed by a purge air from a pipe 15 and sent to a purge port 85 through a pipe 16 while the absorbent is regenerated.

6. 发明专利

JPH05215022A VAPORIZED FUEL TREATING EQUIPMENT 失效
公开(公告)号：JPH05215022A
公开(公告)日：1993-08-24
申请号：JP4630992
申请日：1992-01-31
申请人： TOYODA GOSEI KK , TOYOTA MOTOR CORP , TOYOTA CENTRAL RES & DEV , NIPPON DENSO CO , AISAN IND
发明人： HANABUSA HISAO , OHASHI TAMIYOSHI , MIZUNO MASAMI , AOKI TOMOHIDE , MORIMITSU NOBUTAKA , ITO TAKAAKI , OTA TAKASHI , SATO NORIO , OKADA AKANE , KOYAMA NOBUHIKO , KOEDA KENJI , YAMADA HIDEO
IPC分类号： F02M25/08
摘要： PURPOSE:To prevent deterioration of absorbing performance of activated carbon in the case where a liquid content in vaporized fuel is absorbed to the activated carbon, and prevent a polymeric absorbent from being filled excessively during traveling of an automobile. CONSTITUTION:A lower chamber 34 is disposed under an activated carbon chamber 11. A polymer chamber 12 filled with an organic polymeric absorbent 5 is divided into a plurality of division chambers 121-125. An introducing pipe 15 for introducing vaporized fuel and a purge pipe 16 are connected to a first space chamber 31 disposed above the polymer chamber 12. A third space chamber 33 for sucking the atmosphere is provided above the activated carbon chamber 11, and is connected to an atmosphere pipe 17. The lower chamber 34 is communicated with a second space chamber 32 in the lower portion. The shallow filling depth of the polymeric absorbent 5 can prevent the polymeric absorbent 5 from being filled excessively. Consequently, the polymeric absorbent can be freely swelled, thereby enhancing absorbing performance of the polymer chamber.

7. 发明专利

JPH05202818A EVAPORATE FUEL DISPOSAL DEVICE 失效
公开(公告)号：JPH05202818A
公开(公告)日：1993-08-10
申请号：JP4008992
申请日：1992-01-30
申请人： TOYODA GOSEI KK , TOYOTA MOTOR CORP , TOYOTA CENTRAL RES & DEV , NIPPON DENSO CO , AISAN IND
发明人： HANABUSA HISAO , OHASHI TAMIYOSHI , MIZUNO MASAMI , AOKI TOMOHIDE , MORIMITSU NOBUTAKA , ITO TAKAAKI , OTA TAKASHI , SATO NORIO , OKADA AKANE , KOYAMA NOBUHIKO , KOEDA KENJI , YAMADA HIDEO
IPC分类号： F02M25/08
摘要： PURPOSE:To provide an evaporated fuel disposal device which may prevent liquid evaporated fuel from making contact with activated carbon and which may efficiently separate evaporated fuel from a polymer absorbent which absorbs evaporated fuel so as to be swelled. CONSTITUTION:An activated carbon chamber 11 filled therein with activated carbon is provided below a polymer chamber 12 filled with polymer absorbent 5. Further, an introduction pipe 15 and a purge pipe 17 are provided above the polymer chamber 12. An atmospheric air introduction pipe 17 is connected to the upper part of the activated carbon chamber 11. Further, a communication pipe 12 is connected between a second space chamber 32 and a fourth space chamber 35 below the activated carbon chamber 11. Columnar bodies 16 for promoting the separation of evaporated fuel is disposed in the polymer chamber 12.

