KR20050096587A - Canister for a vehicle - Google Patents

Canister for a vehicle Download PDF

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Publication number
KR20050096587A
KR20050096587A KR1020040022017A KR20040022017A KR20050096587A KR 20050096587 A KR20050096587 A KR 20050096587A KR 1020040022017 A KR1020040022017 A KR 1020040022017A KR 20040022017 A KR20040022017 A KR 20040022017A KR 20050096587 A KR20050096587 A KR 20050096587A
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KR
South Korea
Prior art keywords
activated carbon
canister
space
vehicle
vent hole
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KR1020040022017A
Other languages
Korean (ko)
Inventor
박천규
Original Assignee
기아자동차주식회사
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Application filed by 기아자동차주식회사 filed Critical 기아자동차주식회사
Priority to KR1020040022017A priority Critical patent/KR20050096587A/en
Priority to DE102004054114A priority patent/DE102004054114A1/en
Priority to CNB2004100909862A priority patent/CN100342127C/en
Priority to JP2004354766A priority patent/JP2005195007A/en
Priority to US11/022,229 priority patent/US7294179B2/en
Publication of KR20050096587A publication Critical patent/KR20050096587A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/035—Fuel tanks characterised by venting means
    • B60K15/03504—Fuel tanks characterised by venting means adapted to avoid loss of fuel or fuel vapour, e.g. with vapour recovery systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
    • F02M25/0854—Details of the absorption canister
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (AREA)
  • Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)

Abstract

본 발명은 흡착성능과 탈착성능이 서로 다른 두 종류의 활성탄을 캐니스터 내에 적절히 배치하고, 상기 두 종류의 활성탄 사이에 구비된 공기층 및 디퓨저에 의해 기체의 유동 분포를 고르게 조절함으로써, 보조 캐니스터와 같은 별도의 보조적인 구성부품을 설치하지 않고도, 캐니스터에서 대기중으로 누출되는 연료증발가스의 양을 극도로 저감시킬 수 있다.According to the present invention, two kinds of activated carbons having different adsorption and desorption performances are properly disposed in the canister, and the flow distribution of the gas is uniformly controlled by an air layer and a diffuser provided between the two kinds of activated carbons to separate the activated carbon. It is possible to dramatically reduce the amount of fuel evaporation gas leaking from the canister into the atmosphere without the need for installing auxiliary components.

Description

차량의 캐니스터{CANISTER FOR A VEHICLE}Canister of Vehicle {CANISTER FOR A VEHICLE}

본 발명은 차량의 캐니스터에 관한 것으로서, 보다 상세하게는 캐니스터에서 대기중으로 누출되는 연료증발가스를 저감시키는 기술에 관한 것이다.The present invention relates to a canister of a vehicle, and more particularly, to a technique for reducing fuel evaporation gas leaking from the canister into the atmosphere.

캐니스터는 연료탱크내에서 증발되는 연료증발가스를 포집하였다가 엔진의 흡기계를 통해 연소실에서 연소시킬 수 있도록 함으로써, 연료증발가스가 대기중으로 누출되는 것을 억제하도록 하는 기능을 수행한다.The canister captures the fuel evaporation gas evaporated in the fuel tank and makes it possible to burn it in the combustion chamber through the intake of the engine, thereby suppressing the leakage of the fuel evaporation gas into the atmosphere.

상기와 같은 캐니스터에는 연료탱크의 압력을 조절하고 내부에 포집된 연료증발가스를 엔진의 흡기계로 퍼지하기 위하여 대기측으로부터 공기를 흡입할 수 있도록 대기측과 연통된 벤트홀이 구비되어 있다.The canister is provided with a vent hole communicating with the atmosphere side to adjust the pressure of the fuel tank and to purge air from the atmosphere side to purge the fuel evaporated gas collected therein into the intake of the engine.

따라서, 상기 벤트홀을 통하여 캐니스터로부터 증발가스가 외부로 누출되는 것을 효과적으로 억제할 수 있는 기술이 필요하다.Therefore, there is a need for a technique capable of effectively suppressing the leakage of boil-off gas from the canister to the outside through the vent hole.

