专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 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.

2. 发明专利

JPH1015384A PRODUCTION OF DETERIORATED ACTIVE CARBON 失效
公开(公告)号：JPH1015384A
公开(公告)日：1998-01-20
申请号：JP17944596
申请日：1996-07-09
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： ITAKURA HIDEAKI , KATO NAOYA , YOSHINAGA TORU , HIYOUDOU YOSHIHIKO , ITO TAKAAKI
IPC分类号： F02M25/08 , B01D53/72 , B01J20/20
摘要： PROBLEM TO BE SOLVED: To enable the simple production of active carbon of a desired deterioration percentage and the preparation of a canister for testing an engine corresponding to an optional travel distance by purging in a heated environment after active carbon being impregnated with the high boiling point component in a gasoline component. SOLUTION: When a deteriorated canister to be used for the check-out of the suction-exhaust system of an engine on the assumption that the engine has been used for years, after the high boiling point components of gasoline being (saturation-)adsorbed by active carbon occluded in the canister, the deterioration percentage of active carbon is adjusted to a desired value by (air-)purging in a high temperature environment. Undecane (C11 H24 ), nonane (C7 H20 ), and decane (C10 H22 ) are named as the high boiling point component in gasoline. In implementation, for example, undecane is used as an active carbon- impregnated material, when air-purging is done with 100cc of active carbon and at an ambient temperature of 130 deg.C, in the case of 2.5 liter of active carbon, the deterioration percentage of active carbon is 20% after air-purging for about 25hr.

3. 发明专利

JPH10325369A CANISTOR 失效
公开(公告)号：JPH10325369A
公开(公告)日：1998-12-08
申请号：JP13678397
申请日：1997-05-27
申请人： TOYOTA MOTOR CORP , AISAN IND
发明人： ISHIKAWA TAKU , HIYOUDOU YOSHIHIKO , YAMADA HIDEO
IPC分类号： F02M25/08 , F02M37/00
摘要： PROBLEM TO BE SOLVED: To provide a canistor which can efficiently capture and separate a large amount of vapor fuel generated in a fuel tank, and keep a satisfactory on-vehicle property. SOLUTION: A canistor 1 has activated carbon chambers 19, 20 for capturing vapor fuel generated in a fuel tank. The canistor 1 has a vapor passage 3 for introducing the vapor, a breather passage 12 for introducing the vapor remarkably generated at the time of oil supply, a purging passage 14 for purging the captured vapor, and an atmospheric side control valve 30 for communicating the inner space of the canistor 1 with the outside. The breather passage 12 and the purging passage 14 are communicated with an outside diffusion chamber 62 arranged outside the canistor 1. The outside diffusion chamber 62 is further communicated with a diffusion chamber 61 inside the canistor. The vapor largely introduced through the breather passage 12 at the time of oil supply is evenly and steppedly diffused. It is also poosible to improve adsorption efficiency of the vapor to an activated carbon layer 22, through the diffusion chamber 61 and a filter.

4. 发明专利

JPH10230746A FAILURE DIAGNOSIS DEVICE OF FUEL TANK FOR VEHICLE 失效
公开(公告)号：JPH10230746A
公开(公告)日：1998-09-02
申请号：JP3658997
申请日：1997-02-20
申请人： TOYOTA MOTOR CORP
发明人： KIDOKORO TORU , ITO TAKAAKI , HIYOUDOU YOSHIHIKO
IPC分类号： B60K15/077 , F02B77/08 , F02M25/08
摘要： PROBLEM TO BE SOLVED: To diagnose whether a separation film which separates an internal space of a fuel tank into a fuel chamber and an air chamber is in a movable condition or not by providing the separation film and using a physical quantity in the fuel tank in which the separation film moves vertically together with a liquid surface of fuel while it adheres closely to the liquid surface thereof. SOLUTION: A separation film 5 made of a material which is flexible and have the impermeability of fuel vapor such as polyethylene is arranged in an internal space 4 of a fuel tank. This separation film 5 separates the internal space of the fuel tank into an air chamber 6 and a fuel chamber 7 in the upper and lower parts thereof, respectively. Moreover, a fuel remaining amount detector 37 for detecting a remaining amount of fuel in the fuel chamber is provided to detect a displacement amount of the separation film 5 from the vertical movement of a detection rod 38 and convert it to a remaining amount of fuel. The fuel tank provided with the fuel remaining amount detector 37 which detects a displacement amount of the separation film 5 is used to diagnose a failure based on a difference in integrated running distance and a difference in fuel remaining amount output which corresponds to it. That is, a displacement amount of the separation film 5 is used as a physical quantity to diagnose a movable condition of the separation film 5.

