DE1900418U - DAMPER FILTER, IN PARTICULAR FOR A COMBUSTION ENGINE. - Google Patents

Description

YES. 5268211 25.7.64

KNECHT company
, with limited liability

7 Stuttgart-Bad Cannstatt
Haldenstrasse 48

rt especially for a Internal combustion engine "

The invention relates to a particularly gentle Därupf filter with a filter chamber and an air conduit pipe, which extends _{from this 9} to a supply connection, and has an inside

Damper chamber hourly oscillation — compensation tube eye—

is arranged ». , ■ "

■ i ■
As known damper filters, the air pipe is "mostly designed like a diffuser" and in front of this diffuser-like section a connection to a damper chamber is created through a pipe elbow or an opening. Vibrations of the air column in the intake system of the internal combustion engine therefore act over a large area Air pipe and has only been compensated to an unsatisfactory degree »* ■ ._" - ..

It is also in a knee-like bent Luf tleitungsrolir known _9-a SchwinsTuigs A.usgieichsstutsen near the transit "dringungsstelie the air conduit through the ¥ and the Dämpferkamnier vorstiseheai" This is the vibration training '■ - equal to lop rechtwiziklig ζητ axis of " P.ohx-abselinitts connected to the carburettor, and its mouth is therefore directly acted upon by süiröcl £ ö: trömendeii, Xiift .iiioht. · ₆

The invention is based on the object, by means of a special assignment of the saving compensation tube and the air discharge tube, a variation in the performance of the machine equipped with the damping filter, in particular an internal combustion engine, in the case of a ¹ economically dividing out simple construction to achieve.

This object is achieved according to the invention in that a pipe belonging to the air supply system and not directly connected to the gas circuit has an orifice that is approximately in the axial direction of the carburetor connection and is directed towards the carburetor connection, and that the projections of the orifices of the The air-conveying pipes are in the cross-section near the carburetor connection _e

Due to the arrangement of the mouth of the vibration compensation

"3"

pipe about in the axial direction of the carburetor succeeded Short path parts of vibration processes in the intake system Back tr ömgases originating from the internal combustion engine into the Schvingungs compensation tube «This results in A significant improvement in the efficiency of the machine. ■

In one embodiment of the invention, this is immediate with the carburetor connection and removed from it via a Vibration compensation sleeves. with a damper kacimer ver ^ bundorißj £ 5 L-afilleitungsrohr widening like a diffuser through a partition into a clean air pipe imd am vibrations The equalizing pipe is subdivided, and the partition wall is provided with a clean air duct pointing to the carburetor connection »

The invention provides that .that the vibration compensation pipe, which from the diffuser-like.widening air conduit pipe ". · • opens into the damping device, is arranged in an arched pipe valve of the air flow direction> Iires the vibration compensation tube have a tube extension extending into the damper chamber and approximately in the same direction as the air duct, _{and the like}

In Einei * abgev / andelton embodiment of the invention of up diffuser-like enlarging the air conduit in the upper part is attached to a partition wall of the conical pipe section inside j eixx Sohwingungs equalizing pipe forms _e its open end in · opens the elbow portion of the Luftieitungsrohres "and the air conduit comprises in the area of the closed end of the oscillation compensation pipe an opening leading to the damper kainner «

In the embodiment of a damper erfindungsgeisäßen a filter Durchwirbeiung and mixing is _ä particularly greatly limited the sum-gasifier flowing intake air and the air flowing back in the region of the damper filter

whow. the separation is performed by Luftieitungsrohr and balance tube very far "Sch-wingungsvorgänge the intake system of an Brennkraftraasehinö are mostly in untoren thirds of the speed range expected co»

Man. achieves that a current is formed in which the air brought in via the air duct mainly, along the wall of the air duct the carburetor streamed

In the case of vibrations in the intake air, the return: flowing flow core on kui-zeni ways to the mouth of the oscillation compensation tube and can there at least su © part to be included »At ^ xjaralleleia course of . Luftleitungsrolir and Scirwincuiigs-Äus ^ -löiehsrohr can to form currents lying one above the other.