본 발명은 캐니스터의 벤트홀을 통하여 대기중으로 누출되는 연료증발가스의 양을 극히 저감시킬 수 있는 컴팩트한 구조의 캐니스터를 제공함에 그 목적이 있다. An object of the present invention is to provide a canister having a compact structure that can dramatically reduce the amount of fuel evaporation gas leaking into the atmosphere through the vent hole of the canister.

상기한 바와 같은 목적을 달성하기 위한 본 발명 차량의 캐니스터는 캐니스터의 내부공간을 증발가스유입구와 퍼지출구가 연통된 제1공간과, 벤트홀이 연통된 제2공간으로 구획하는 격벽과;A canister of a vehicle according to the present invention for achieving the above object includes: a partition wall partitioning an inner space of the canister into a first space in which an evaporation gas inlet and a purge outlet communicate with each other, and a second space in which a vent hole communicates;

상기 제2공간의 벤트홀 쪽에 충전된 제1활성탄과;First activated carbon filled in the vent hole of the second space;

상기 제2공간의 제1활성탄이 충전된 나머지 공간 및 상기 제1공간에 충전되고, 상기 제1활성탄보다 흡착성능은 우수하고 탈착성능은 열등한 제2활성탄;A second activated carbon filled in the remaining space filled with the first activated carbon of the second space and the first space and having better adsorption performance and inferior desorbability than the first activated carbon;

을 포함하여 구성된 것을 특징으로 한다.Characterized in that configured to include.

또한, 상기 제2공간의 제1활성탄과 제2활성탄 사이에는 공기층이 구비된 것을 특징으로 한다.In addition, an air layer is provided between the first activated carbon and the second activated carbon in the second space.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

도 1은 본 발명에 따른 캐니스터의 내부구조를 도시한 것으로서, 캐니스터(1)에는 연료탱크로부터 연료증발가스가 유입되도록 구비된 증발가스유입구(3)가 구비되고, 포집되어 있는 연료증발가스를 퍼지시키기 위한 퍼지출구(5)가 구비되어 있으며, 대기중과 연통될 수 있도록 구비된 벤트홀(7)이 구비되어 있다.1 is a view illustrating an internal structure of a canister according to the present invention. The canister 1 includes an evaporation gas inlet 3 provided to allow fuel evaporation gas to flow from a fuel tank, and purges the collected fuel evaporation gas. The purge outlet 5 is provided, and the vent hole 7 is provided to communicate with the atmosphere.

상기 캐니스터(1)의 내부공간은 격벽(9)에 의해 증발가스유입구(3)와 퍼지출구(5)가 연통된 제1공간(11)과, 벤트홀(7)이 연통된 제2공간(13)으로 구획되어 있다.The inner space of the canister 1 includes a first space 11 in which the evaporation gas inlet 3 and the purge outlet 5 communicate with each other by the partition 9, and a second space in which the vent hole 7 communicates with each other ( It is divided into 13).

상기 제2공간(13)의 벤트홀(7) 쪽에는 제1활성탄(15)이 충전되어 있고, 상기 제2공간(13)의 제1활성탄(15)이 충전된 나머지 공간 및 상기 제1공간(11)에는 제2활성탄(17)이 충전되어 있는데, 상기 제2활성탄(17)은 상기 제1활성탄(15)보다 흡착성능은 우수하고 탈착성능은 열등한 특성을 갖는 것이다.The first activated carbon 15 is filled in the vent hole 7 side of the second space 13, and the remaining space filled with the first activated carbon 15 of the second space 13 and the first space. (11) is filled with the second activated carbon 17, the second activated carbon 17 is superior to the first activated carbon 15, the adsorption performance and the desorption performance is inferior characteristics.

즉, 본 실시예에서는 상기 제1활성탄은 퍼지시에 대기중의 공기가 흡입될 때, 상기 제2활성탄보다 재생 성능(탈착성능)이 우수해서, 동일한 공기 흡입량에 대하여 증발가스 잔류량이 상대적으로 적게 형성되는 활성탄인 것이다.That is, in this embodiment, the first activated carbon has better regeneration performance (desorption performance) than the second activated carbon when air in the air is sucked in during purge, so that the residual amount of boil-off gas is relatively small for the same amount of air intake. It is activated carbon formed.

