WO2017183268A1 - Conduit d'admission d'air - Google Patents

Conduit d'admission d'air Download PDF

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Publication number
WO2017183268A1
WO2017183268A1 PCT/JP2017/005405 JP2017005405W WO2017183268A1 WO 2017183268 A1 WO2017183268 A1 WO 2017183268A1 JP 2017005405 W JP2017005405 W JP 2017005405W WO 2017183268 A1 WO2017183268 A1 WO 2017183268A1
Authority
WO
WIPO (PCT)
Prior art keywords
air intake
head portion
duct
air
intake duct
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.)
Ceased
Application number
PCT/JP2017/005405
Other languages
English (en)
Japanese (ja)
Inventor
木村　昌裕
高広 松橋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hino Motors Ltd
Original Assignee
Hino Motors Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP2016083593A external-priority patent/JP6626776B2/ja
Priority claimed from JP2016083594A external-priority patent/JP6689528B2/ja
Priority claimed from JP2016085689A external-priority patent/JP6660801B2/ja
Application filed by Hino Motors Ltd filed Critical Hino Motors Ltd
Priority to CN201780024778.8A priority Critical patent/CN109072829A/zh
Publication of WO2017183268A1 publication Critical patent/WO2017183268A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • B60K13/00—Arrangement in connection with combustion air intake or gas exhaust of propulsion units
    • B60K13/02—Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning intake
    • 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
    • F02M35/10—Air intakes; Induction 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/16—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines characterised by use in vehicles