; Various' damper filters are shown as exemplary embodiments in the drawing of the subject matter of the invention sciioroatical. ' illustrated «Es seigon

ι ■

Fig. 1 shows a first Ausfülrrungsbeispiel in side view and in partial section _s .

Fig, Z is a plan view of the first Ausfüiirungsböbeispiel, "'intake ports not shown "

Fig. 3 is a Querscimitt by line A ^ B in Figo 2 _e

Fig. 4, for example a longitudinal section through the second exemplary _s

5 shows a plan view of the second exemplary embodiment,

6 shows a longitudinal section through the third embodiment

■ - 5 -

Pig "7 a cross-section along the line C ~ D in Pig" 6 ₅

& and
Fig. 8 is a plan view of the third. Embodiment ₍

For example, in the first embodiment according to Fig. 1 to 3, two suction nozzles 2 are connected to a Pilterkajnmar 1 1 and the Däinpferkammer k , a vibration compensation tube (not shown) can be provided «

A diffuser-like widening air conduit pipe 7 is connected to the pipe section 5 via a pipe bend 6 , which extends in a steam chamber 8 orGtrockt ₉ v / oboi dor pipe bend part 9 ax its end from the Däsipferkamnior 8 iioraus-'projects and a gasifier connection £ 1 forms *

The pipe piece 5 s> d- ^he Hohrbogen 6 and / or the air conduit 7 are divided by a partition 10 into a clean air tube 11 and a oscillations / junes-off ^ loichsrohr 12 of approximately semi-circular cross-section

In the axial direction dos Vergasoranschlusses at the end of the partition wall 10 is a clean air outlet 13 installed _s whose center line 21 susaiaBienfälltο At the Luftleituixgsrohr 7 is approximately with the center line of the Vergaseranechlusses in the range of the vibration compensation tube 12 and opposite .to clean air support 13 ei "in di © Vapors rkainraor 8 outgoing vibration compensation stutaert Ik vorgaseilen.

The first Ausführungsbeispiei is particularly for two-stroke Brennlcraftmaschinen with two! and three cylinders as well as for Two-Aylinder four-stroke Brenxxkraftraaschinen provided. Head

Basically in the lower third of the Drehsahlboroick, jerk traps form as a result of the "vibrations, in the intake system of the internal combustion engine, diosc air currents run ahead and pass from the carburettor into the air pipe 7 mainly along the walls of the hound section and arrive without "significant disturbance of the air core of the clean air stream flowing in the direction of the carburettor into the semicircular oscillation compensation pipe 12, through which you can reach the filter chamber 1 separately from the air stream" branched off »Boira first embodiment can be a

early separation of two opposing Strönrun

gen without much noticeable disturbances of the suction intake of clean air to take place. "

In a modification of the first, Ausführungsforra, the partition 10 tloitungsrohres just inside the Luf be provided 7 and about in the area of the transition between deia Luftleitungsr-ear 7 ~ and-CTEIA -. Elbows 6 Gndcv <> It is possible _P the The end of the partition located near the transition is straight. to be formed or to be bent to the clean air pipe 11 or to the Schwin-'gvuigs compensating pipe 12.

The first embodiment can also be modified in this regard -that the more or less long partition wall up to about sur the middle of the pipe bend part 9, and ends there leaving open mouths on both sides. The carburetor connection then lies the end of the two roughly equal sections 'split air duct 7 opposite »

In the second embodiment according to FIGS. 4 to 6, parts of the same design are provided with the same reference numerals. A visual vibration compensation pipe 20 arranged in the axial direction of the carburetor connection penetrates the pipe bend part 9 and, in the example shown, is brought up to close to the carburetor connection 21 »

The Schwiiigungs-compensating tube 20 is through a. angled pipe extension complements _δ which opens into the steamer Erlcara beer S and extends in this «,

In this configuration, mainly ont-

the —wall of the hior — only forming an ilin air tube ''? Air conduit pipe j> 7 a flow from ₉ which is influenced by the vibration compensation pipe 20 only in the region of the curved pipe parts 9 at the end. As a result of the short distance between the mouth of the vibration compensation pipe 20 and its connection on the air line pipe 7, air flowing back in the combi-area gets as short as possible via the vibration compensation pipe 20 and its angled pipe extension 22 into the damper assembly 8. This improves the performance Gex ^ noise reduction achieved.