상기 제2공간(13)의 제1활성탄(15)과 제2활성탄(17) 사이에는 공기층(19)을 구비하였는데, 상기 공기층(19)은 상기 벤트홀(7)로부터 상기 제2공간(13)의 전체 길이의 1/4~1/2의 범위 내에 설치되는 것이 바람직하다.An air layer 19 is provided between the first activated carbon 15 and the second activated carbon 17 of the second space 13, and the air layer 19 is separated from the vent hole 7 by the second space 13. It is preferable that it is provided in the range of 1 / 4-1 / 2 of the full length of).

또한, 상기 공기층(19)에는 기체의 유동이 상기 제1활성탄(15) 및 제2활성탄(17)으로 골고루 분산되어 이루어지도록 하는 디퓨저(21)가 도 2에 설명된 바와 같이 설치되어 있다.In addition, a diffuser 21 is installed in the air layer 19 to distribute the gas evenly to the first activated carbon 15 and the second activated carbon 17 as described in FIG. 2.

상기한 바와 같이 구성된 본 발명의 작용을 살펴보면 다음과 같다.Looking at the operation of the present invention configured as described above are as follows.

연료탱크에 연료를 주입하는 경우에는 상기 증발가스유입구(3)를 통해 연료증발가스가 캐니스터(1)의 내부로 유입되고, 상기 연료증발가스는 상기 제2활성탄(17)과 제1활성탄(15)을 차례로 통과하면서 흡착되어 공기성분만 상기 벤트홀(7)을 통해 대기 중으로 방출되게 된다.When fuel is injected into a fuel tank, fuel evaporation gas is introduced into the canister 1 through the boil-off gas inlet 3, and the fuel evaporation gas is supplied to the second activated carbon 17 and the first activated carbon 15. Adsorbed while passing through sequentially), only the air component is released to the atmosphere through the vent hole (7).

물론, 연료주입시가 아닌 통상의 정차시에 연료탱크에서 발생하는 연료증발가스는 상기와 같이 제2활성탄(17)과 제1활성탄(15)에 의해 포집되어 대기중으로의 누출이 억제된다.Of course, the fuel evaporation gas generated in the fuel tank at the normal stop, not at the time of fuel injection, is collected by the second activated carbon 17 and the first activated carbon 15 as described above, and leakage to the atmosphere is suppressed.

이때, 상기 공기층(19)과 상기 공기층(19)내에 설치된 디퓨저(21)는 상기 제2활성탄(17)측으로부터 제1활성탄(15)쪽으로 흐르는 기체가 상기 제1활성탄(15)에 고르게 분포되어 유동될 수 있도록 하여, 상기 제1활성탄(15)의 효율을 극대화하는 역할을 한다.In this case, in the air layer 19 and the diffuser 21 installed in the air layer 19, gas flowing from the second activated carbon 17 side toward the first activated carbon 15 is evenly distributed on the first activated carbon 15. By allowing it to flow, it serves to maximize the efficiency of the first activated carbon (15).

엔진의 작동상태가 캐니스터(1)를 퍼지하기에 적합한 조건이 되면, 퍼지컨트롤솔레노이드밸브를 작동시켜 상기 퍼지출구(5)를 통해 캐니스터(1) 내부에 포집되었던 연료증발가스를 퍼지시키는데, 이때에는 상기 벤트홀(7)을 통해 공기가 캐니스터(1)의 내부로 유입된다.When the operating state of the engine is a suitable condition for purging the canister (1), the purge control solenoid valve is operated to purge the fuel evaporation gas trapped inside the canister (1) through the purge outlet (5). Air is introduced into the canister 1 through the vent hole 7.

상기와 같이 유입되는 공기는 상기 제1활성탄(15) 및 제2활성탄(17)이 포집하고 있던 연료증발가스를 탈착시켜 엔진 흡기계로 흘러감에 의해 상기 제1활성탄(15)과 제2활성탄(17)이 재생(regeneration)된다.The air introduced as described above is desorbed from the fuel evaporation gas trapped by the first activated carbon 15 and the second activated carbon 17 and flows to the engine intake system, whereby the first activated carbon 15 and the second activated carbon are discharged. 17 is regenerated.

