US1791824A - Cylinder of internal-combustion engines - Google Patents
Cylinder of internal-combustion engines Download PDFInfo
- Publication number
- US1791824A US1791824A US336239A US33623929A US1791824A US 1791824 A US1791824 A US 1791824A US 336239 A US336239 A US 336239A US 33623929 A US33623929 A US 33623929A US 1791824 A US1791824 A US 1791824A
- Authority
- US
- United States
- Prior art keywords
- cylinder
- crank case
- internal
- cooling
- combustion engines
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/02—Cylinders; Cylinder heads having cooling means
- F02F1/10—Cylinders; Cylinder heads having cooling means for liquid cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
Definitions
- My invention relates to acylinder for intermal-combustion' engines especially for twostrokecycleengines with the crank case used as a scavenging pump.
- the cylinder cooling jacket is commonly provided, as shown in Figure 4 of the accompanying drawing, so as to run parallel with the cylinder wall and to ⁇ terminate at the lower. end of the cylinder, the wall of the crank case extending from there obliquely outwardsl and downwards.
- the crank case serves Aas an air pump.
- air inlets and exhaust opening are situated in different planes so that said surfaceshave to Furthermore, the bevelled surface of the cylinder requires a relatively large amount of work in treating or finishing it, for example in painting it.
- VVFig. 3 is a horizontalsection through 3 3 ⁇ Vin-Fig. 2.
- Fig. 4 is a horizontalsection through 3 3 ⁇ Vin-Fig. 2.
- the cylinder cooling jacketgm is'parallel tothe cylinder -wall-itl and terminates at the lower end Voiof the cylinobtained.
- thermore as shown by acompa-risonbe tweenV j Figs 2 and- 4, .a-strong and pleasingV form,v j
- An internal combustion engine working on' the' two-stroke vcycle comprising invcombin'ation'a cylinder, a crank casehaving its upv per part in one piece with thecylinder andthe j said crank casebeing intended to Ybe used as a 'scavengingpunip, a cylinder cooling vjacket having an outer wall'bounded by a surface ⁇ generated' by av Ystraight, line Vrunning "from f f5 the upper cylinder edgen tangentially to' the outline of the crank case and :moving ⁇ round the cylinder, an air'inlet in said crank case,
Description
Feb 10, 1931. E. MANDLER CYLINDER OF INTERNAL COMBUSTION ENGINES so i929 Filed Jan.
Ta/Q
WedndV/@V V/NWEN Patented Feb. r1,0, A1931 Sams " EUGNN MANDLER, on VIENNA;v AUSTRIA, AssiGNon To v'rianrinia cniilrnxfirroaon-r l PATENT*OFFICE ENwEnKn UND sQHiriiswnn-FT LrNzfA. ef., or VIENNA, Austern j ,4
CYLINDER or iNtenn-NAL-ooianUsufIoN nNGrNnsf Application flied January so, 1929, seriai Nonsense,- ana in Austria-November 7, 1928;
My invention relates to acylinder for intermal-combustion' engines especially for twostrokecycleengines with the crank case used as a scavenging pump. In such engines the cylinder cooling jacket is commonly provided, as shown in Figure 4 of the accompanying drawing, so as to run parallel with the cylinder wall and to `terminate at the lower. end of the cylinder, the wall of the crank case extending from there obliquely outwardsl and downwards. In this case, only the cylinder can be cooled, whereas the cooling of the crank case cannot be obtained, this cooling being very important for the suction work of the engine, since the crank case serves Aas an air pump. Furthermore in the struction above given, thejoint surfaces ofthe various open- Y ings on the side walls, siicli as cleaning holes,
:'example.. Figs. l and show' cylinder -be machined separately.
air inlets and exhaust opening, are situated in different planes so that said surfaceshave to Furthermore, the bevelled surface of the cylinder requires a relatively large amount of work in treating or finishing it, for example in painting it.
The main obj ect of my invention. therefore, f
is to avoid the above drawbacks by forming the cylinder cooling acket by rectilinear gen- 'f eratrices running from the periphery ofthe Y, upper cylinder flange tangentially to the outline of the crank case. By this .means a very effective cooling of the upper portionof'the crank case as well as of the scavenging air channel and the air inlets, will. be obtained,
'asl the coolingspace extends furtherdownwards; The substantially rectilinear surface of the cylinder` obtained byfthis arrangement,
enables the several joint surfaceslocated on the sides of the cylinder to lie-simultaneously tooled or finished, so as to eiiect a considerable reduction of the cost of production. f Y.
Further objects ofliny invention will appear from the following-detaileddescription.
