DE900502C - Hollow rotary valve with manifold, especially for the exhaust of internal combustion engines - Google Patents
Hollow rotary valve with manifold, especially for the exhaust of internal combustion enginesInfo
- Publication number
- DE900502C DE900502C DEA14565A DEA0014565A DE900502C DE 900502 C DE900502 C DE 900502C DE A14565 A DEA14565 A DE A14565A DE A0014565 A DEA0014565 A DE A0014565A DE 900502 C DE900502 C DE 900502C
- Authority
- DE
- Germany
- Prior art keywords
- rotary valve
- manifold
- running body
- heat
- elbow
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
- F01L7/02—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves
- F01L7/021—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves with one rotary valve
- F01L7/024—Cylindrical valves comprising radial inlet and axial outlet or axial inlet and radial outlet
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lift Valve (AREA)
- Exhaust Silencers (AREA)
Description
Die besonders an Auslaßdrehschiebern auftretende Schwierigkeit liegt in der hohen thermischen Belastung. Diese kommt einerseits dadurch zustande, daß zeitweise ,der Drehschieber als-Abschlußorgan gegenüber dem Verbrennungsraum dient und dabei besonders von den heißen Verbrennungsgasen während des Ausdehnungshubes beaufsehlagt wird, andererseits .dadurch, .daß durch ihn die heißen Abgase während der Auslaßperiode hindurchgeleitet werden.The particular difficulty encountered with rotary outlet valves is in the high thermal load. This comes about on the one hand that at times, the rotary valve serves as a closing element in relation to the combustion chamber and especially from the hot combustion gases during the expansion stroke is acted upon, on the other hand .by, .that the hot exhaust gases during the discharge period.
Die Wärmebeaufschlagungder,Schieber ist beim Viertakt- und Zweitaktverfähren verschieden groß, weil bei jenem die gesamte Frischgasladung durch den warmen Schieber strömt und .den Schieber, unterstützt durch die Verdampfüngswärme; kühlt: Beim Zweitaktmotor .dagegen strömt, sofern es sich um die Steuerung des Auslasses handelt, -stets nur heißes Abgas ',hindurch, so daß das Kühlhalten eines Zweitakt-Auslaßdrehschiebers schwieriger ist.' Die Erfindung bezieht sich .auf einen hohlen Drehschieber mit Krümmer, besonders für den Auslaß von Brennkraftmaschinen, dessen Drehachse vorzugsweise senkrecht zur Zylinderachse steht. Die Erfindung ist gekennzeichnet durch -einen zweiteiligen Drehschieber, dessen Laufkörper aus einem Werkstoff guter Gleit- und Wärmeleitfähigkeit und dessen Krümmer vorzugsweise aus hochhitzebeständigem, Wärme schlecht leitendem Werkstoff besteht, und -durch Maßnahmen, die den Wärmefloß zwischen Laufkörper und Krümmer hemmen.The application of heat to the slide is in the four-stroke and two-stroke process different sizes, because with that the entire fresh gas charge through the warm slide flows and .the slide, supported by the heat of evaporation; cools: With the two-stroke engine .on the other hand, if it is a matter of controlling the outlet, -always only hot exhaust ', so that the cooling of a two-stroke rotary exhaust valve is more difficult. ' The invention relates .auf a hollow rotary valve with Elbow, especially for the outlet of internal combustion engines, whose axis of rotation is preferred is perpendicular to the cylinder axis. The invention is characterized by -a two-part rotary valve, the running body of which is made of a material with good sliding and sliding properties Thermal conductivity and its elbow preferably made of highly heat-resistant, heat Poorly conductive material consists, and -by measures that the heat flow between Inhibit the barrel and elbow.
Diese den Wärmefloß hemmenden Maßnahmen können darin bestehen, daß Laufkörper und Krümmer durch -Stützstege über möglichst kleine Berührungsflächen miteinander verbunden sind.These measures inhibiting the flow of heat can consist in that Running body and elbow through support webs over the smallest possible contact surfaces are connected to each other.
Diese Stege können entweder .mit dem Laufkörper oder mit :dem Krümmer. aus einem Stück bestehen. Sie können .aber auch, z. B. aus dünnwandigem Blech bestehend, besonders eingesetzt sein.These webs can either .with the barrel or with: the elbow. consist of one piece. You can .but also, e.g. B. consisting of thin-walled sheet metal, be especially used.
Nach einer weiteren Ausbildung der Erfindung kann .der Krümmer .gegen .den Laufkörper an der Durchdringungsstelle durch einen Zwischenring aus Wärme schlecht leitendem Werkstoff, z. B. Asbestschnur, abgedichtet sein.According to a further embodiment of the invention. The manifold. Against .the running body at the point of penetration due to an intermediate ring of heat is bad conductive material, e.g. B. asbestos cord, be sealed.
In Weiterausbildung der Erfindung können die Stützstege nach Art von Gebläse- oder Turbinenschaufeln ausgebildet sein.In a further development of the invention, the support webs can be like Fan or turbine blades can be formed.
