US1091249A - Motor-lubricator. - Google Patents

Description

W. P. SGHNLAND, JR.

Patented Mar. 24, 1914 COLUMBIA PLANoaR/wu C0.Y wAsmNri'rvNv D. c.

WILLIAM F. scHNLAND, JR., or MANCHESTER, NEW HAMPSHIRE.

MOTOR-LUBRICATOR.

To all whom t may concern Be it known that I, WILLIAM F. SCHN- LAND, Jr., a citizen of the United States, and a resident of Manchester, in the county of Hillsboro and State of New Hampshire, have invented certain new and useful linprovements in Motor-Lubricators, of which the following is a specilication.

This invention relates to means for lubricating the working parts of a motor or engine, and refers particularly to the lubricating of internal combustion motors.

The object of the invention is to provide improved means whereby the working parts of the motor or engine will be automatically, constantly and equally furnished with a supply of lubricating oil, said supply being effected, in motors having a plurality of cylinders, by a current or draft of air. alternately forced in opposite directions by the motions of one or more pairs of reciprocating pistons, and in single cylinder engines by the same force alternately applied by the downward throw of the piston and com-. pressed air formed thereby.

To these ends, the' invention consists in providing a crank case with an oil well or pocket, and a bailie plate or partition eX- tending nearly to the bottom of such well or pocket, the location of said baille plate in multiple cylinder motors being such that two pistons operating to alternately compress, and reduce pressure of the' air, on opposite sides of the baffle plate will cause the air to take up oil from a suitable quantity in the well or pocket and spray the same into the chambers invwhich the cranks rotate, and upwardly to the cylinders; the baffle plate or partition in single-cylinder engines being located between the crankcase and a subsidiary air-chamber, the piston in its downward throw compressing the air in the subsidiary chamber, and the compressed air alternately returning, sprays the oil, along the lines of least resistance, to the working parts.

Of the accompanying drawings, 1 represents a vertical longitudinal through sufficient of the parts of a multiple cylinder, internal combustion engine of suitable type to enable my present invention to be understood. Fig. 2 represents a vertical transverse section through the same. Fig. 3 represents a sullicient portieri of a Figure section Specification of Letters Patent. Application filed July 31, 1913.

plurality of cylinders,

single cylinder engine, in vertical cross-sec- Patented Mar. 24, 1914. Serial No. 782,171.

tion, to illustrate the adaptation of my invention thereto.

Similar reference characters indica-te the same or similar parts in all the views.

VThe cylinders 10, pistons 11, pitmen 12 and cranks 13 are, or may be, of any well known type. For present purposes, it is not necessary to illustrate or describe in detail the operation of the pistons and valve mechanism.

The crank shaft is shown as mounted in end bearings 14E, and in engines having a in intermediate bearings 15, the latter being supported by transverse webs 16 of the crank shaft casing. The lower portion 17 of the crank shaft casing is formed as a pan with two depressions to form pockets or wells 18. This lower portion 17 is preferably aseparate portion of the crank casing, and is so shown, although I do notlimit myself to making it exactly as shown. There being four cylinders included in the particular type of engine illustrated in Fig. 1, there are two pockets or wells 18, but if there were but two of the cylinders then the crank easing would not need to have but one pocket or well; and this latter statement applies also to the one cylinder engine shown in Fig. 3.

In Figs. 1 and 2 the supporting web 16 that is located between the pitmen 12 of each pair of cylinders is formed or provided with an .eXtension19 which constitutes a baffle plate. Its lower edge extends sufliciently close to the bottom of the pocket 18 as to be immersed in a quantity of lubricating oil, that said pocket is capable of containing, so that any tendency of air to pass the baliie platev 19 will be obliged to reduce the level of the oil on one side of the baiie plate and in escaping under the lower edge of said baille plate carry with it a spray of oil upwardly into the chamber where the lesser air pressure exists.

uIn operation of the engine shown in Figs. 1 and 2, each piston as it reciprocates will alternately increase and reduce the pressure of air in the space below it, said space not only including a portion of the cylinder, but also the portion of the space in the crank casing that is below it. With 'the particular type of engine illustrated in Fig. 1, the two end pistons of the series move in one direction, while the pistons of the two middle cylinders move in the opposite direction. Therefore, the crank casing is divided into three chambers, one under each end piston, and one under the two middle pistons. As the pistons reciprocate, the oil in the two wells or pockets is caused to be alternately sprayed in different directions by the air that is forced under the baffle plates.

In my invention as adapted to a singlecylinder engine, shown in Fig. 3, a portion of the crank-casing 17l itself may be made to form the partition or baffle plate between the crank-case and the subsidiary-chamber A, and the lower portion of the case-chamber will be positioned so as to form the oil pocket or well 18 immediately under the baffle-plate. In operation in this adaptation, the air in crank-case is forced on the downward-throw of the piston into the subsidiary chamber to a compression iiXed by the chambers size, and on the up-throw of the piston, such compression, aided by the vacuum in the crank-case, forces the air in return through the well, spraying the oil upwardly in the crank-case.

It will now be seen that I have provided an exceedingly simple means whereby the working parts of the engine or motor may be kept suitably supplied with lubricant, without wasting of the latter, and without risk of interfering with any valve mechanism, or members of the igniting devices; and whereby the waste of oil running through the exhaust, when the crank-case stands at an inclination from the horizontal plane and two of the cylinders are receiving practically all the remainder of the lubricant, will be overcome, thus emphasizing the efficiency of my invention in all possible operative positions of the motor.

Any suitable means may be employed for either supplying oil regularly or at intervals to the pockets or wells, or for removing any sediment therefrom if desired I claim 1. An engine having a plurality of cylinders and pistons and having a crank case provided with an oil well or pocket, and a baflie plate extending into said well or pocket whereby the reciprocations of the pistons will cause the oil in the well or pocket to be alternately sprayed in dilierent directions by air forced under the baille plate.

2. An engine having two pairs of cylinders and pistons and a crank shaft for the pitmen of all of said cylinders, a crank case having two oil wells or pockets, and bale plates extending into said wells or pockets.

3. An engine having a plurality of cylinders and pistons and having a crank case provided with an oil well or pocket, a web extending transversely of the crank shaft between the pistons, and an extension from said web to form a baille plate, the lower edge of said extension or plate terminating a little above the bottom of the well or pocket whereby oil in said well or pocket will be displaced or forced from side to side by liuctuations of air pressure under the influence of the reciprocating` pistons.

4;. An engine having a. single cylinder and piston, and having a crank-case and an airchamber connected with said crank-case, sa id crank-case and air-chamber being provided with an oil well or pocket, and a partition forming a baliie plate between said case and chamber, whereby the movements of the piston will cause the oil in the well or pocket to be alternately forced into said chamber, and sprayed into said crank-case by the air forced under the bathe-plate.

5. An engine having a single cylinder and piston, a crank-shaft, a crank-case and connecting air-chamber provided with an oil well or pocket, and a baille-plate extending into said well or pocket, and forming a partition between said case and said chamber.

In testimony whereof I have aiiixed my signature in the presence of two witnesses.

TILLIAM F. SCI'IONLAND, Jn.

Witnesses J. B. CAVANAUGH, BLANCHE Momssn'r'rn.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents.

Washington, D. C.

Images