. In Figures g1, 2 andB of theaccoinpany- Vlng drawings one form of construction of the l n VTheVV Clingwwater pipes, are usuallygc'on;
nected tof a flange onV thecylinder, 'sucliasfgv k,-Fig.-4, and locatedoutsidethe cylinder,
present invenaion isV represented by way of formed according to the invention, in longi tudinal and cross section. VVFig. 3 is a horizontalsection through 3 3 `Vin-Fig. 2. Fig. 4
`(Fig: 4). It is-,furtheran object ofgthejlin'- jvention to :provide ,thev connecting flanges z' ofthe cylinder within the limits ofthegtwo planes containingfthe.,above-mentioned.joint surfaces-sothat the tools'workingtl'iese.sur-:
ofthe kusual `formf.- e a According4 to Figa/4, 'the cylinder cooling jacketgm is'parallel tothe cylinder -wall-itl and terminates at the lower end Voiof the cylinobtained. .Furthermore ,thel scavenging fair channel dis surrounded by the cooling water notonly on' its :narrow lateral faces, butalso V.on its rear side e.' 'The joint surfaces ofthe cleaningholes c, the air'inlets b Vandthe-ex-` haus'topeningV r are situated" in Vcommon i Yrepresents a cross section through a cylinder vno Y Y.It will be seenthat by the vsaid .pockets l Vvery effective cooling ofthe. air inlets -Zivis! f A planes fso as ,to be, simultaneously tooledfor `finishedl in oneworking strokeefthemachine tool.;V vs ,Il e, It is desirable to have a freey downward 5 y'excess of stroke offithe Ytools vmachiningthe above-,mentioned joint surfacesl'fl Such a-.free
excess of stroke is usuallyrprevented bythe Y' Y forwardly'l projecting- 'connecting Vflanges/' vfaces,`for example planing tools, milling cult-. A tersor grinding-wheels, have re down! Y fwardexcess-nf stroke. l Y f z In addition tothe adyantagesabove indi-"jlHV cated a' considerable enlargement ofthelcool Y capable of resisting vibrations.
gine and are yexposedft'o damages.` They are .therefore avoided according Ito the pres- ,ing space is obtained without increasingthe/"YQO mainfdimension's of thecylinder, .and fur- Y, j.
thermore, as shown by acompa-risonbe tweenV j Figs 2 and- 4, .a-strong and pleasingV form,v j
- ,Suchv pipes impair the kusefulnessjof.y tlieenent invention, a `further object ofthe invention beingto provide one or more channels as to multi-cylinder engines. Y
What I claim is:
1.`An internal conibu'stion engine workv ing on the twostrokeY cycle comprising in combination a cylinder,'a crankrcasehaving an upper part in kone piece `with the j'cylinder, the said crank Lcase fbeing intended to be used as a scavengingpurnp, yair inletsfin the crank case, a cylinder cooling j jacket having water pockets extending downl l wards in the corners of the crank case to cool the said air inlets, anda water inlet channel dium extending about the upper part of the crank case and the air inlets therein and the cylinder and back andsides of the scavenging air channel, the outer surface of the cooling jacket being formed by 4straight, lined gen-ratrices :extending from theupper cylinr-der ledge tangentially to the outline of the crank case, said jacket being provided with water lpockets extending downwardly to the corners of thecrankcase;
"In testimony whereof I have signed myname to this .speciiication Y f AEUGVEN MANDLER.
in open communication with one of lthe said water pockets'and extending to the base of the saidnpperpart of the crank easel'` 2. An internal combustion engine working on' the' two-stroke vcycle comprising invcombin'ation'a cylinder,a crank casehaving its upv per part in one piece with thecylinder andthe j said crank casebeing intended to Ybe used as a 'scavengingpunip, a cylinder cooling vjacket having an outer wall'bounded by a surface `generated' by av Ystraight, line Vrunning "from f f5 the upper cylinder edgen tangentially to' the outline of the crank case and :moving `round the cylinder, an air'inlet in said crank case,
an exhaust Vpassage extendingi'rom the cylin- `der to the bounding surface of the cooling jacket, cleaning holes in the outer wall of said jacket and' machined 0joint@surfacesY in Vthe-said wall surroundingtheend ci?. the exhaust p assage'therein, saifd air inletv andisaid y cleaning holes, said machined surfaces' lying '145 v locatedV vwithin/the,space'bounded byV these plainesI .l y j Y An internal in common planes, and ljco'nnecting flanges airchanne'hl a jacket'f'for'a coolingfrnedium Y *enclosing the cylinder, back 2and sides Yof the scavenging airphannel andthe upper'part r v'ofthe crank case, the `outerfsuriace of the y cooling jacket beingfornied by straight lined generatricesj` running froinf the l,upper cylinider-f edge tangentially to' thev outline of the crank case,
=f4gAn` internal combustion engine work on the two stroke cycle 1, principle includfingv cylindenja crank case adapted to be fused` as a scavenging pun1p",za'scaveng1ngair 4lchannelfsaidv Vcrank lcase having air inlet openings' therein, and a jacket forcooling mej combustion; engine work- Ving/"on the two strokef'cycleA principle includ- 1 1 ingfa cylinder,` aV crankV case-adapte'dfto rbe" Y fused asa scavenging'pump, 'a scavenging l
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT1791824X | 1928-11-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1791824A true US1791824A (en) | 1931-02-10 |
Family
ID=3688961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US336239A Expired - Lifetime US1791824A (en) | 1928-11-07 | 1929-01-30 | Cylinder of internal-combustion engines |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1791824A (en) |
-
1929
- 1929-01-30 US US336239A patent/US1791824A/en not_active Expired - Lifetime
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