Der Drehschieber gemäß .der Erfindung hat den Vorzug, daß der aus Wärme gut leitendem Werkstoff bestehende Laufkörper die auf ihn unmittelbar aus dem Verbrennungsraum -abgegebene Wärme schnell abführt und die vom Krümmer aufgenommene Wärme auf ihn nur in geringem Umfang übertragen wird, so daß der Laufkörper sich nicht verziehen kann und stets gut läuft.The rotary valve according to the invention has the advantage that the Heat-good conductive material existing running body directly on him The heat given off into the combustion chamber quickly dissipates and the heat absorbed by the manifold Heat is transferred to him only to a small extent, so that the running body cannot forgive and always runs well.
Die Zeichnung zeigt ein. Ausführungsbeispiel der Erfindung.The drawing shows a. Embodiment of the invention.
io ist der Laufkörper, der aus einem Werkstoff mit guter Gleit- und. Wärmeleitfähigkeit, z. B. Bronze, besteht. i i .ist der Auslaßkrümmer, der aus einem hochhitzebeständigen, Wärme schlecht leitenden Werkstoff, z. B. Porzellan, hergestellt ist. 12 sind die Stützstege zwischen Laufkörper io und Krümmer i i, die an möglichst kleinen Berührungsflächen 13 @äin Trümmer ii oder auch am Laufkörper io die beiden Teile gegeneinander abstützen, 14 ist ein Dichtungsring, z. B. Asbestschnur, an der Durchdrngungsstelle .des Krümmers i i, der diesen gegen den Laufkörper io abdichtet.io is the running body, which is made of a material with good sliding and. Thermal conductivity, e.g. B. bronze. i i. is the exhaust manifold, which consists of a highly heat-resistant, heat-poorly conductive material, e.g. B. porcelain is. 12 are the support webs between the running body io and manifold i i, which are as close as possible small contact surfaces 13 @ äin rubble ii or the two on the barrel body io Support parts against each other, 14 is a sealing ring, e.g. B. asbestos cord the penetration point of the manifold i i, which seals it against the running body io.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA14565A DE900502C (en) | 1951-11-25 | 1951-11-25 | Hollow rotary valve with manifold, especially for the exhaust of internal combustion engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA14565A DE900502C (en) | 1951-11-25 | 1951-11-25 | Hollow rotary valve with manifold, especially for the exhaust of internal combustion engines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE900502C true DE900502C (en) | 1953-12-28 |
Family
ID=6923233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEA14565A Expired DE900502C (en) | 1951-11-25 | 1951-11-25 | Hollow rotary valve with manifold, especially for the exhaust of internal combustion engines |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE900502C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1140406B (en) * | 1956-06-06 | 1962-11-29 | F M Aspin Engines Ltd | Hollow rotary valve with a conical base |
-
1951
- 1951-11-25 DE DEA14565A patent/DE900502C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1140406B (en) * | 1956-06-06 | 1962-11-29 | F M Aspin Engines Ltd | Hollow rotary valve with a conical base |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2940546A1 (en) | EDGE SEAL FOR A ROTARY ACCUMULATOR HEAT EXCHANGER | |
| DE2416807A1 (en) | THERMAL PROTECTION FOR A VEHICLE ACCUMULATOR | |
| DE900502C (en) | Hollow rotary valve with manifold, especially for the exhaust of internal combustion engines | |
| DE919378C (en) | Rotary ball valve for internal combustion engines | |
| DE719619C (en) | Rotary valve control for four-stroke internal combustion engines | |
| DE953753C (en) | Silencer for internal combustion engines | |
| DE102019115347A1 (en) | Flow control valve for exhaust gas recirculation | |
| DE661610C (en) | Piston seal for high-compression internal combustion engines | |
| DE883980C (en) | Device for protecting a built-in exhaust valve of internal combustion and similar engines against oil encrustation on the valve spindle | |
| DE481151C (en) | Internal combustion engine with purge air supply, in particular two-stroke glow head engine | |
| DE19712700C2 (en) | Four-stroke internal combustion engine with elliptical valve discs | |
| DE330296C (en) | Carburetor fire protection for explosion engines | |
| DE582444C (en) | Hollow valve with heat-resistant cover, especially for diesel engines | |
| DE895675C (en) | Slide control for internal combustion engines | |
| AT85677B (en) | Heat engine or thermal water lifting device. | |
| DE2660451C2 (en) | Engine design for pollution reduction | |
| DE687105C (en) | Device for cooling spherical rotary valves for controlling internal combustion engines | |
| DE2653804A1 (en) | VALVE FOR REGULATING THE FLOW OF HOT FLUIDS | |
| DE709640C (en) | Sealing of the ducting of pipelines through walls u. Like. By means of plastic masses | |
| DE532585C (en) | Seal for hot plate carburetors that are attached to an open end of an exhaust gas collection chamber | |
| DE719510C (en) | Rotary valve seal for internal combustion engines | |
| DE1526386A1 (en) | Rotary piston internal combustion engine | |
| DE906162C (en) | Switching element for hot gas | |
| DE900029C (en) | Device for heating up the suction line of internal combustion engines by means of exhaust gases | |
| AT312373B (en) | Four-valve cylinder head for air-cooled cylinders of four-stroke internal combustion engines |