이때, 상기 공기층(19)과 상기 공기층(19)에 설치된 디퓨저(21)는 흡입되는 공기가 제2활성탄(17)에 골고루 공급될 수 있도록 하여, 제2활성탄(17)의 탈착작용 및 재생을 극대화시키게 된다. At this time, the air layer 19 and the diffuser 21 installed in the air layer 19 allows the sucked air to be evenly supplied to the second activated carbon 17, thereby desorbing and regenerating the second activated carbon 17. To maximize.

한편, 상기 제1활성탄(15)은 상기 제2활성탄(17)에 비하여 흡착성능은 다소 떨어져도 탈착성능이 상대적으로 우수하여 신속하고 충분하게 재생이 완료됨에 의해, 캐니스터(1)가 퍼지중이 아닌 경우에 벤트홀(7)을 향해 빠져나가는 기체중의 연료증발가스 성분을 충분히 흡착할 수 있어서, 결과적으로 캐니스터(1)에서 외부로 누출되는 연료증발가스의 양을 극도로 저감시킬 수 있게 된다.On the other hand, the first activated carbon 15 has a relatively good desorption performance even though the adsorption performance is somewhat lower than that of the second activated carbon 17, so that the canister 1 is not purged because the regeneration is completed quickly and sufficiently. In this case, it is possible to sufficiently adsorb the fuel evaporation gas component in the gas exiting toward the vent hole 7, and as a result, the amount of fuel evaporation gas leaking out from the canister 1 to the outside can be extremely reduced.

이상과 같이 본 발명에 의하면, 흡착성능과 탈착성능이 서로 다른 두 종류의 활성탄을 캐니스터 내에 적절히 배치하고, 상기 두 활성탄의 사이에 구비된 공기층 및 디퓨저에 의해 기체의 유동 분포를 고르게 조절함으로써, 보조 캐니스터와 같은 별도의 보조적인 구성부품을 설치하지 않고도, 캐니스터에서 대기중으로 누출되는 연료증발가스의 양을 극도로 저감시킨다. As described above, according to the present invention, two kinds of activated carbon having different adsorption performance and desorption performance are appropriately disposed in the canister, and the flow distribution of the gas is uniformly controlled by an air layer and a diffuser provided between the two activated carbons. Extremely reducing the amount of fuel evaporation gas leaking from the canister into the atmosphere without the need for additional auxiliary components such as canisters.

도 1은 본 발명에 따른 차량의 캐니스터 내부 구조를 도시한 단면도,1 is a cross-sectional view showing an internal structure of a canister of a vehicle according to the present invention;

도 2는 캐니스터의 내부에 설치된 디퓨저를 설명한 도면이다.2 is a view for explaining a diffuser installed in the canister.

<도면의 주요 부분에 대한 부호의 간단한 설명><Brief description of symbols for the main parts of the drawings>

1; 캐니스터 3; 증발가스유입구One; Canister 3; Boil-off gas inlet

5; 퍼지출구 7; 벤트홀5; Purge outlet 7; Vent hole

9; 격벽 11; 제1공간9; Bulkhead 11; First space

13; 제2공간 15; 제1활성탄13; Second space 15; First activated carbon

17; 제2활성탄 19; 공기층17; Second activated carbon 19; Air layer

21; 디퓨저 21; defuser

Claims (5)