Definitions

  • the present invention relates to an intake duct.
  • an intake duct extending in the vertical direction is installed on the rear surface of the cab.
  • An air intake duct 3 having an air intake port 2 opened on the upper surface of the air intake 1 has been proposed.
  • a duct body 4 installed on the rear surface of the cab 1 to form an outer shell structure, and the air The intake duct 3 is configured to include a louver 5 that covers the intake port 2 and prevents direct rainwater entry (snow penetration is similarly prevented).
  • the intake efficiency of the intake air into each cylinder of the engine is increased by taking in the sufficiently cooled outside air that is less affected by the hot air from the engine room, and moreover clean air is supplied at a higher position.
  • the service life of the air cleaner can be extended, and the operation state with little pressure loss can be maintained for a long period of time, thereby improving the fuel efficiency.
  • the duct body 4 is configured to include a portion 4a and a duct portion 4b extending downward from the rear lower surface of the head portion 4a and extending along the rear surface of the cab 1.
  • the duct body 4 is configured to include a portion 4a and a duct portion 4b extending downward from the rear lower surface of the head portion 4a and extending along the rear surface of the cab 1.
  • the present invention has been made in view of the above circumstances, and an object of the present invention is to provide an intake duct that can prevent rain and snow from entering the duct.
  • the present invention is an intake duct that takes in outside air as intake air for an engine from an air intake opening that is open to the vehicle width direction outside of a head portion that rides on an upper surface of a cab of a vehicle, and includes a rear surface of the cab from a rear lower surface of the head portion
  • the air intake opening is opened, avoiding directly above the duct portion extending downward along the air passage, and a step is formed at the rear end of the air intake opening in the vehicle width direction, and an arc shape is formed between the steps in a plan view. It is characterized in that a guide portion that is continuous by a curved surface is formed.
  • a dredging wall for blocking water accumulated on the bottom surface of the head portion at a position adjacent to the guide portion in the head portion.
  • the head part back and forth with the rear end of the air intake as a boundary, and to form a wall on the lower side of the open end surface in the rear part of the divided head part.
  • the head part is divided into front and rear parts, the front part of the head part integrated with the partition plate by wrapping and solidifying the partition plate for smoothly circulating outside air as an insert product with molten resin. It becomes possible to form easily, and it is also possible to efficiently secure a large cross-sectional area of the flow path as compared with the case where a separate partition plate is assembled by post-processing.
  • a louver that covers the side of the head portion on the outer side in the vehicle width direction and extends directly above the duct portion beyond the opening range of the air intake port. It is possible to maintain a good-looking appearance in terms of design, while opening the air intake opening avoiding the above.
  • a drainage passage around the air intake port on the upper surface of the head portion which receives rainwater flowing down the upper surface of the head portion and flows down to the side of the air intake port.
  • the drainage passage by a groove shape recessed in the upper surface of the head portion, and in this way, it becomes possible to easily form the drainage passage by a mold at the time of blow molding of the intake duct. At the same time, it is possible to prevent the appearance from deteriorating as a drainage passage that is not noticeable and has no protruding portion.
  • the outside air is circulated from the front side of the head portion to be a flow toward the duct portion, and rain and snow can be deviated from the outside air flow during the wraparound to prevent entry into the duct portion, Air that can prevent direct intrusion of rain or snow from the air intake into the duct, and also has a guide that directs the flow of outside air that passes through the rear end of the air intake to the front of the vehicle, making it easy to increase the flow velocity. Since the flow of outside air behind the intake port is turned around so as to be once away from the duct part, the amount of rain and snow falling can be increased more than before, making it difficult for the rain and snow to be taken into the air intake, Rain and snow can be reliably prevented from entering the duct.
  • the head part is divided into the front and rear parts with the rear end of the air intake as a boundary, and a saddle wall is formed below the open end surface in the rear part of the divided head part, the rear of the head part
  • the wall can be easily formed integrally when blow molding the duct part including the part, and even when the wall is attached as a separate part by post-processing, the wall can be easily attached before assembling the front part of the head part. It can be performed.
  • the drainage passage is formed by the groove shape recessed on the upper surface of the head portion, the drainage passage can be easily formed by a mold at the time of blow molding of the intake duct. It is also possible to prevent the appearance from deteriorating as an inconspicuous drainage passage without a protruding portion.
  • FIG. 4 It is a perspective view which shows a prior art example. It is a perspective view shown in the state which decomposed
  • FIG. 2 and 3 show an example of an embodiment for carrying out the present invention, and portions denoted by the same reference numerals as those in FIG. 1 represent the same items.
  • the intake duct 6 in the present embodiment is installed on the rear surface of the cab 1 to form an outer shell structure, as in the case of the conventional intake duct 3 described above with reference to FIG. And a louver 5 that covers the air intake 2 and prevents direct rainwater descent (similarly preventing snow intrusion in the same manner).
  • the duct includes a head portion 4a that opens the entrance 2 to the outside in the vehicle width direction (left side in FIG. 1), and a duct portion 4b that extends downward from the lower surface of the rear portion of the head portion 4a and extends along the rear surface of the cab 1.
  • the air intake port 2 of the head portion 4a is opened to avoid the position directly above the duct portion 4b, and a step is formed at the rear end of the air intake port 2 in the vehicle width direction. And an arc between the steps in plan view When forming the guide portion 7 is continuous (see FIG. 3) by a concave curved surface constituting a is a feature.
  • the head is placed on the rear portion 4ar that is directly above the duct portion 4b in the head portion 4a and the front portion 4af that extends forward and rides on the upper surface of the cab 1.
  • the portion 4a is divided, and the side surface 8 is left outside the rear portion 4ar in the vehicle width direction, while the outer side in the vehicle width direction of the front portion 4af is opened to form the air intake port 2.
  • the head portion 4a in this embodiment has a structure that is divided forward and backward with the rear end of the air intake port 2 as a boundary, and the lower side of the open end surface 9 in the rear portion 4ar of the divided head portion 4a. Further, a ridge wall 10 extending in the vehicle width direction is formed adjacent to the guide portion 7 so that water accumulated on the bottom surface 11 of the head portion 4a can be dammed by the ridge wall 10.
