DE7036376U - DEVICE FOR CLEANING LEAK GAS FROM COMBUSTION MACHINERY. - Google Patents

Description

Means for cleaning leakage gas from motor vehicle engines

The invention "relates to a method of cleaning Leak gas from motor vehicle engines or the like.

In the common gasoline or diesel engines for motor vehicles is made from the cylinder head cover or the crankcase escaping blow-through or leakage gas is fed back to the cylinder or cylinders for combustion. The to this Conventional devices do not allow the leakage gas to be completely cleaned of foreign substances such as moisture, unburned oil, dust and the like. More.

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At. prolonged use of the usual air purification equipment their ability to settle for the leakage gas decreases as well the suction force of the carburetor. This results in a deterioration in the carburetor line with a corresponding drop in performance of the motor.

In other common motor vehicle engines, the leakage gas is disadvantageously released into the open atmosphere via a ventilator emitted and thus contributes significantly to air pollution at.

The invention is intended to address the stated disadvantages of reducing engine performance with recirculation of leakage gas and air pollution avoid venting the leak gas into the atmosphere and create a process by which contaminants such as moisture, unburned gas, oil and dust with maximum effectiveness from the leakage gas leaving the engine are removable.

A method of the type mentioned at the outset is according to the invention designed in such a way that it comes from a prime mover Leak gas leaking from combustion to remove moisture contained therein, unburned oil, dust and the like. Adiabatically is relaxed and that the gas purified in this way for post-combustion is returned to the prime mover.

In a particular embodiment of the method according to the invention there is a suitable point for sucking off gas leaking from the machine by means of a vacuum device provided return line formed a separation chamber, whose cross-center area is greater than that of the return line.

The chamber is designed so that the inflowing leakage gas is expanded therein while cooling, so that contained therein Moisture condenses. Foreign substances contained in the gas, such as unburned oil particles or dust particles, are then bound in the condensed moisture or absorbed by it, whereupon the condensate flows off in the form of water droplets and the gas leaves the chamber in a cleaned state.

According to another feature of the invention, the leaking gas is' sucked by the negative pressure of the combustion air intake devices or the like. The engine in a return line and in a separation chamber formed in the latter to remove foreign substances such as moisture, unburned system oil. Dust and the like. Adiabatiseh relaxed, whereupon the cleaned of the foreign matter and predominantly carbon monoxide gas containing gas is returned to the machine and burned in it. By the post of the next carbon monoxide gas still containing hydrocarbons leak gas after purifying it of foreign matter which occurs during discharging unpurified gas leak danger of air pollution is largely preventable.

Further features, details and advantages of the invention emerge from the following description of exemplary embodiments based on the drawing. In this isti

Fig. 1 is a vertical sectional view of a diesel engine, in which the method according to the invention is applied,

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Flg. 2 an enlarged view in vertical section of a device according to the invention in Fox> a Kesser sur adiabatic relaxation,

3 shows an enlarged view in vertical section of a further embodiment of a device for cleaning leakage gas,

Flg. 4 a horizontal section through the "chamber according to FIG. 2 for adiabatic relaxation and

5 shows a front view of a device according to the invention in a chamber for adiabatic relaxation usable sieve part.

In the arrangement shown are pliable and heat-resistant as well chemical-resistant line parts 1 and 2 to the air intake opening S of a vehicle diesel engine and, on the other hand, to the 3-cylinder head cover H above the cylinder block C and / or to the Crankcase R under increased pressure is connected. In the line formed in this way, 1 is between the line parts and 2, a housing B is arranged. This housing B forms a separation chamber 3 for the leakage gas and has a larger one Cross-section as the line parts 1, 2. The line parts 1.2 open in mutual axial alignment on two sides of the chamber 3. In the opening 4- of the line part 1 is a sieve part 5 arranged essentially vertically.

Approximately in the middle of the chamber 3, a bowl-shaped baffle plate consisting of heat and chemical resistant material is arranged vertically ₅ so that its concave side faces the sieve part 5 at a suitable distance. Opposite the convex rear side of the baffle plate 6 is the suction opening 8 of the line part 2.

In the case of a gasoline engine, the suction line 2 can be used for recirculation of the gas in the engine to an intake manifold and the pipe part 1 for sucking off the leakage gases from the crankcase and / or the cylinder head cover at these points and for supplying them the, leakage gases in the separation chamber 3 connected to this be.

