EP0978647B1 - Rohluftansaugkasten für einen Dieselmotor in einem Lastkraftwagen - Google Patents
Rohluftansaugkasten für einen Dieselmotor in einem Lastkraftwagen Download PDFInfo
- Publication number
- EP0978647B1 EP0978647B1 EP99113948A EP99113948A EP0978647B1 EP 0978647 B1 EP0978647 B1 EP 0978647B1 EP 99113948 A EP99113948 A EP 99113948A EP 99113948 A EP99113948 A EP 99113948A EP 0978647 B1 EP0978647 B1 EP 0978647B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air intake
- raw
- intake box
- air
- diesel engine
- 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 - Lifetime
Links
- 238000003801 milling Methods 0.000 claims 1
- 238000013016 damping Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 230000001914 calming effect Effects 0.000 description 1
Images
Classifications
-
- 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
- F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
- F02M35/10013—Means upstream of the air filter; Connection to the ambient air
-
- 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
- F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
- F02M35/1205—Flow throttling or guiding
- F02M35/1216—Flow throttling or guiding by using a plurality of holes, slits, protrusions, perforations, ribs or the like; Surface structures; Turbulence generators
-
- 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
- F02M35/14—Combined air cleaners and silencers
-
- 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
- F02M35/164—Heavy duty vehicles, e.g. trucks, trains, agricultural or construction machines
Definitions
- the invention relates to a raw air intake box according to the preamble of the claim 1.
- An air intake box of this type is known from DE 39 42 595 A1.
- This raw air intake box is a reflection damper with appropriate air guiding devices in the interior and has a side inlet opening for the raw air.
- Another raw air intake box is known from DE 42 05 425 A1, the one modified version of the air intake box of DE 39 42 595 A1.
- the object of the invention is to provide a structure that is simple yet acoustic to represent effective raw air intake box.
- the pulsation of the intake air is reduced because of the perforated A uniform supply air area can enter, which is the pressure difference in the intake box reduced.
- the muzzle sound that comes from the side suction opening emerges is reduced.
- the energy content of the intake air vibrations is also reduced, whereby the walls of the raw air intake box are less excited to vibrate and thus emit less sound to the outside.
- the nubbed and perforated surface or only the perforated surface Surface has a vibration-damping effect.
- a cyclone separator If a cyclone separator is provided, it can pass through the side opening to be built in. The partial surface is then a nubbed, closed surface.
- FIG. 1 shows the arrangement 10 of the unfiltered air intake box 11 with the unfiltered air intake opening 16 and the side 12 facing the rear wall of the cab, on which the partial surface 13 is located.
- the partial surface 13 has a perforated surface 14 (see FIG. 2), through which part of the untreated air is sucked in, and a nubbed, closed surface 15 (see FIG. 2).
- the perforated surface 14 can also extend over the entire partial surface 13. If a cyclone separator is used, it is inserted through the. The suction then takes place only via the raw air suction opening 16 and the partial surface 13 is then only a nubbed surface 15.
- Air inlet grille 16 ' Air inlet grille 16 '
- a rubber bellows connects to the air outlet connection 17, by means of which and of an adapter piece the intake air is directed to the air filter.
- FIG. 2 shows view II from FIG. 1.
- the partial surface 13 has a perforated surface 14 and a knobbed surface 15.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cyclones (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Description
- Fig. 1
- eine Seitenansicht und
- Fig. 2
- die Ansicht in Richtung II aus der Fig. 1.
Lufteintrittsgitter 16'
Claims (3)
- Rohluftansaugkasten für einen Dieselmotor in einem Lastkraftwagen mit Fahrerhaus, wobei der Rohluftansaugkasten an der Fahrerhausrückwand befestigt ist, dadurch gekennzeichnet, daß auf der der Fahrerhausrückwand (18) zugewandten Seite (12) eine Teilfläche (13) angeordnet ist, die aus einer genoppten (15) und einer perforierten Fläche (14) oder nur aus einer perforierten Fläche (14) besteht, über die, zusätzlich zur Rohluftansaugöffnung (16) seitlich des Rohluftansaugkastens (11), Rohluft angesaugt wird.
- Rohluftansaugkasten nach Anspruch 1, dadurch gekennzeichnet, daß in die Rohluftansaugöffnung (16) ein Zyklonabscheider einsetzbar ist und dann die Teilfläche (13) nur genoppt (15) ist.
- Rohluftansaugkasten nach Anspruch 1, dadurch gekennzeichnet, daß die perforierte Fläche (14) der Teilfläche (13) durch Abtragen, z. B. Abfräsen des oberen Teiles der Noppenkegel der genoppten Fläche (15) erreicht wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19835105 | 1998-08-04 | ||
DE19835105A DE19835105A1 (de) | 1998-08-04 | 1998-08-04 | Rohluftansaugkasten für einen Dieselmotor in einem Lastkraftwagen |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0978647A2 EP0978647A2 (de) | 2000-02-09 |
EP0978647A3 EP0978647A3 (de) | 2000-08-30 |
EP0978647B1 true EP0978647B1 (de) | 2003-12-10 |
Family
ID=7876361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99113948A Expired - Lifetime EP0978647B1 (de) | 1998-08-04 | 1999-07-17 | Rohluftansaugkasten für einen Dieselmotor in einem Lastkraftwagen |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0978647B1 (de) |
DE (2) | DE19835105A1 (de) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2938454C2 (de) * | 1979-09-22 | 1983-05-11 | Daimler-Benz Ag, 7000 Stuttgart | Luftansaugvorrichtung für eine Brennkraftmaschine |
DE3905894A1 (de) * | 1988-04-16 | 1989-10-26 | Hengst Walter Gmbh & Co Kg | Zyklon-vorabscheider |
DE3836166A1 (de) * | 1988-10-24 | 1990-04-26 | Iveco Magirus | Luftansaugvorrichtung fuer eine brennkraftmaschine |
DE3942595A1 (de) | 1989-12-22 | 1991-06-27 | Iveco Magirus | Luftansaugvorrichtung fuer eine brennkraftmaschine |
DE4205425A1 (de) | 1991-11-02 | 1993-05-06 | Iveco Magirus Ag, 7900 Ulm, De | Luftansaugvorrichtung fuer eine brennkraftmaschine |
-
1998
- 1998-08-04 DE DE19835105A patent/DE19835105A1/de not_active Withdrawn
-
1999
- 1999-07-17 EP EP99113948A patent/EP0978647B1/de not_active Expired - Lifetime
- 1999-07-17 DE DE59907996T patent/DE59907996D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0978647A3 (de) | 2000-08-30 |
EP0978647A2 (de) | 2000-02-09 |
DE19835105A1 (de) | 2000-02-10 |
DE59907996D1 (de) | 2004-01-22 |
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