JPS6241939B2 - - Google Patents
Info
- Publication number
- JPS6241939B2 JPS6241939B2 JP54047836A JP4783679A JPS6241939B2 JP S6241939 B2 JPS6241939 B2 JP S6241939B2 JP 54047836 A JP54047836 A JP 54047836A JP 4783679 A JP4783679 A JP 4783679A JP S6241939 B2 JPS6241939 B2 JP S6241939B2
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- tank
- orifice
- engine
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000446 fuel Substances 0.000 claims description 23
- 239000002828 fuel tank Substances 0.000 claims description 23
- 238000009423 ventilation Methods 0.000 claims description 8
- 239000000945 filler Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 238000013022 venting Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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
- 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
- F02M37/0076—Details of the fuel feeding system related to the fuel tank
-
- 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
- F02M37/20—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 characterised by means for preventing vapour lock
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Supercharger (AREA)
Description
【発明の詳細な説明】
本発明は燃料タンクの通気に関し、特に、加圧
燃料タンク通気システムに関する。DETAILED DESCRIPTION OF THE INVENTION This invention relates to fuel tank venting, and more particularly to pressurized fuel tank venting systems.
従来から、燃料タンクにおける供油口には、燃
料が引き出されてエンジンによつて使用されるに
従い、大気がこの燃料タンクに入るようにしたア
ンチスラツシ通気（anti−slosh−vented）燃料
フイルタキヤツプが、使用されてきた。しかし、
このようなキヤツプにおいては、農耕車輌のよう
な汚れた操作環境で操作される場合には、ゴミが
空気と共にタンク内に引き入れられて燃料を汚す
とともに燃料ポンプを通り供給されると大きな摩
耗を生じ、また、燃料フイルタ内に蓄積されてフ
イルタの寿命を縮めるという欠点を有していた。 Traditionally, the fill port in a fuel tank has an anti-slosh-vented fuel filter cap that allows atmospheric air to enter the fuel tank as the fuel is withdrawn and used by the engine. has been used. but,
In such caps, when operated in dirty operating environments such as agricultural vehicles, debris can be drawn into the tank along with the air, contaminating the fuel and causing significant wear when fed through the fuel pump. Moreover, it has the disadvantage that it accumulates in the fuel filter, shortening the life of the filter.
本発明は、ターボチヤージドエンジンにおける
ターボチヤージヤの圧縮出口側からの圧縮空気を
燃料タンクに供給し、タンク内に一定の制限され
た圧力を生ぜしめてエンジンが操作されている
間、燃料タンクを外部のゴミ等から完全に密封で
きるようにするシステムを提供するものである。 The present invention supplies compressed air from the compressed outlet side of the turbocharger to a fuel tank in a turbocharged engine, creating a constant, limited pressure in the tank to keep the fuel tank outside while the engine is operating. It provides a system that can be completely sealed from dust and the like.
すなわち、本発明に係る燃料タンク通気システ
ムは、エンジンと；ろ過空気を供給するための空
気フイルタと；このフイルタに接続された入口と
上記エンジンに接続されて加圧空気を供給するた
めの出口とを有するターボチヤージヤと；給油口
を密封するためのキヤツプを備える燃料タンク
と；一端が上記ターボチヤージヤの出口に接続さ
れ、他端が上記タンクに接続されて、加圧空気を
燃料タンクに供給して該タンクからエンジンに供
給された燃料と置換させるようにした通気手段
と；上記ターボチヤージヤの出口と燃料タンクと
の間で上記通気手段の中に設けられ空気の流れを
制限する第１オリフイスと；該オリフイスと上記
タンクとの間で大気に連通するように上記通気手
段に設けられた第２オリフイスと；を備えてい
る。 That is, the fuel tank ventilation system according to the present invention includes: an engine; an air filter for supplying filtered air; an inlet connected to the filter; and an outlet connected to the engine for supplying pressurized air. a fuel tank having a cap for sealing a fuel filler; one end connected to the outlet of the turbocharger and the other end connected to the tank for supplying pressurized air to the fuel tank; a first orifice disposed within the vent means between the outlet of the turbocharger and the fuel tank to restrict the flow of air; a first orifice configured to displace fuel supplied to the engine from the tank; and a second orifice provided in the ventilation means so as to communicate with the atmosphere between the tank and the tank.