5. 发明专利

JPH07208277A EVAPORATION FUEL PROCESSING DEVICE 失效
公开(公告)号：JPH07208277A
公开(公告)日：1995-08-08
申请号：JP768094
申请日：1994-01-27
申请人： TOYOTA MOTOR CORP
发明人： HIYOUDOU YOSHIHIKO , DEGUCHI RYUICHI
IPC分类号： F02M25/08
摘要： PURPOSE:To secure adsorbing performance of an evaporation fuel adsorbing layer by allowing air to flow to the whole evaporation fuel adsorbing layer. CONSTITUTION:An activated carbon layer 3 is arranged in a housing 2. An air chamber 4 is formed between an activated carbon layer bottom end surface 3a and a housing bottom end surface 2a, and an evaporation fuel chamber 2 is formed between an activated carbon layer top end surface 3b and a housing top end surface 2b. The air chamber 4 is communicated with the atmosphere through an air inflow port 6. The evaporation fuel chamber 5 is communicated with an intake passage of an engine through an evaporation fuel outflow port 10 on one side and with an evaporation fuel source through an evaporation fuel inflow port 11 on the other side. When air is allowed to flow into the air chamber 4 from the air outflow port 6 in which a throttle is formed, the air collides against the housing bottom end surface 2a, and then it is approximately uniformly spread into the whole air chamber 4. Since air is allowed to flow in the activated carbon layer 3 through approximately the whole surface of the activated carbon layer bottom end surface 3a, evaporation fuel adsorbed in the activated carbon layer 3 can be well separated.

6. 发明专利

JPH06213082A FUEL TANK INTERNAL PRESSURE CONTROLLER 失效
公开(公告)号：JPH06213082A
公开(公告)日：1994-08-02
申请号：JP794393
申请日：1993-01-20
申请人： TOYOTA MOTOR CORP
发明人： KIDOKORO TORU , ITO TAKAAKI , HIYOUDOU YOSHIHIKO , OSANAI AKINORI
IPC分类号： F02M25/08 , B60K15/077 , F02M33/00 , F02M37/00
摘要： PURPOSE:To set up a pressure differential in fuel tank internal pressure at the time of engine driving, immediately after the stop and in time of successive, stoppage, in a fuel tank internal pressure control means which controls the fuel tank internal pressure properly according to those of engine driving, immediately after the stop and successive stoppage. CONSTITUTION:At the time of engine driving, negative pressure to be produced in an intake passage 44 is fed to a third space 26 by way of a vacuum transmitting valve (VTV) 41, while a vacuum switching valve (VSV) 47 is opened and the negative pressure passed by way of a canister 37 is fed to a second space 25 through another VTV 38. After engine stoppage, a large quantity of atmospheric air is fed out of a large diametral orifice 38b, this atmospheric air is gradually fed to the third space 26 from a small diametral orifice 41b and the negative pressure is kep up as long as the specified time, whereas the second space 25 turns to atmospheric pressure at once. Therefore only energizing force of a first spring 30 immediately after stoppage is added to a valve element 32.

7. 发明专利

JPH0633838A CONTROLLER FOR INTERNAL PRESSURE OF FUEL TANK 失效
公开(公告)号：JPH0633838A
公开(公告)日：1994-02-08
申请号：JP18839492
申请日：1992-07-15
申请人： TOYOTA MOTOR CORP
发明人： KIDOKORO TORU , ITO TAKAAKI , HIYOUDOU YOSHIHIKO , OSANAI AKINORI
IPC分类号： F02M25/08 , F02M37/00
摘要： PURPOSE:To prevent the discharge of the vapor from a canister atmospheric hole in selection by selecting the fuel tank internal pressure from a high pressure to a low pressure after the start of purge, as for fuel tank internal pressure controller for controlling the continuity the communication passage between a fuel tank and a canister. CONSTITUTION:A tank inter pressure control value is installed in a communication passage between a fuel tank and a canister. The engine stop is judged (Step 111) if an ignition IG is in a turned OFF state, and a negative pressure selector value (negative pressure VSV) for setting the set pressure of the tank inner pressure control valve to a high pressure is turned OFF (Step 114). If IG is in a turned ON state, it is judged if the purge starting condition is established or not (Step 112). If the condition is established, it is judged that purge is started, and the negative pressure VSV is turned ON (Step 113). Tne internal pressure released vapor is directly discharged into the engine through the canister.

