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KR20060030262A - Canister system of the vehicle - Google Patents

Canister system of the vehicle Download PDF

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Publication number
KR20060030262A
KR20060030262A KR1020040079068A KR20040079068A KR20060030262A KR 20060030262 A KR20060030262 A KR 20060030262A KR 1020040079068 A KR1020040079068 A KR 1020040079068A KR 20040079068 A KR20040079068 A KR 20040079068A KR 20060030262 A KR20060030262 A KR 20060030262A
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KR
South Korea
Prior art keywords
canister
air
close valve
vehicle
evaporation gas
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Ceased
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KR1020040079068A
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Korean (ko)
Inventor
김헌수
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현대자동차주식회사
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Priority to KR1020040079068A priority Critical patent/KR20060030262A/en
Publication of KR20060030262A publication Critical patent/KR20060030262A/en
Ceased legal-status Critical Current

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    • 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
    • F02M25/0836—Arrangement of valves controlling the admission of fuel vapour to an engine, e.g. valve being disposed between fuel tank or absorption canister and intake manifold
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/0201—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof
    • F02M35/0204—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof for connecting or joining to other devices, e.g. pipes
    • 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
    • F02M2025/0845—Electromagnetic valves

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)

Abstract

본 발명에 의하면, 캐니스터클로즈밸브 또는 캐니스터에 공급되는 공기를 여과하는 에어필터의 오염 또는 막힘 등에 의해 증발가스 퍼지 컨트롤이 원활하게 이루어지지 못하게 되는 것을 방지하여, 항상 안정된 증발가스 퍼지 컨트롤이 이루어질 수 있도록 하며, 에어필터를 사용하지 않게 되어 캐니스터의 증발가스 퍼지 작동시에 흡기저항이 발생하지 않으므로 캐니스터의 퍼지 작용이 더욱 원활하게 이루어지도록 한다.
According to the present invention, it is possible to prevent the evaporation gas purge control from being smoothly performed by contamination or clogging of the canister close valve or the air filter for filtering the air supplied to the canister, so that a stable evaporation gas purge control can be achieved at all times. In addition, since the air filter is not used, the intake resistance does not occur during the evaporation gas purge operation of the canister, so that the purge operation of the canister is made more smoothly.

Description

차량의 캐니스터 시스템{canister system of a vehicle}Canister system of a vehicle

도 1은 종래 기술에 의한 차량의 캐니스터 시스템을 도시한 개념도,1 is a conceptual diagram showing a canister system of a vehicle according to the prior art,

도 2는 본 발명에 따른 차량의 캐니스터 시스템을 도시한 개념도이다.2 is a conceptual diagram illustrating a canister system of a vehicle according to the present invention.

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

1; 연료탱크 3; 캐니스터One; Fuel tank 3; Canister

5; 퍼지컨트롤솔레노이드밸브5; Purge Control Solenoid Valve

7; 엔진 흡기계 9; 캐니스터클로즈밸브7; Engine intake 9; Canister Close Valve

11; 공기유입통로 13; 에어클리너11; Air inlet passage 13; Air cleaner

15; 스로틀밸브 15; Throttle valve

본 발명은 차량의 캐니스터 시스템에 관한 것으로서, 보다 상세하게는 캐니스터클로즈밸브(CCV: Canister Close Valve)에 관련한 기술에 대한 것이다.The present invention relates to a canister system of a vehicle, and more particularly, to a technology related to a canister close valve (CCV).

캐니스터클로즈밸브(500)는 도 1에 도시된 바와 같이 캐니스터(502)와 에어필터(504) 사이에 설치되어 있어서, 보통의 상태에서는 항시 개방된 상태를 유지하 여, 캐니스터(502) 내부로 대기중의 새로운 공기가 유입되어 캐니스터(502)에 포집되어 있던 증발가스를 엔진으로 퍼지시킬 수 있도록 하고, 캐니스터(502)로부터 공기가 대기중으로 배출될 수 있도록 하여 캐니스터(502) 및 연료탱크(506)의 내부에 압력이 발생하는 것을 방지하는 역할을 한다.As shown in FIG. 1, the canister close valve 500 is installed between the canister 502 and the air filter 504, and is kept open at all times in a normal state, and is waiting in the canister 502. New air is introduced into the engine to purge the boil-off gas collected in the canister 502, and the air can be discharged from the canister 502 to the atmosphere so that the canister 502 and the fuel tank 506 It acts to prevent pressure from occurring inside.

또한, 상기 캐니스터클로즈밸브(500)는 캐니스터(502) 시스템에서 증발가스가 누출되는지를 시험하는 증발가스 모니터링 작업시에는 폐쇄할 수 있도록 되어 있다.In addition, the canister close valve 500 is to be closed during the evaporation gas monitoring operation to test whether the evaporation gas leaks from the canister 502 system.