本発明に係る通気システムは、以上のごとき構
成を有するものであり、オリフイスの断面積等を
適宜設計することにより、タンク内の圧力を空気
圧を適正に保つことができ、従つて、周囲の外気
がタンク内に入り込み、内部を汚染するのを防止
することが出来る。更に、タンク内を大気圧より
も高い圧力にするので、タンクからエンジンへの
燃料供給が円滑に行うことが出来る。 The ventilation system according to the present invention has the above configuration, and by appropriately designing the cross-sectional area of the orifice, the pressure inside the tank can be maintained at an appropriate pneumatic pressure, and therefore the surrounding outside air can be maintained properly. This prevents water from entering the tank and contaminating the inside. Furthermore, since the pressure inside the tank is higher than atmospheric pressure, fuel can be smoothly supplied from the tank to the engine.
以下、本発明を添付図面に示した実施例に基づ
き詳細に説明する。 Hereinafter, the present invention will be described in detail based on embodiments shown in the accompanying drawings.
添付図面には、加圧燃料タンク通気システムが
参照番号１０で示されている。このシステム１０
はエンジン空気フイルタ１２を有している。この
フイルタは汎用のエンジン駆動ターボチヤージヤ
２０の入口１８に接続されたろ過空気出口１６と
空気入口１４とを有している。大気圧の空気を圧
縮即ち加圧するターボチヤージヤ２０は、圧力側
出口２２を有し、この出口は汎用の内燃機関（エ
ンジン）２６の空気入口２４と接続されている。 A pressurized fuel tank venting system is designated by the reference numeral 10 in the accompanying drawings. This system 10
has an engine air filter 12. The filter has a filtered air outlet 16 and an air inlet 14 connected to an inlet 18 of a general purpose engine-driven turbocharger 20. A turbocharger 20 for compressing or pressurizing air at atmospheric pressure has a pressure side outlet 22 which is connected to an air inlet 24 of a general-purpose internal combustion engine 26.
エンジン２６は燃料タンク２８から燃料を供給
される。燃料タンク２８は通気性のない密封型の
燃料フイルタキヤツプ３２がかぶせられた燃料供
給部（給油口）３０を有している。燃料タンク２
８は燃料バルブ３４によつて汎用の燃料ポンプ３
６に接続される。燃料ポンプ３６は汎用の燃料フ
イルタ３７に接続され、それからエンジンの燃料
噴射システム（図示せず）に接続されている。 The engine 26 is supplied with fuel from a fuel tank 28. The fuel tank 28 has a fuel supply portion (fuel filler port) 30 covered with a sealed fuel filter cap 32 having no air permeability. fuel tank 2
8 is a general-purpose fuel pump 3 by means of a fuel valve 34.
Connected to 6. Fuel pump 36 is connected to a general purpose fuel filter 37 and then to the engine's fuel injection system (not shown).
燃料タンク２８は通気手段としての空気パイプ
４０によつて通気されている。パイプ４０の一部
は圧力制限ブロツク４２に接続され、他の部分は
ターボチヤージヤ２０の出口２２に接続されてい
る。圧力制限ブロツク４２は空気フイルタ４４を
有し、該フイルタはろ過された加圧空気を第１の
オリフイス４６に通す。圧力制限ブロツク４２は
第１のオリフイスと燃料タンク２８との間に第２
のオリフイス４８を有し、このオリフイスは大気
に通じている。 The fuel tank 28 is ventilated by an air pipe 40 as a venting means. A portion of the pipe 40 is connected to a pressure limiting block 42 and another portion is connected to the outlet 22 of the turbocharger 20. Pressure restriction block 42 includes an air filter 44 that passes filtered pressurized air to a first orifice 46. A pressure limiting block 42 has a second orifice between the first orifice and the fuel tank 28.
orifice 48, which communicates with the atmosphere.
操作において、大気はターボチヤージヤ２０に
よつてエンジン空気フイルタ１２を通してフイル
タ１２を通して引かれ、ターボチヤージヤ内で圧
縮、加圧されてその出口に供給される。この加圧
空気の大部分はエンジン２６に通されるが、その
一部は空気パイプ４０に流れ、フイルタ４４を通
る。このフイルタを通つた加圧空気はオリフイス
４６を通り、パイプ４０に入り、燃料タンク２８
の頂部に到る。タンク２８に入る加圧空気はタン
クを加圧し、燃料ポンプを通して内燃機関２６に
供給される燃料に置き換えられる。加えて、タン
ク内の圧力は燃料をエンジンに送るポンプを助け
る。タンク内の圧力を25.4cm水柱（25ｍbar）に
制限するため、大気に通じるオリフイス４８はオ
リフイス４６の約９倍の断面を有している。 In operation, atmospheric air is drawn through the engine air filter 12 by the turbocharger 20, compressed and pressurized within the turbocharger and delivered to its outlet. Most of this pressurized air is passed through the engine 26, but some of it flows into the air pipe 40 and passes through the filter 44. Pressurized air passing through this filter passes through an orifice 46 and enters a pipe 40 into a fuel tank 28.