  • the eaves wall 10 when forming the eaves wall 10 below the open end surface 9 of the rear part 4ar, the eaves wall 10 may be integrally formed during blow molding of the duct part 4b including the rear part 4ar of the head part 4a. Although it is good, before attaching the front part 4af of the head part 4a, it is also possible to attach the collar wall 10 as a separate part by post-processing.
  • the bottom surface 11 of the head portion 4a is inclined so that the water accumulated on the bottom surface 11 flows back to the air intake 2 side, and the water is supplied by a drip channel 12 provided at the lower end of the air intake 2. It collect
  • a recess is formed at the lowest position of the fitting portion with the rear portion 4ar in the front portion 4af of the head portion 4a, and the front portion 4af is What is necessary is just to make it form a clearance gap between the said recessed part 10 and the said wall 10 when it fits to the back part 4ar, and to utilize this clearance gap as the drain outlet 13.
  • the outside air taken inward in the vehicle width direction from the air intake port 2 flows into the rear of the vehicle in the head portion 4a, so that the head can be guided smoothly.
  • the partition plate 14 is built in the portion 4a.
  • the partition plate 14 is wrapped in molten resin as an insert and solidified, thereby integrating the partition plate 14. It can be formed as a front portion 4af of the head portion 4a.
  • a louver 5 is mounted on the side surface of the head portion 4a on the outer side in the vehicle width direction so as to cover the air intake 2 beyond the opening range of the head portion 4a and directly above the duct portion 4b.
  • the air intake port 2 is opened so as to avoid a position directly above the duct portion 4b, so that outside air circulates from the front side of the head portion 4a and enters the duct portion 4b.
  • rain or snow collides with the wall surface or falls to the bottom surface 11 to deviate from the flow of the outside air and prevent entry into the duct portion 4b.
  • the direct entry of rain and snow into the portion 4b is also prevented.
  • the rain or snow melting water remaining in the head portion 4a after being prevented from entering the duct portion 4b is reliably dammed by the dredging wall 10 so as not to enter the duct portion 4b side, and the head portion 4a It flows down to the drip channel 12 due to the inclination attached to the bottom surface 11 and is collected, guided to the wall 10 side by the drip channel 12 and discharged from the drain port 13 to the outside of the head portion 4a.
  • the outside air is circulated from the front side of the head portion 4a to flow toward the duct portion 4b, and rain and snow are deviated from the flow of the outside air during the wraparound to the duct portion 4b.
  • the flow of outside air behind the air intake 2 where the flow velocity tends to be increased by the portion 7 is increased so as to be once away from the duct portion 4b, thereby increasing the amount of rain and snow falling from the conventional level. Since it is possible to make it difficult for snow to be taken into the air intake 2, it is possible to reliably prevent rain and snow from entering the duct portion 4b.
  • rain and snow melting water remaining in the head portion 4a can be reliably dammed by the wall 10 so as not to enter the duct portion 4b side, and the outside air is greatly guided by being guided by the guide portion 7.
  • Intrusion into the duct part 4b can be reliably prevented by simply dropping rain or snow below the height of the wall 10 in between.
  • the head portion 4a is divided into front and rear portions with the rear end of the air intake port 2 as a boundary, and the eaves wall 10 is provided below the open end surface of the rear portion 4ar of the divided head portion 4a. Since the ridge wall 10 can be easily formed integrally when blow-molding the duct portion 4b including the rear portion 4ar of the head portion 4a, and the ridge wall 10 is attached as a separate part by post-processing. Even if it exists, if it is a stage before the front part 4af of the head part 4a is assembled
  • the head part 4a is divided into front and rear parts, the head part 4a in which the partition plate 14 is integrated by wrapping and solidifying the partition plate 14 for smoothly circulating outside air as an insert product with molten resin.
  • the front portion 4af can be easily formed, and the flow passage cross-sectional area can be secured efficiently and larger than the case where the separate partition plate 14 is assembled by post-processing.
  • louver 5 covers the side surface of the head portion 4a on the outer side in the vehicle width direction beyond the opening range of the air intake port 2 and directly above the duct portion 4b, the air intake port avoids the position directly above the duct portion 4b. While opening 2, it is possible to maintain a good-looking appearance in terms of design.
  • FIGS. 4 to 6 show another embodiment of the present invention.
  • the intake duct 6 configured in the same manner as in the case of FIGS. 2 and 3, the periphery of the air inlet 2 on the upper surface of the head portion 4a is shown. Further, as shown by an arrow A (see FIGS. 5 and 6), a drainage passage 15 is formed for receiving rainwater flowing down in the vehicle width direction and flowing down to the side of the air intake 2 as indicated by an arrow A (see FIGS. 5 and 6). Yes.
  • the drainage passage 15 is formed by a groove shape recessed in the upper surface of the head portion 4a. More specifically, the air intake port 2 is provided at the outer end in the vehicle width direction on the upper surface of the head portion 4a.
  • a drainage passage 15 is formed by forming a groove shape extending in the vehicle front-rear direction along the upper edge portion of the vehicle.
  • the duct body 4 of this type of intake duct 6 is manufactured by blow molding. What is necessary is just to shape
  • the upper surface of the head portion 4a referred to in the present invention refers to a range that can be seen when the head portion 4a is viewed from above, and particularly in this embodiment, the front and back positions of the upper surface of the head portion 4a.
  • the drainage passage 15 also extends in the inclined portion, and both sides of the air intake 2 extend obliquely downward to reach the vicinity of the lower end position of the air intake 2.
  • the intake duct 6 is configured in this way, even if the upper surface of the head portion 4a is inclined downwardly in the vehicle width direction, it is poured onto the upper surface of the head portion 4a and the vehicle width direction. Rainwater that flows outward is received by the drainage passage 15 and is washed away to the side of the air intake 2, thereby preventing a phenomenon that water drops are sucked into the intake duct 6 at the upper edge of the air intake 2. Will be.
  • the upper surface of the head portion 4a can be provided with a slope that forms a downward gradient outward in the vehicle width direction without any trouble, so that the head portion 4a of the intake duct 6 that rides on the upper surface of the cab 1 is not conspicuous.
  • the appearance of the cab 1 can be prevented from being impaired by the presence of the head portion 4a.
  • the drainage passage 15 is formed by the groove shape recessed in the upper surface of the head portion 4a. Therefore, the drainage passage 15 can be easily formed by a mold when the intake duct 6 is blow-molded. Moreover, it is possible to prevent the appearance of the drainage passage 15 that does not have a protruding portion from the appearance and is less noticeable.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