8. 发明专利

JPH05223022A EVAPORATED FUEL DISPOSAL DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH05223022A
公开(公告)日：1993-08-31
申请号：JP2395092
申请日：1992-02-10
申请人： TOYOTA MOTOR CORP
发明人： OSANAI AKINORI , ITO TAKAAKI , HIYOUDOU YOSHIHIKO , KIDOKORO TORU
IPC分类号： F02M25/08
摘要： PURPOSE:To provide an evaporated fuel disposal device for internal combustion engine, which can stabilize the concentration of evaporated fuel to be purged so as to prevent the air-fuel ration from being disturbed. CONSTITUTION:Evaporated fuel accumulated in a canister M1 is purged, for disposal, into an intake passage of an internal combustion engine M3, downstream of a throttle valve while the purge volume is controlled by a purge control valve M2. An operating condition detecting means M4 detects an operating condition of the engine M1. A purge flow rate control means 5 controls the purge valve control valve in accordance with a detected operating condition so that the purge flow rate is maintained to be constant irrespective of variation in the engine operating condition.

9. 发明专利

JPH05187338A FUEL TANK PRESSURE CONTROLLER 失效
公开(公告)号：JPH05187338A
公开(公告)日：1993-07-27
申请号：JP322592
申请日：1992-01-10
申请人： TOYOTA MOTOR CORP
发明人： KIDOKORO TORU , ITO TAKAAKI , HIYOUDOU YOSHIHIKO , OSANAI AKINORI
IPC分类号： F02M37/00
摘要： PURPOSE:To prevent excessive rise of pressure in a tank and excessive charging of fuel by setting delay time to the optimum value in accordance with the condition of use and controlling pressure in the tank to the optimum value. CONSTITUTION:A one-way valve M1 provided in a passage which passes a fuel tank M2 and a canister M3 is opened during the operation of an engine M4 and closed after the engine M4 is stopped. After it is closed, it is opened at the predetermined pressure and discharges vaporised fuel which is generated in the fuel tank into the canister. A delay means M5 delays closing of one-way valve M1 after the engine is stopped. A pressure detection means M6 detects pressure in a delay tank. A delay time variable means M7 changes delay time of delay means based on pressure in the tank which is detected by the pressure detection means.

10. 发明专利

JPH05187331A CANISTER 失效
公开(公告)号：JPH05187331A
公开(公告)日：1993-07-27
申请号：JP246692
申请日：1992-01-09
申请人： TOYOTA MOTOR CORP
发明人： KIDOKORO TORU , ITO TAKAAKI , HIYOUDOU YOSHIHIKO , OSANAI AKINORI
IPC分类号： F02M25/08
摘要： PURPOSE:To prevent vapor accumulated in the down part space of a main chamber having a vapor lead-in port and a purge port from easily blowing through to a subchamber having an air lead-in port. CONSTITUTION:A main chamber 3 and a subchamber 4 equipped with absorbent layers 7, 8 for the sake of adsorbing vapor are provided in the casing 2 of a canister 1. A vapor lead-in port 19 for leading vapor into the main chamber 3 from a fuel tank 20 is provided in the main chamber 3. In the same way, a purge port 22 leading out separation fuel separated from respective adsorbent layers 7, 8 to an intake passage 23 is provided on the main chamber 3. Still more, a communication passage 30 for mutually communicating respective spaces 28, 29 on the lower sides of the main chamber 3 and the subchamber 4 is provided, a projection pipe passage 31 projecting in the space part 28 side from that communication passage 30 is provided, and the opening end 31a thereof is faced upward to be arranged in the upper position inside the third space part 28. Therefore, the vapor accumulated in the third space part 28 never flows out to the communication on passage 30 through the projection pipe passage 31 so far as no vapor rises to the upward position.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式