reach the top of. Pressurized air entering tank 28 pressurizes the tank and is replaced by fuel that is supplied to internal combustion engine 26 through the fuel pump. Additionally, the pressure within the tank helps the pump deliver fuel to the engine. Orifice 48, which communicates with the atmosphere, has a cross-section approximately nine times larger than orifice 46 in order to limit the pressure within the tank to 25.4 cm water column (25 mbar).
エンジン２６が無負荷でアイドリング状態にあ
り、ターボチヤージヤ２０が空気を圧縮する程度
には速く運転されておらず、エンジン２６が入口
２４における圧力を大気圧以下に下げると、空気
は第２のオリフイス４８から引かれ、エンジン２
６に到る前にフイルタ４４によつてろ過される。 When the engine 26 is idling with no load and the turbocharger 20 is not running fast enough to compress air and the engine 26 reduces the pressure at the inlet 24 below atmospheric pressure, the air flows through the second orifice 48. pulled from, engine 2
6, it is filtered by a filter 44.
キヤツプ３２は密封され通気を行わないので、
全システム１０は操作の間、汚染されない。従つ
て、燃料は汚れず、エンジンフイルタもポンプも
その寿命が延びる。 Since the cap 32 is sealed and does not provide ventilation,
The entire system 10 is free of contamination during operation. Therefore, the fuel is not contaminated and the life of the engine filter and pump is extended.
添付図面は本発明に係る燃料タンク通気システ
ムを示す一部断面説明図である。
１０……燃料タンク通気システム、１２……空
気フイルタ、２０……ターボチヤージヤ、２６…
…エンジン、２８……燃料タンク、３２……キヤ
ツプ、４０……通気手段、４６……第１オリフイ
ス、４８……第２オリフイス。
The accompanying drawing is a partially sectional explanatory view showing a fuel tank ventilation system according to the present invention. 10...Fuel tank ventilation system, 12...Air filter, 20...Turbo charger, 26...
...Engine, 28...Fuel tank, 32...Cap, 40...Vent means, 46...First orifice, 48...Second orifice.
Claims (1)
フイルタと；このフイルタに接続された入口と上
記エンジンに接続されて加圧空気を供給するため
の出口とを有するターボチヤージヤと；給油口を
密封するためのキヤツプを備える燃料タンクと；
一端が上記ターボチヤージヤの出口に接続され、
他端が上記タンクに接続されて加圧空気を燃料タ
ンクに供給して該タンクからエンジンに供給され
た燃料と置換させるようにした通気手段と；上記
ターボチヤージヤの出口と燃料タンクとの間で上
記通気手段の中に設けられ空気の流れを制限する
第１オリフイスと；該オリフイスと上記タンクと
の間で大気に連通するように上記通気手段に設け
られた第２オリフイスと；を備える燃料タンク通
気システム。 ２ 特許請求の範囲第１項に記載のシステムにお
いて、第２オリフイスが第１オリフイスの約９倍
の断面積を有しているシステム。 ３ 特許請求の範囲第２項に記載のシステムにお
いて、ターボチヤージヤの出口と第１オリフイス
との間の通気手段内にフイルタを設けたシステ
ム。Claims: 1. An engine; an air filter for supplying filtered air; a turbocharger having an inlet connected to the filter and an outlet connected to the engine for supplying pressurized air; a fuel tank having a cap for sealing the fuel filler;
one end is connected to the outlet of the turbocharger,
a ventilation means, the other end of which is connected to the tank for supplying pressurized air to the fuel tank to replace fuel supplied to the engine from the tank; A fuel tank vent comprising: a first orifice disposed in the vent means to restrict air flow; and a second orifice disposed in the vent means to communicate with the atmosphere between the orifice and the tank. system. 2. The system of claim 1, wherein the second orifice has a cross-sectional area approximately nine times that of the first orifice. 3. The system according to claim 2, wherein a filter is provided in the ventilation means between the outlet of the turbocharger and the first orifice.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/897,357 US4164919A (en) | 1976-09-20 | 1978-04-18 | Tank vent system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54151727A JPS54151727A (en) | 1979-11-29 |
| JPS6241939B2 true JPS6241939B2 (en) | 1987-09-05 |
Family