In changing the awoiton execution horn, the Schv / in-, The gunga compensating pipe 20 is only attached to the pipe bend part 9 be able to protrude into the air duct 7 anyway »

As shown in FIGS. 6 to 5, a third one can be used Embodiment instead of the vibration compensation tube and the pipe extension 22 have a partition wall 26 which is attached in the upper part of the air duct pipe, designated here by 25, and which acts as a Schwiiigungs-Ausgieichsrohr Acting chamber 27 separates »This Kamuier is about a Elongated hole 2S in the air line pipe 25 ßiit the Diinpf ericanimer 8 connected, which according to the damper cansrn. S of the first and second embodiment is designed »

The elbow portion 9 ^ -nd the diffuser-like portion of the Luftleituagsrohros 25 may be separately prepared ₅ wherein · the Tronnwand 26 is mounted extending in your diffuser-type section. The end of the partition 26 emerging from this section can be inserted into the

Pipe bend part 9 protrude, from. this is attached to the diffuser-like section.

The partition wall 10 of the first embodiment can at least one connection opening between the clean air pipe 11 and the vibration compensation tube 12 » In the sexual embodiment it is possible to use the vibration compensation tube 20 with a larger transverse clixiitt ' train as the pipe extension 22, so that two

cylindrical sections, with different diameters successive.

Claims (1)

Protection claims see 1 « _{Damping filter s} especially for internal combustion engines, lait a filter chamber and an air duct, which is paid out from this and which leads to a gas connection, to which a tube _opening into a Danpforkanuner is arranged. £ st _p dadui-ch marked that a SUKl Luf tleituii2, "SS3 ^r stGin belonging to the carburetor connection (2l) not directly connected lionr (l3s 2O ₈ 27) © ine approximately in the axial direction of the carburetor connection - has an outlet facing the carburettor, and. • daj2 the projections dex- mouths äoz · air-demanding. ^. · Pipes in the cross-section area of the Vorgasoranschlussee lie" ' ·'· ..2-e- Däinpi'e ^ rfil'Ter'närcß'iSsx ^ riJch I ₉ characterized that the .immediately rait the carburetor connection 21 xxziCL away from this via a vibration compensation ^{pipe - (l ^ ·) 2} ^ i * cinar DäiapierkaKiraer (S) connected, diffuser-like: widening air pipe (7) through a partition ( lo) divided into a clean air pipe (11) and a vibration compensation ear (12 ') ... and the partition is provided with a clean air nozzle (13) pointing towards the suns gasifier connection (21) »■, : 3 »bcijnprerfilter according to claim 1, characterized in that, that the air duct widening like dom diffusox * , tube (7) in the damper caouier (8) opening shrinkage compensation tube (20; in a: pipe bend part {9) arranged ■ is. 4 * Dainpferfiltor according to claim 3 «thereby cekoiinzoiohnot, that the vibration compensation device is integrated into the - 10 - - ΙΟ ' Pt inlet orkai'imer (8) extending into and to the air duct (7) approximately rectified pipe extension (22) having*' Damper filter after. Claim I ₀ characterized _ö that inside the. diffuser-like enlarging air is mounted conduit (25) in the upper Toil of the conical pipe section verlaufendem a 'partition (26). which forms a Schxtfingungs-Ausgieichsrohr, the open end of the pipe boron part (9) of the air duct pipe (~ 3) and that this, in the area of the closed end of the oscillation compensation (27) an opening leading to the DaniprQX-kairimojr (δ) (28) noticed «