L'invention concerne un conduit d'admission d'air (6) pour admettre, sous forme d'air d'admission pour un moteur, de l'air extérieur depuis un orifice d'admission d'air (2) qui s'ouvre vers le côté externe dans le sens de la largeur du véhicule d'une section de tête (4a) montée sur la surface supérieure d'une cabine d'un véhicule, le conduit d'admission d'air étant conçu de sorte que : l'orifice d'admission d'air (2) s'ouvre de manière à éviter la zone immédiatement au-dessus d'une section de conduit (4b) qui s'étend vers le bas depuis la surface inférieure d'une section arrière de la section de tête (4a) le long de la surface arrière de la cabine ; une différence de niveau soit formée au niveau de l'extrémité arrière de l'orifice d'admission d'air (2) vers le côté interne dans le sens de la largeur du véhicule ; et une section de guidage (7) soit formée de manière à rendre la différence de niveau continue par le biais d'une surface incurvée de façon concave qui forme un arc circulaire lorsqu'elle est observée sur une vue en plan.
PCT/JP2017/005405 2016-04-19 2017-02-15 Conduit d'admission d'air Ceased WO2017183268A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201780024778.8A CN109072829A (zh) 2016-04-19 2017-02-15 吸气管道

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2016083593A JP6626776B2 (ja) 2016-04-19 2016-04-19 吸気ダクト
JP2016-083594 2016-04-19
JP2016083594A JP6689528B2 (ja) 2016-04-19 2016-04-19 吸気ダクト
JP2016-083593 2016-04-19
JP2016085689A JP6660801B2 (ja) 2016-04-22 2016-04-22 吸気ダクト
JP2016-085689 2016-04-22

Publications (1)

