US1051008A

US1051008A - Cooling of pistons.

Info

Publication number: US1051008A
Application number: US59031510A
Authority: US
Inventors: Theodor Reuter
Original assignee: Busch Sulzer Bros Diesel Engine Co
Current assignee: BUSCH-SULZER-BROS DIESEL ENGINE Co; Busch Sulzer Bros Diesel Engine Co
Priority date: 1910-11-02
Filing date: 1910-11-02
Publication date: 1913-01-21
Anticipated expiration: 1930-01-21

Description

T., HEUTE-L,

COOLING 0E PSTONS.

APPL1cAT1oNr-1mmwov-z, 1910.

Patented am 2, MMS.

H @mi ,y

estema,

l'l'y ODOEiBlETER, 0F WINTERTHUR, SWITZERLAND, ASSIGNO T0 BUSCH-S BaosJ-nlnsnn'nuerun coureur, or sr. Louis, missouri,l a conroaa'rrou or rarsso ccoLI'Ne or rrs'rous.

vspea1e-amfnewmet. Patent cameriere.

Application filed November 2, 1810. Serial No.' 590,315.

' To al whom it may concern.'

Beit known that I, Trmonon Raum, engineer, a citizen of the Swiss Republic, residing at 24 Obere Wielandstrasse, Winterthur, Switzerland, have invented certain new and useful Improvements inor Relating to the Cooling of Pistons; and I do hereby declare the following toibe a full,

clear, and exact description ofthe. invention, such as will enable others skilled in the artto. which it appertains to make and use the same.'

vvThis invention is an improved means forl cooling reciprocatingrpistons or like members.

In' systems'of .p1ston-cooling, heretofore employed, diiiiculty has been experienced with the stuiiing-boxes, to keep them tight underthe pressure of the cooling liquid and which the cooling liquid is supplied can be accordingl reduced without sacrifice of cooling e ect, and other improvements in the cooling etliciency are rendered available;

in `particular, `the necessity for stboxes is avoided.

vA construction, of cooling apparatusfem;

' bodying the present invention 1s illustrated,

. but merely i medium above referred to.. v

liquid is admitted' drawmg, which represents an engine piston in longitudinal diagrammatic section, supplied with connections suitable for introducing thereinV the elastic cooling companying Cooling water or other through a stationary pi 'a disposed with# in a tube b of ater iameter, secured to and moving wit piston e. rihe relative dimensions of the stationary sup 1y pipe a and the movable tube b are suclr't at an annular passageway is left between them, through which air from the atmosphere or other source may be'admitted'to the chamher f formed inside of the piston. Also secured to the piston c, so as to reciprocate therewith, is e discharge pipe d which is parallel with the tube b. The pipes b and d in the p resent caseA have telescopic engagement rwith a casing g which vis appropriately formed tor accommodate their movements, without, however, affording communlcatlon from one to the other slave through the interior of the piston.

The supply ipe a discharges the water through a nozz e e, of such dimensions that a )et of high velocity is produced, whichre- Amains a solid 'jet or column for some distance beyond the nozzle and preferably until 1t strikes the wall of the piston chamber f, upon which it impinges as indicated on the diagram. Simultaneously with the admission of the water jet, air from the atmosphere is drawn or forced into the casing g through the pipe z' thereof and passes into the tube b, ultimately' commingling with the water of the jet, so that an elastic mixture of commin led water and air is thereby produced, which mixture passes out through the discharge ipe d into the outlet side of the casing g w ich it will'be observed, serves 'as a separator for the liquid and air,'the air escaping to the atmosphere through the air pipe h, while the liquid collects in the hot-f tom of the-casing, where it can be'separately removed to be used over again if desired. When cooling liquids other than( water are employed the separate recovery of the same and alsoof the liquid passing o as vapor orparticles entrained with the 'air is readily accomplished bythe means indicated.

. In someA cases the cooling water, instead of being directly introduced into the cooling chamber formed in the piston, may be initially admitted as an air-entraining jet into an intermediateA chamber in communication vwith the cooling chamber, and i desired two or more supply pipes, each provid with a nozzle, may beprovided for one and the same piston, and more than one dischzige pipe can be similarly employed ifdesir these being matters of ordinary adaptation to the l conditions encountered and not requiring special description. it

will be obvious that the inlet'and outlet tubes can be arranged on the piston in any suitable manner, concentric or otherwise as desired, and also that the apparatus can be used for cooling reciprocating pistons or plungers of all kinds, for )instance plungers of compressors, or the pistons oi internal combustion engines, andthe like.

also t e suppl When the apparatus is used in connection like reciprocating members, the combinawith internal combustion engines having several cylinders, the cooling water for the various pistons may be derived from a comlnon feed pipe arranged to supply the liquid under the same pressure to all of the pistons, but in order`to insure that the delivery of such liquid will be made in equal amounts in all pistons, the chambers therein may be made to communicate with each other in any suitable manner so that the same pressure will prevail in each. Various other modifications in the form and arrangement of the essential parts ofthe apparatus may obviously be made for producing an elastic cooling medium in place of the solid liquid heretofore employed. In any such case, the joints or parts by which the reciprocating piston is connected to the'stationary supply of the cooling liquid. can be made without stufiing-boxes or other devices specially constructed to resist high pressure, the arrangeinentshown in the diagram being suliicient to confine the liquid without leakage, when the connections between the stationary supply pipe and the piston are formed by telescopic joints. casln g is supposed to be stationary, as is pipe a, but it will be obvious that both mig t be movable with the piston if desired, in which case some provision for the supply of water thereto while in motion -will of course, be necessary.

Hiaving described my invention, I claim the following: f

1. Cooling apparatus for pistons and like reciprocating members, comprising means for introducing into the piston an elastic cooling medium consisting of a ,mixture of a cooling liquid and a gas.

2. In cooling apparatus for'pistons and In the case illustrated, the

tion with the piston` having a cooling chamber, of a passage communlcating therewith provided with an air inlet and a 'nozzle' arranged to direct an air-entraining jet of liquid through thesaid assage.

3. Cooling vapparatus or pistons and like reciprocating members, comprising the piston having a chamber, means for injecting into the chamber a jet of cooling liquid, means for admitting air to the jet and a discharge passage for the mixture of liquid and air. v Y ,c

4. Cooling apparatus forpistons and like reciprocating members, comprising meansl for passing a cooling medium,l comprising liquid and as into the piston, an outlet therefor, am? a gas and liquid separator con'` nected to the outlet.

5. The combination of .a reciprocatory hollow piston having a tube movable therewith and communicating with the interior thereof, said tube also communicating `with the atmosphere, and a fixed pipe to inject an air-ent1'aining-jet lof water-through the tube and intorthe piston. t 4 6. In apparatus for cooling pistons, the combination of a piston having a chamber municating with said chamber andwith the' atmosphere and reciprocating with the? pis- .A ton, a cooling water supply pipe within thev air vtube and a. warm water discharge tube vformed within it, an air supply tube c0111-V v communicatin' vwith the chamber and re- 75 ciprocating with the piston as setort-h.

In v testimony whereof I have aiiixedmy signature, in presence of two witnesses.

' THEODOR REUTER. Witnesses:

WILHELM BACHMANN, AUGUST MARKHN..