상기한 바와 같은 캐니스터(502) 시스템에서는 대기중으로부터 직접 에어필터(504)를 통해 공기가 유입되므로, 이물질에 의해 에어필터(504)나 캐니스터클로즈밸브(500)가 오염되어 흡기저항이 증가되어 증발가스 퍼지 컨트롤이 제대로 이루어지지 못하거나, 상기 에어필터(504)나 캐니스터클로즈밸브(500)가 막히게 되는 경우도 발생할 수 있다.In the canister 502 system as described above, since air is directly introduced from the air through the air filter 504, the air filter 504 or the canister close valve 500 are contaminated by foreign matters, so that the intake resistance is increased and evaporates. Gas purge control may not be performed properly, or the air filter 504 or the canister close valve 500 may be blocked.

본 발명은 캐니스터클로즈밸브 또는 캐니스터에 공급되는 공기를 여과하는 에어필터의 오염 또는 막힘 등에 의해 증발가스 퍼지 컨트롤이 원활하게 이루어지지 못하게 되는 것을 방지하여, 항상 안정된 증발가스 퍼지 컨트롤이 이루어질 수 있도록 한 차량의 캐니스터 시스템을 제공함에 그 목적이 있다.The present invention prevents the evaporation gas purge control from being smoothly prevented by contamination or clogging of the canister close valve or the air filter for filtering the air supplied to the canister, so that a stable evaporation gas purge control can be achieved at all times. Its purpose is to provide a canister system.

상기한 바와 같은 목적을 달성하기 위한 본 발명 차량의 캐니스터 시스템은 The canister system of the vehicle of the present invention for achieving the above object is

입구포트와 출구포트 사이의 연통상태를 전환할 수 있도록 되어 있고, 상기 출구포트는 캐니스터에 연통되도록 설치된 캐니스터클로즈밸브와;A canister close valve configured to switch a communication state between the inlet port and the outlet port, the outlet port being installed to communicate with the canister;

엔진 흡기계와 상기 캐니스터클로즈밸브의 입구포트를 연결하는 공기유입통로;An air inlet passage connecting an engine intake machine and an inlet port of the canister close valve;

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

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 2를 참조하면, 연료탱크(1)의 증발가스를 캐니스터(3)에서 포집할 수 있도록 되어 있고, 상기 캐니스터(3)에서 포집된 증발가스는 퍼지컨트롤솔레노이드밸브(5)를 통해 엔진의 흡기계(7)로 퍼지시킬 수 있도록 되어 있다.Referring to FIG. 2, it is possible to collect the boil-off gas of the fuel tank 1 in the canister 3, and the boil-off gas collected in the canister 3 is absorbed by the engine through the purge control solenoid valve 5. It is possible to purge with the machine (7).

상기 캐니스터(3)에는 입구포트와 출구포트 사이의 연통상태를 전환할 수 있도록 되어 있는 캐니스터클로즈밸브(9)가 연결되어 있는데, 구체적으로는 상기 캐니스터클로즈밸브(9)의 출구포트가 상기 캐니스터(3)에 연통되도록 설치된 구조이다.The canister close valve 9 is connected to the canister 3 so as to switch the communication state between the inlet port and the outlet port. Specifically, the outlet port of the canister close valve 9 is the canister ( It is installed to communicate with 3).

상기 캐니스터클로즈밸브(9)의 입구포트는 공기유입통로(11)를 통해 엔진 흡기계(7)에 연결된 구조이다.The inlet port of the canister close valve 9 is connected to the engine intake machine 7 through the air inlet passage 11.

본 실시예에서 상기 공기유입통로(11)는 엔진 흡기계(7)의 에어클리너(13)와 스로틀밸브(15) 사이로 연결된 구조이며, 내부에 오리피스(17)가 설치되어 엔진의 맥동이 발생하지 않도록 하고 있다.In this embodiment, the air inflow passage 11 is a structure connected between the air cleaner 13 and the throttle valve 15 of the engine intake machine 7, the orifice 17 is installed therein does not cause pulsation of the engine I do not.

따라서, 상기 엔진 흡기계(7)를 통해서 실린더로 유입되는 공기 중의 일부를 상기 공기유입통로(11)를 통해 상기 캐니스터클로즈밸브(9)로 공급할 수 있는 구조이다.Therefore, a part of the air flowing into the cylinder through the engine intake system 7 can be supplied to the canister close valve 9 through the air inflow passage 11.

상기 엔진 흡기계(7)에서는 상기 에어클리너(13)를 통해 이미 대기중의 이물질을 충분히 여과한 상태의 깨끗한 공기가 유입되므로, 상기 공기유입통로(11)를 통해 상기 캐니스터클로즈밸브(9)로 공급되는 공기도 충분히 깨끗한 상태가 확보된다.In the engine intake machine 7, clean air is introduced through the air cleaner 13 in a state where sufficient foreign matter is already filtered. Therefore, the air inlet passage 11 passes through the air inlet passage 11 to the canister close valve 9. The air supplied is also sufficiently clean.

따라서, 종래에 상기 캐니스터(3)로 공급될 공기를 여과하기 위해 설치하였던 별도의 에어필터는 필요하지 않게 되었으며, 상기 에어필터의 오염이나 막힘에 의해 캐니스터 시스템이 불안정한 동작을 하거나 고장을 일으키게 되는 것을 방지할 수 있게 된다.Therefore, a separate air filter, which is conventionally installed to filter the air to be supplied to the canister 3, is not necessary, and the canister system may be unstable in operation or cause a failure due to contamination or blockage of the air filter. It can be prevented.