Publication Number Publication Date
WO2017183268A1 true WO2017183268A1 (fr) 2017-10-26

Family

ID=60116742

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/005405 Ceased WO2017183268A1 (fr) 2016-04-19 2017-02-15 Conduit d'admission d'air

Country Status (2)

Country Link
CN (1) CN109072829A (fr)
WO (1) WO2017183268A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020094535A (ja) * 2018-12-12 2020-06-18 ダイムラー・アクチェンゲゼルシャフトＤａｉｍｌｅｒ ＡＧ 吸気ダクト
USD896277S1 (en) * 2018-10-25 2020-09-15 Omix-Ada, Inc. High-mount snorkel
USD927555S1 (en) 2020-03-17 2021-08-10 Omix-Ada, Inc. Snorkel system
USD943634S1 (en) 2020-03-26 2022-02-15 Omix-Ada, Inc. Snorkel system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60139626U (ja) * 1984-02-29 1985-09-14 いすゞ自動車株式会社 車両用機関の吸気ダクト装置
JPS6364527U (fr) * 1986-10-20 1988-04-28
JPH045119U (fr) * 1990-04-27 1992-01-17
US20090101014A1 (en) * 2007-06-20 2009-04-23 Michel Baseotto Moisture separator arrangement; fluid intake for air cleaner; and,method
US20090151308A1 (en) * 2007-12-14 2009-06-18 Suk Hwan Jung Intake duct system for an engine
WO2011094334A1 (fr) * 2010-01-29 2011-08-04 Donaldson Company, Inc. Ensemble séparateur d'eau destiné à être utilisé avec des épurateurs d'air, ensemble, éléments, systèmes et procédés associés
US20150267655A1 (en) * 2012-12-06 2015-09-24 Mann+Hummel Gmbh Intake Module of an Air Intake Tract of an Internal Combustion Engine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1091641B (it) * 1977-12-30 1985-07-06 Fiat Veicoli Ind Dispositivo di presa d aria per motori a combustione interna
JP3205670B2 (ja) * 1994-09-27 2001-09-04 日野自動車株式会社 ダクトの入水防止構造
DE102008034226A1 (de) * 2008-07-23 2009-04-09 Daimler Ag Endteil eines Ansaugtraktes
CN201705509U (zh) * 2010-06-08 2011-01-12 中国重汽集团济南动力有限公司 一种进气道总成

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60139626U (ja) * 1984-02-29 1985-09-14 いすゞ自動車株式会社 車両用機関の吸気ダクト装置
JPS6364527U (fr) * 1986-10-20 1988-04-28
JPH045119U (fr) * 1990-04-27 1992-01-17
US20090101014A1 (en) * 2007-06-20 2009-04-23 Michel Baseotto Moisture separator arrangement; fluid intake for air cleaner; and,method
US20090151308A1 (en) * 2007-12-14 2009-06-18 Suk Hwan Jung Intake duct system for an engine
WO2011094334A1 (fr) * 2010-01-29 2011-08-04 Donaldson Company, Inc. Ensemble séparateur d'eau destiné à être utilisé avec des épurateurs d'air, ensemble, éléments, systèmes et procédés associés
US20150267655A1 (en) * 2012-12-06 2015-09-24 Mann+Hummel Gmbh Intake Module of an Air Intake Tract of an Internal Combustion Engine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD896277S1 (en) * 2018-10-25 2020-09-15 Omix-Ada, Inc. High-mount snorkel
JP2020094535A (ja) * 2018-12-12 2020-06-18 ダイムラー・アクチェンゲゼルシャフトＤａｉｍｌｅｒ ＡＧ 吸気ダクト
JP7224889B2 (ja) 2018-12-12 2023-02-20 ダイムラー トラック エージー 吸気ダクト、ガイド部材、車両、及び排水構造
USD927555S1 (en) 2020-03-17 2021-08-10 Omix-Ada, Inc. Snorkel system
USD943634S1 (en) 2020-03-26 2022-02-15 Omix-Ada, Inc. Snorkel system

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