DE1985448U - CARBURETTORS FOR COMBUSTION MACHINERY. - Google Patents

Description

werke Aktiengesellschaft. 7107 Neckar- '"■ J. DO -1 /

sulm. I carburetor for internal combustion engine- "',

ncn. July 22, 67. N 2593. (T. 4; line 1) _ /

SSU XOTOEENWERKE AKTIENGESELLSCEIFT, Neokarsulm / lOrtt. Carburetors for internal combustion engines

The invention relates to a carburetor for a Fahraeug internal combustion engine old of an idle ban la pushing operation

In idle mode, internal combustion engines and especially tend to be soloh · Bauarten »which have a large overlap of tax records exhibit, dam «shorter or longer at regular intervals Ignition series which accelerate and retard the motor vehicle in a jerky manner and thereby avoid the so-called stigma " call forth a nice appearance.

To remedy these Haohteile it is known "a tob vacuum la suction pipe controlled Varaohlußeinriohtung in the idling force" stoffBuführungslaitung Torsoiaehen · This causes ,, that closed throttle and a Drshsahl _f which is higher than the set idle Drehaahl "the Brennstofiaufuhr gan «Is switched off» so that no ignitions generally take place · The disadvantage here is »that the carburettor dries out · If the fuel supply is now opened again when the set idle speed is reached or when the engine is accelerated, a relatively long time elapses until the carburetor works properly again and is able to »ensure an even fuel-air oemisohm. · This method is not suitable for internal combustion engines with oemisohmierang» because the lubrication is interrupted when the fuel supply is switched off

The invention has set itself the task of "the mentioned parts remove su and create a carburetor »which eliminates the soaks« ruokeln »but when the set idle speed is reached or when accelerating immediately works flawlessly and in internal combustion engines with mixture control also during dea

werke Aktiengesellschaft. 7107 Neckar- luJ. DO *

sulm. I carburetor for internal combustion engine- "■ *

- 2 - n. 22. 7. 67. K 2 0 393. ( T. 4 Z 1) ^V -

3o hiebebetrisbs sit increased revolutions a lubrication guaranteed · This task · is according to the invention yellowed by the fact that in the idle Krafiatoffleitung dea Tergaaera ^ in the shut-off valve rorgeaehen »the hai geaehloaene * DroeaalklAppa and aa-f above the idle rotation there is internal combustion powera &sen; Only one tail of the Learlauf fuel consumption can be avoided *. On dieaa leiae is erreioht * that more than is idle drehaahl: forms, i Sohiabadrehsahl # n no "üadfahigee Oaaiaoh ^

so that the boiling didn’t occur »· different · * · ' ^:: •• ii» row the duro-pouring fuel oil · out of the carburetor I keep the carburettor benetsit and, if the fuel is burned out, the booming is maintained »,' ν

The AbaohaltTentil lat Toraugswelae AIa solenoid valve is formed and can depending on vofc negative pressure la intake manifold, or "depending from the Droesel flap position and the speed or a lathe-dependent size such as KQhlwaeserdruok or oil pressure to be operated "

Since · AbaohaItTent11 let Yorsugaweiee be arranged in a branch of their own that avoids the idle power line. In order to enable an exact setting of the fuel quantity that can be kept, a separate input must be provided in the branch line mentioned.

A Auaführungabeiapiel the invention is explained näher- anhaid> below the Zeiohnung in which a part is shown dea erfindungegemäßen carburetor Ib ^s ohnitt ·:

The carburetor shown is a two-stage Hegister carburetor. The suction pipe of the first stage is old 1 and has the Ubliohen diffuser 2 and the throttle valve 3 on. The suction pipe of the The wide stage is denoted by 4 · Ee contains a throttle valve S near the connection of the carburetor to the working area of the internal combustion engine » An idle air line 6 is provided in the carburettor, which has a Lufttr ^ guliersohraube 7 and duroh one

-J-

Bohrusg θ with the Sangrohr 1 close to the throttle valve y r connected let »The line 6 is also continued in a pipe 6 * which opens downstream into the intake manifold 1 · The fuel for idling operation is led through a line $ , the duroh a hole 9 * bit is in the suction pipe 1 in the discharge "and sound of a branch line 10 branches in which a racking pipe 11 and an AbsohaltTentil 12 are arranged · Si" line 10 opens downstream of the mouth of the air line 9 * in the suction pipe

In normal idle operation the AbsohaltTentil 1 & is open and the fuel required for idling arrives duroh dij ^ B ^ hrune 9 * and the line 10 into the suction pipe 1 and forms "ueammett / iitt the air through the lines 6 and 6 * sugefuhrten a Bundfahigea Oemisöh, with the total amount of fuel for idling by which the Reguliersohxaube 13 is adjusted

In overrun mode, that is, with the throttle valve 3 closed, after a speed above the idle speed has been reached, the stop valve 12 is closed, causing the fuel supply to be interrupted by the line 10. The fuel that is now only fed through the bore 9 ¹ is not sufficient to form an ignitable Qemisoh with the supplied air.But however, it is sufficient to keep the idling system moist and to maintain lubrication of the internal combustion engine, if this works with fabric & sole resistance »

- aeansproho -

Claims (1)

46cl, 31. 1985 448. NSU Motoren- IRT werke Aktiengesellschaft. 7107 Neckar- 'u T-sulm. I carburettors for internal combustion engines. 22. 7. 67. N 20 393. (T. 4; line 1) claims 1. Carburetor for Fahraeug-Brennkraftaaechinen Kit a cut-off valve in an idle fuel line that is closed when a throttle valve and one above the set idle speed lying machine speed is operated, characterized in that the shut-off valve (12) only part of the idle fuel supply turns off. 2 · Carburetor according to claim 1, characterized in that the Shut-off valve (12) in one of swei of the idle fuel Sufführung (9) outgoing, in the suction tube (1) flush ends Lines (9 '»10) is arranged. 3 »Carburetor according to claim 2, characterized in that the the line (1O) containing the cut-off valve (12) near the mouth of the intake manifold (1) in the working cylinder of the internal combustion engine sins in the suction pipe (1). 4 · Carburettor according to claim 3 »characterized in that a separate idle air line (6 *) for the shut-off valve (12) containing fuel line (1O) is provided, the upstream course before the mouth of this line (1O) In the suction tube (1) joins.