At the lower end of the baffle plate 6, a drain pipe 9 is attached. Around this runs a guide plate 11 with a Drip opening 10 for the passage of liquid condensate from the chamber 3 · Below the guide plate 11 is a collecting vessel 12 for the liquid condensate, with a drain valve 13 for the collected liquid and one in certain Height attached overflow pipe 14- arranged. The overflow pipe 14 is provided with a valve I5, through which the liquid can flow through it if necessary.

In the upper partition wall of the chamber 3, a removable and closable cover 16 is provided which enables access to the chamber 3 for the purpose of cleaning the same or the sieve part 5.

A separating device 1 / can also be removed from the line part 1 attached. This is used to separate solids from the leakage gas Y flowing in the line part 1;

In the embodiment shown in Fig. 3, the drainage pipe is 9 with at least one passage opening 19 for draining of liquid collected in the chamber 3. At the In this embodiment, a flexible hose 20 is connected to the lower end of the socket 9, the lower end 21 of which is in the Upper part of a condensate collecting vessel 22 opens. The collecting vessel 22 can be arranged at any point. At the bottom Part of one of the side walls of the Saimael vessel 22 is a Drain valve 23 and at a certain height with respect to the Collection vessel an overflow line 24 with an automatic Overflow valve 25 is provided.

When using the method according to the invention in one Motor vehicle, the device is expediently installed at a point in front of the radiator, so that it can be used when the vehicle is moving is cooled by the airstream flowing in from the outside and by the cooling air sucked in by the cooling fan. The one with it achievable acceleration of the gas leakage cooling improved additionally the cleaning effect due to the adiabatic Relaxation of the leakage gas.

stationary engines, the cleaning equipment for the The method according to the invention expediently by means of an air or Water cooling system cooled for an increased cleaning performance to obtain.

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Thus, the invention provides a method "in which one Engine leaked gases into thei? · Through the sieve part 5 and the baffle plate 6 expand in the chamber 3 "limited space, whereby the moisture contained in the gases condenses into water droplets due to the temperature drop and in foreign substances contained in the gases such as unburned oil, dust particles and the like. More of the water droplets are absorbed or bound by them and as condensate liquid are deposited while / that consists essentially of hydrocarbons Purified leakage gas composed of carbon monoxide gas is returned to the engine for post-combustion will.

Since the blow-through or leakage gas exiting from the engine is not directly at any point, but at most after it has occurred Purification is emitted into the atmosphere, is any air pollution with the method according to the invention avoided by leakage gases. In this sense, the invention creates significant advantages for the operation of internal combustion engines.

Claims (2)

■ ('■■■ PATENT ADVOCATES A. GRÜNECKER DPI - * » H. KINKELDEY «ΜΙ W. STOCKMAIF! «-NS AaEICALTCO * K. SCHUMANN Often HSl NAT. · OR - mvS P. H. JAKOB □ n _- «s p. DR free of NAT ■ MUNICH E. K. WEIL LINDAU 8 MUNICH 22 MAXIMIL1ANSTRASSE 43 G 70 363 76.7 December 16, 1974- PH 355Ο - 32 / rei Katashi AOI Protection claims Device for .Reinigen gas leakage from internal combustion engines ^ where <3.as leaking gas from the internal combustion engine to remove impurities contained therein, such as liquid, unburned oil, dust and the like., Is relaxed in an expansion chamber, with one in the expansion chamber opening exhaust gas supply line, a sieve arranged at the mouth of the exhaust gas supply line, a discharge line leading away from the expansion chamber for the cleaned gas and an Aualaßleitun ^ for discharging the separated impurities from the ^ ntspannunpskanmer, characterized in that inside the expansion chamber ^ 3) ^e i ⁿ Sciiale-shaped baffle plate (ό) is arranged, the concave line of the sieve ( ^: >) facing and running at a distance from it and the convex side of which the ivinaunp (ΰ) of the discharge line ^ · {2) at a distance [e 2. Device according to .ansprach 1, characterized in that ^r i is attached to the lower ^ nde ces baffle plate ' _v c) the Λ \ ιε1 ar.:leitung {' ■ /) . TlLlFON (OM) HNM TBLBXOa-OVMO 7036378