US1789397A

US1789397A - Internal-combustion engine

Info

Publication number: US1789397A
Application number: US112365A
Authority: US
Inventors: Jesse G Vincent
Original assignee: Packard Motor Car Co
Current assignee: Packard Motor Car Co
Priority date: 1926-05-28
Filing date: 1926-05-28
Publication date: 1931-01-20
Anticipated expiration: 1948-01-20

Description

Jan. 20, 1931. v c T 1,789,397

INTERNAL COMBUSTION ENGINE Filed May 28, 1926 boresduring the cranking of Patented Jan. 20, 1931 UNITED STATES PATENT OFFICE JESSE G. VDTGEN'I, OF DETROIT, MICHIGAN, ASSIGNOR TO PACKARD MOTOR CAB COM- 1 rm, or marrnorr, moment,

A CORPORATION OF MICHIGAN INTERNAL-COMBUSTION Application fled is as,

This invention relates to internal combustion engines, and more particularly to means for lubricating the piston cylinders of said engine.

It is common in the internal combustion engine art to lubricate the cylinders by means operating only when the engine is working.

The object of the present invention is to provide means for lubricatin the cylinder the engine, just preliminar to the starting of the engine proper. ith this object 1n view, the invention consists of means for supplying the cylinder bores with a lubricant, preferably oil from the sump of the engine,which means are operated by the cranking mechanism, such for example as the electric starting motor. Any suitable means operated by the starting motor for directly ejecting a lubricant into the cylinder bores throughtheir open lower ends may be employed. Preferably, a series of paddles is mounted on, a

horizontal shaft in the sump ofthe engine,

and so located and rotated at such speed that the oil' in the sump, even when very cold,

will be copiously supplied directly to the cylinder bores and generously lubricate the same during the cranking period.

- The inventive ide'ais capable of receiving a variety of mechanical expressions, one of which, for the purpose of illustrating the invention, is shown in the accompanying drawings, but it will be expressly understood that such drawings are for purposes of illustration only and are not intended to define the limits of the invention, reference being had to the appended claims for such purpose. In said drawings- Fig. 1 is a vertical cross-section of an in-- 4o ternal combustion engine through one of the cylinders and the sump; and

Fig. 2 is a broken detail perspective show ing the application of the invention.

In said drawings, 1 is the englne cylinder,

2 the piston, and 3 thesump containing lubricating oil. 4 is the usual or any suitable electrical starting motor, and 5 is the rear end of the armature shaft of said starting motor. shaftfi is mounted longitudinally of the sump and, as here shown, above the surface of the 1920. Serial No. 112,365.

shaft 6. Preferably, the shaft 6 extends throughout the length of thesump 3, and a sufficient number of paddles are supplied thereto to effectively lubricate a series of cylinders of any desired number arranged above the sump.

The operation of the mechanism will be readily understood. When the startin motor is setin motion, the shaft 6 is rapid y revolved and the oil, even though the same may be very cold, is copiously supplied to'the cylinders through their open lower ends, so that they are eiliciently lubricated, and when the cranking motor 4 is stopped the operation ofthe shaft and its paddles ceases, and the 1 cylinders are lubricated in the usual way by the ordinary lubricating mechanism of the engine.

What is claimed is 1. In an'internal combustion engine, the

combination of a piston cylinder, an oil sump located beneath the cylinder, an electric starting motor, and means operated by thestarting motor for supplying oil directly from the sump to the piston cylinder, through the open lower ends thereof.

2. In an internal combustionengine, the combination of a piston cylinder, an oil-sump beneath the same, a starting motor for said engine, a shaft in said sump, means-opera tively connecting said shaft to the starting motor, and means actuated by said shaft for throwing oil into the cylinder, through the lower open end.

3. In an internal combustionengine, the combination of a cylinder, an oil sump be-. neath the same, a starting motor, a shaft in the sump, paddles on said shaft which enter the oil in the sump when the shaft is revolved, and operative connections between the armature shaft of the starting motor and the paddle shaft in the sump. V

In testimony Whereof I ,have signed this specification. v

JESSE G. VINCENT.