ID=25407819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4783679A Granted JPS54151727A (en) | 1978-04-18 | 1979-04-18 | Fuel tank ventilation system |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS54151727A (en) |
| AT (1) | AT367357B (en) |
| AU (1) | AU526178B2 (en) |
| DE (1) | DE2910980C2 (en) |
| ES (1) | ES479652A1 (en) |
| FR (1) | FR2423363A1 (en) |
| GB (1) | GB2018891A (en) |
| IT (1) | IT1115142B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2702797B2 (en) * | 1989-03-07 | 1998-01-26 | 株式会社太平製作所 | Sawing machine |
| US10605163B2 (en) | 2014-10-16 | 2020-03-31 | Obrist Technologies Gmbh | Power unit |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2124703B (en) * | 1982-08-03 | 1985-07-31 | Lucas Ind Plc | Fuel supply system for an internal combustion engine |
| DE102017213002A1 (en) * | 2017-07-27 | 2019-01-31 | Fränkische Industrial Pipes GmbH & Co. KG | line arrangement |
| JP7251349B2 (en) * | 2019-06-21 | 2023-04-04 | コベルコ建機株式会社 | working machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4940168U (en) * | 1972-07-12 | 1974-04-09 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1432714A (en) * | 1921-10-21 | 1922-10-17 | Jesse L Burns | Attachment for fuel tanks |
| US1471417A (en) * | 1922-11-07 | 1923-10-23 | Rateau Auguste Camille Edmond | Means to maintain a. suitable pressure in the liquid-fuel-storage tanks of airplanes |
| US1706772A (en) * | 1927-03-02 | 1929-03-26 | Earthen H Camfield | Filter for tanks |
| US1737161A (en) * | 1927-08-19 | 1929-11-26 | Int Motor Co | Gas-line feed |
| DE1025283B (en) * | 1954-10-18 | 1958-02-27 | Goodyear Tire & Rubber | Liquid containers, especially for vehicles |
| DE1743432U (en) * | 1955-08-25 | 1957-04-18 | Bosch Gmbh Robert | FUEL INJECTION SYSTEM. |
| GB1179657A (en) * | 1968-10-02 | 1970-01-28 | Ford Motor Co | Fuel Vapour Emission Control System |
| US3592175A (en) * | 1968-12-06 | 1971-07-13 | Allis Chalmers Mfg Co | Pressurized fuel system |
| US3846983A (en) * | 1973-11-19 | 1974-11-12 | Caterpillar Tractor Co | Hydraulic fluid reservoir pressurization arrangement |
-
1979
- 1979-02-01 AU AU43860/79A patent/AU526178B2/en not_active Ceased
- 1979-03-21 DE DE2910980A patent/DE2910980C2/en not_active Expired
- 1979-03-27 GB GB7910723A patent/GB2018891A/en not_active Withdrawn
- 1979-03-29 FR FR7907886A patent/FR2423363A1/en active Granted
- 1979-04-13 IT IT48740/79A patent/IT1115142B/en active
- 1979-04-17 ES ES479652A patent/ES479652A1/en not_active Expired
- 1979-04-18 AT AT0289979A patent/AT367357B/en not_active IP Right Cessation
- 1979-04-18 JP JP4783679A patent/JPS54151727A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4940168U (en) * | 1972-07-12 | 1974-04-09 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2702797B2 (en) * | 1989-03-07 | 1998-01-26 | 株式会社太平製作所 | Sawing machine |
| US10605163B2 (en) | 2014-10-16 | 2020-03-31 | Obrist Technologies Gmbh | Power unit |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2018891A (en) | 1979-10-24 |
| FR2423363B1 (en) | 1983-08-19 |
| AU526178B2 (en) | 1982-12-23 |
| JPS54151727A (en) | 1979-11-29 |
| IT1115142B (en) | 1986-02-03 |
| ATA289979A (en) | 1981-11-15 |
| ES479652A1 (en) | 1980-01-01 |
| AU4386079A (en) | 1979-10-25 |
| DE2910980A1 (en) | 1980-09-25 |
| DE2910980C2 (en) | 1982-11-18 |
| IT7948740A0 (en) | 1979-04-13 |
| FR2423363A1 (en) | 1979-11-16 |
| AT367357B (en) | 1982-06-25 |
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