US1362006A - Lubricant-segregating means for inverted internal-combustion engines - Google Patents

Description

w. H. JOHNSON, ANT SEGREGATING MEANS FOR INVERTED INTERNAL COMBUSTION ENGINES.

APPLICATION FILED FEB, 20, I920- 1,362,006.

LUBRIC Patented Dec. 14, 1920.

In yen tar, WiZZiS J7. J07gnson, 5y

lTED STATES OFFICE,

WILLIS H: JOHNSON, or wnrnnnoo, rown.

LUBRIGANT-SEGREGATING MEANS FOR INVERTED INTERNAL-COMBUSTION ENGINES.

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Specification of Letters Patent.

Application filecl- February so, read Serial No. 360,043.

lubricant segregating means for inverted internal combustion engines, and the object of my improvement is to supply such anengine with means for diverting fluid lubricant discharged from moving parts above the cylinder and piston to be in greater amount segregated from said cylinder and conveyed to an independent receptacle, from which it may be drawn without admixture with or contamination by the condensed fluid fuel of the engine.

This object I have attained successfully by the means which are hereinafter described and claimed, and which are illustrated in the accompanying drawing, which is a vertical central longitudinal section'of an inverted internal combustion engineoconstructed to include my improvement.

The engine may be of any type pertaining to he class wherein a piston is reciprocable through an open-ended cylinder 9. As commonly employed, such engines when the cylinders are placed upright, have their combustion-chambers located at the top, with the piston-rod depending in each case toward a crank-shaft whose cranks are inclosed in a crank-case below the cylinder. In this class of engines, a certain proportion of unconsumed condensed fuel-oil, such as kerosene or other mineral hydrocarbon, can work downwardly between the piston and the cylinder-walls from the combustionchamber, and mix with and contaminate the lubricating-oil which is used in the crankshaft bearings and discharged thence into,

the lower and receiving part of the crankcase. The mixed oils are hard to separate, in order to permit of again using the lubricating-oil free from such contamination.

To prevent this mixing of the fuel-oil with the fluid lubricant, I have inverted the engine, as shown, to locate the internal-combustion chamber of the cylinder at its lower end at 7, so that the piston may reciprocate in the cylinder 9 with its piston-rod extending upwardly to the crank-shaft which traverses the crank-case 2 above the cylinder.

The crank-case is constructed with its sidewalls 1 considerably wider apart than the diametei of the cylinder 9 below, so that the bottom of the crank-case at 3 may be horizontally disposed surrounding the open up-- per end 4 of said cylinder and spaced below it. A receptacle 6 may be formed integral with said casing and extending below it, to communicate therewith by means of an opening 5, said receptacle having a vent at the bottom supplied with a screw-plug whereby the contents may be evacuated when desired.

It will be observed that, when lubricatingoil is supplied o the bearings of the 'moving partswithin said crank-case, the oil which is thrown off from these rapidly movin parts will tend to be dispersed downwar ly and outwardly in directioninto the receptacle or pan formed by the depressed bottom '3 of the crank-case, and drained thence through the opening'5 into the well or vessel 6, without admixture in any way with condensation products of the engine fuel, or any carbon or other contamination due to the consumption of fuel in the combustion-chamber or the. action of the mechanical elements of the enine. This lubricant is therefore suitable or reuse at once without need for purification.

Asuiiicient quantityv of the lubricant descends into the open upper end of the cylinder 9 to lubricate the piston without excess. No kerosene can work from the come bustion-chamber 7 into the crank-case to .said casing being formed with means for segregating part of the fluid lubricant delivered from the mechanisms in the casing and separate from the said cylinder.

2. In an internal combustion engine, of the inverted type having its combustion chamber below the piston, means located at the upper end of the engine cylinder and Patented Dec. 1a, 1920. Y

2 v v memos spaced below'it, adapted to receive and dicylinder, and a receiving vessel snlrrounding' vert lubricant delivered downwardly fro the open upper end of said cylinderwith' its 10 moving parts above said cylinder; bottom spaced below said open upper end, 3. In an internal combustion engine en 'said vessel having means for removing its 5 inverted upright cylinder, a, reciprocable contents.

piston therein with piston-rod extending up- -Signed at Waterloo, Iowa; this 28th day wardly a crank operatively connected to-seid of J anilary, 1920.

piston rod above the open upper end of said WILLIS H. JOHNSON.

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