캐니스터의 내부공간을 증발가스유입구와 퍼지출구가 연통된 제1공간과, 벤트홀이 연통된 제2공간으로 구획하는 격벽과;A partition wall partitioning the inner space of the canister into a first space in which an evaporation gas inlet and a purge outlet communicate with each other, and a second space in which a vent hole communicates; 상기 제2공간의 벤트홀 쪽에 충전된 제1활성탄과;First activated carbon filled in the vent hole of the second space; 상기 제2공간의 제1활성탄이 충전된 나머지 공간 및 상기 제1공간에 충전되고, 상기 제1활성탄보다 흡착성능은 우수하고 탈착성능은 열등한 제2활성탄;A second activated carbon filled in the remaining space filled with the first activated carbon of the second space and the first space and having better adsorption performance and inferior desorbability than the first activated carbon; 을 포함하여 구성된 것을 특징으로 하는 차량의 캐니스터.Canister of a vehicle comprising a. 제1항에 있어서,The method of claim 1, 상기 제2공간의 제1활성탄과 제2활성탄 사이에는 공기층이 구비된 것An air layer is provided between the first activated carbon and the second activated carbon in the second space. 을 특징으로 하는 차량의 캐니스터.Canister of the vehicle, characterized in that. 제2항에 있어서,The method of claim 2, 상기 공기층은 상기 벤트홀로부터 상기 제2공간의 전체 길이의 1/4~1/2의 범위 내에 설치된 것The air layer is installed in the range of 1/4 to 1/2 of the total length of the second space from the vent hole 을 특징으로 하는 차량의 캐니스터.Canister of the vehicle, characterized in that. 제2항에 있어서,The method of claim 2, 상기 공기층에는 기체의 유동이 상기 제1활성탄 및 제2활성탄으로 골고루 분산되어 이루어지도록 하는 디퓨저가 설치된 것The air layer is provided with a diffuser so that the flow of gas is evenly distributed to the first activated carbon and the second activated carbon 을 특징으로 하는 차량의 캐니스터.Canister of the vehicle, characterized in that. 제1항에 있어서,The method of claim 1, 상기 제1활성탄은 상기 제2활성탄보다 재생 성능이 우수해서, 동일한 공기 흡입량에 대하여 증발가스 잔류량이 적은 활성탄인 것The first activated carbon is an activated carbon having better regeneration performance than the second activated carbon and having a small amount of residual evaporation gas with respect to the same air intake. 을 특징으로 하는 차량의 캐니스터.Canister of the vehicle, characterized in that.
KR1020040022017A 2003-12-30 2004-03-31 Canister for a vehicle KR20050096587A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1020040022017A KR20050096587A (en) 2004-03-31 2004-03-31 Canister for a vehicle
DE102004054114A DE102004054114A1 (en) 2003-12-30 2004-11-09 Canister for vehicle, has partition dividing inner space of canister into first and second spaces, first activated charcoal, second activated charcoal, and diffuser
CNB2004100909862A CN100342127C (en) 2003-12-30 2004-11-11 Canister of vehicle
JP2004354766A JP2005195007A (en) 2003-12-30 2004-12-08 Canister of car
US11/022,229 US7294179B2 (en) 2003-12-30 2004-12-23 Canister of vehicle

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KR1020040022017A KR20050096587A (en) 2004-03-31 2004-03-31 Canister for a vehicle

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10022664B2 (en) 2016-04-20 2018-07-17 Leehan Corporation Canister for vehicle having auxiliary canister
JP2019108880A (en) * 2017-12-20 2019-07-04 フタバ産業株式会社 Canister

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002048016A (en) * 2000-07-31 2002-02-15 Toyo Roki Mfg Co Ltd Canister
JP2002048015A (en) * 2000-07-31 2002-02-15 Toyo Roki Mfg Co Ltd Evaporating fuel processing canister
KR20040017053A (en) * 2002-08-20 2004-02-26 코리아에프티 주식회사 Canister of Charge-room have Active Carbon of Multi-layer
JP2004068715A (en) * 2002-08-07 2004-03-04 Toyota Motor Corp Movable plate type canister for vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002048016A (en) * 2000-07-31 2002-02-15 Toyo Roki Mfg Co Ltd Canister
JP2002048015A (en) * 2000-07-31 2002-02-15 Toyo Roki Mfg Co Ltd Evaporating fuel processing canister
JP2004068715A (en) * 2002-08-07 2004-03-04 Toyota Motor Corp Movable plate type canister for vehicle
KR20040017053A (en) * 2002-08-20 2004-02-26 코리아에프티 주식회사 Canister of Charge-room have Active Carbon of Multi-layer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10022664B2 (en) 2016-04-20 2018-07-17 Leehan Corporation Canister for vehicle having auxiliary canister
JP2019108880A (en) * 2017-12-20 2019-07-04 フタバ産業株式会社 Canister

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