8. 发明专利

JPH0515722A EVAPORATIVE FUEL TREATMENT DEVICE 失效
公开(公告)号：JPH0515722A
公开(公告)日：1993-01-26
申请号：JP19707191
申请日：1991-07-11
申请人： TOYODA GOSEI KK , TOYOTA CENTRAL RES & DEV , TOYOTA MOTOR CORP
发明人： HANABUSA HISAO , OHASHI TAMIYOSHI , MIZUNO MASAMI , AOKI TOMOHIDE , OTA TAKASHI , SATO NORIO , OKADA AKANE , YASUKAWA MASAO , ITO TAKAAKI
IPC分类号： B01D53/04 , B01D53/14 , F02M25/08
摘要： PURPOSE:To make the size of an evaporative fuel treatment device smaller by making liquid evaporative fuel absorbed into an organic macromolecular absorbent in a macromolecule chamber while making only gas thereof adsorbent activated carbon, thereby eliminating degradation of evaporative fuel capturing performance due to the adsorption of the liquid on activated carbon. CONSTITUTION:An activated carbon chamber 11 filled with acitivated carbon 4 is provided under a macromolecule chamber 12 loaded with organic macromolecular absorbents 5 (e.g. polypropylene). And an admitting pipe 15 for admitting evaporative fuel and a purge pipe 16 are connected to a first space 31 provided above the chamber 12. A third space 33 for admitting the atmosphere is provided above the chamber 11 and an atmosphere pipe 17 is connected to the space 33. Further, a communication pipe 36 is interconnected between a second space 32 and a fourth space 35 under the chamber 11. As a result, liquid of evaporative fuel is absorbed into the absorbents 5 in the chamber 12, while only gas thereof is adsorbed on the activated carbon, whereby degradation of evaporative fuel capturing performance due to the adsorption of liquid on activated carbon can be avoided, thereby reducing the size of an evaporative fuel treatment device.

9. 发明专利

JPH01227861A FUEL EVAPORATION PREVENTING DEVICE 失效
公开(公告)号：JPH01227861A
公开(公告)日：1989-09-12
申请号：JP5332088
申请日：1988-03-07
申请人： TOYOTA CENTRAL RES & DEV , TOYODA GOSEI KK
发明人： KURAUCHI NORIO , OKADA AKANE , HIROSE MIHARU , SHIGA TORU , OHASHI TAMIYOSHI , MIZUNO MASAMI , AOKI TOMOHIDE
IPC分类号： F02M25/08 , B01D53/04 , B01J20/26
摘要： PURPOSE:To improve both the catching ability for evaporated fuel and the fuel evaporation preventing effect by piling absorbers for trapping evaporated fuel, of both organic high polymer material which is solved into evaporated fuel or swells therewith and activated carbon in this order. CONSTITUTION:Gasoline steam evaporated inside a carburetor float chamber 81 or a fuel tank 82 is carried into a canister 1 by a plurality of introduction pipes 13 and 14. Some of the gasoline steam is first exposed to organic high polymer material 20 inside a primary suction chamber 2 to be absorbed. The remaining gasoline steam which has not absorbed is then absorbed by activated carbon 30 inside a secondary suction chamber 3. On the other hand air is fed from a purge air pipe 13 and exhaust gas is discharged from a purging pipe 18 into a purge port 85, whereby refreshing the absorbers 20 and 30. As a result the trapping ability for evaporated fuel may be improved.

10. 发明专利

JPH023530A FUEL INJECTION PORT 失效
公开(公告)号：JPH023530A
公开(公告)日：1990-01-09
申请号：JP14614888
申请日：1988-06-14
申请人： TOYODA GOSEI KK
发明人： OHASHI TAMIYOSHI
IPC分类号： B60K15/05 , B60K15/04
摘要： PURPOSE:To hold a seal member in a non-load state during no need for a seal and to prevent the occurrence of permanent deformation, by a method wherein when a cap is inserted in a fuel suction port, a seal member forced into resilient contact with the outer periphery of a nozzle is pressed through a guide member by means of a pusher. CONSTITUTION:A fuel injection port 21 is formed with a cylindrical body part 23 in which a fuel cap is inserted, and a seal member 31 having a seal part 35 formed into resilient contact with the outer periphery of a fuel injection nozzle 19 disposed on the inner periphery of the body part 23. In this case, when the nozzle 19 is inserted in the body part 23, a guide member 41 is moved through a nozzle support part 47, and a seal part protecting part 43 is separated away from a seal part 35 and brought into close contact with the nozzle 19. Meanwhile, when a fuel cap is inserted in the body part 23, a cap support part 101 of a pusher 100 is brought into contact with the fuel cap, the guide member 41 is pressed by a press part 110, and the seal part protecting part 43 is separated away from the seal part 35.

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