물론, 본 발명과 같은 구조에서는 상기 캐니스터클로즈밸브(9)에서도 에어클리너(13)를 통해 충분히 정화된 공기에 의해 오염이나 막힘 현상이 발생하지 않게 되므로, 역시 캐니스터 시스템의 안정된 동작성을 확보하도록 해주게 된다.Of course, in the same structure as the present invention, the canister close valve 9 also prevents contamination or clogging due to air that is sufficiently purified through the air cleaner 13, thereby ensuring stable operation of the canister system. do.

즉, 캐니스터(3)에 포집되어 있는 증발가스를 퍼지하는 동안에는 상기 엔진의 흡기계(7)로부터 상기 공기유입통로(11)를 통해 에어클리너(13)에서 정화된 깨끗한 공기가 상기 캐니스터클로즈밸브(9)를 통해 캐니스터(3)로 유입되게 되며, 캐니스터(3) 내부에 발생되는 압력을 해소하고자 할 때에는, 캐니스터(3)로부터의 공기가 상기 캐니스터클로즈밸브(9) 및 공기유입통로(11)를 역류하여, 상기 엔진 흡기계(7)로 배출되는 것이다.That is, while purging the boil-off gas collected in the canister 3, clean air purified by the air cleaner 13 from the intake system 7 of the engine through the air inflow passage 11 is connected to the canister close valve ( 9) is introduced into the canister (3), and when the pressure generated in the canister (3) is to be released, air from the canister (3) is the canister close valve (9) and the air inlet passage (11) Is reversed to be discharged to the engine intake machine (7).

한편, 증발가스 모니터링 작업시에는 상기 캐니스터클로즈밸브(9)의 입구포트와 출구포트 사이의 연통상태를 폐쇄하도록 하여, 종래와 동일한 방법으로 증발 가스 모니터링 작업을 수행할 수 있다.On the other hand, during the evaporation gas monitoring operation to close the communication state between the inlet port and the outlet port of the canister close valve 9, it is possible to perform the evaporation gas monitoring operation in the same manner as in the prior art.

이상과 같이 본 발명에 의하면, 캐니스터클로즈밸브 또는 캐니스터에 공급되는 공기를 여과하는 에어필터의 오염 또는 막힘 등에 의해 증발가스 퍼지 컨트롤이 원활하게 이루어지지 못하게 되는 것을 방지하여, 항상 안정된 증발가스 퍼지 컨트롤이 이루어질 수 있도록 하며, 에어필터를 사용하지 않게 되어 캐니스터의 증발가스 퍼지 작동시에 흡기저항이 발생하지 않으므로 캐니스터의 퍼지 작용이 더욱 원활하게 이루어지도록 한다. As described above, according to the present invention, it is possible to prevent the evaporation gas purge control from being performed smoothly due to contamination or clogging of the canister close valve or the air filter for filtering the air supplied to the canister, so that the evaporation gas purge control is always stable Since the air filter is not used, intake resistance does not occur during the evaporation gas purge operation of the canister, so that the purge action of the canister is made more smoothly.

Claims (3)

입구포트와 출구포트 사이의 연통상태를 전환할 수 있도록 되어 있고, 상기 출구포트는 캐니스터에 연통되도록 설치된 캐니스터클로즈밸브와;A canister close valve configured to switch a communication state between the inlet port and the outlet port, the outlet port being installed to communicate with the canister; 엔진 흡기계와 상기 캐니스터클로즈밸브의 입구포트를 연결하는 공기유입통로;An air inlet passage connecting an engine intake machine and an inlet port of the canister close valve; 를 포함하여 구성된 것을 특징으로 하는 차량의 캐니스터 시스템.Canister system of a vehicle, characterized in that configured to include. 제1항에 있어서,The method of claim 1, 상기 공기유입통로는 엔진 흡기계의 에어클리너와 스로틀밸브 사이로 연결된 것The air inlet passage is connected between the air cleaner and the throttle valve of the engine intake machine 을 특징으로 하는 차량의 캐니스터 시스템.Canister system of a vehicle, characterized in that. 제1항에 있어서,The method of claim 1, 상기 공기유입통로에는 오리피스가 설치된 것Orifice is installed in the air inlet passage 을 특징으로 하는 차량의 캐니스터 시스템.Canister system of a vehicle, characterized in that.
KR1020040079068A 2004-10-05 2004-10-05 Canister system of the vehicle Ceased KR20060030262A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020040079068A KR20060030262A (en) 2004-10-05 2004-10-05 Canister system of the vehicle

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Application Number Priority Date Filing Date Title
KR1020040079068A KR20060030262A (en) 2004-10-05 2004-10-05 Canister system of the vehicle

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KR20060030262A true KR20060030262A (en) 2006-04-10

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KR1020040079068A Ceased KR20060030262A (en) 2004-10-05 2004-10-05 Canister system of the vehicle

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