US1533810A

US1533810A - Air-cooled cylinder

Info

Publication number: US1533810A
Application number: US357171A
Authority: US
Inventors: Chester S Ricker
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-02-09
Filing date: 1920-02-09
Publication date: 1925-04-14
Anticipated expiration: 1942-04-14

Description

A ril 14, 1925..

- 1,533,810 c. s. RICKER AIR COOLED CYLINDER Fil ed Feb. 9, 1920 2 Sheets-Sheet 1 Aprifi M, 11925..

' @312. s. RECKER AIR COOLED CYLINDER Filed Febo 9, 1920 2 Sheets-Sheet 2 Patented Apr. 14;, 19,25.

UNITED; STATES CI-IESIER S. RICKEB, F INDIANAPOLIS, INDIANA.

AIR-COOLED CYLINDER.

Applicatinn filed February 9, 1920. Serial'No. 357,171.

To (HZ 1071 am it may concern:

Be it known that I, CHESTER S. RioKER,

' a. citizen of the United States, residing at air passages Indianapolis, in the county of Marion and State of Indiana, have invented a new and useful Air-Cooled Cylinder, of which the following is a specification.

It is tlie'object of myinvention to cool internal combustion engines by air, by a construction. which is simple and inexpensive and an arrangement which provides an efiicieiit air movement.

The accompanying drawings illustrate my invention. Fig. 1 is a through an engiiie'cylinder provided with my improved air cooling structure, being taken on the line 11 of Fig. 2; Fig. 2 is part elevation and part longitudinal section on the line 22 of Fig; 1 of such engine cylinder; Fig. 3 is an end elevation, in partial section, of a fixed radial type engine embodying my invention; and Fig. 1 is a bottom plan of the engine shown in Fig. 3, with the fan in section.

Referring first to Figs. 1 and 2, in which a single cylinder is shown, the cylinder 10 is of any desired type, with any suitable valve arrangement for its intake andexhaust. are embedded a plurality of thin metal members 11, which are approximately L- sliaped in cross section, as is clear from Fig. 1. These members project radially from the cylinder, and the free end of the base of the L of each abuts against the heel of its neighbor. The members 11 form a complete circumferential series of longitudinal 12, each of which is formed by two adjacent L-shaped members, the base of one of such members, and the cylinder wall itself. This is a construction which is very easily manufactured, as the vLshaped members may be made of rolled sheet metal or of sheet-metal stainpings and can readily be firmly embedded in place in the outer surface. of the cylinder.

The passages 12 are opernat their ends, and air inay be caused to flow through them in various ways. A preferred arrangement for producing this flow of air in radial type transverse. section In the outer surface of the cylinder engines is shown in Figs. 3 and 1. The several cylinders 10 are arranged'radially around a common crank shaft 13, in the usual manner of radial type engines, so that the passages 12 the complete engine. The outer ends of the passages 12 are 013911 130 the atmosphere. The inner ends of such passages 12 open into a chamber 14 surrounding the crank case 15 in which the shaft 13 is located, which chamber 1 1 is common to the passages 12 of all the cylinders. This chamber 1 1 is closed at one axial end, by an end wall 16, and at the other axial end opens into the central intake eye of a centrifugal fan 17 concentric with the shaft 13, which shaft carries the blades of the fan.- As the shaft 13 rotates, the centrifugal fan throws air outwardly through the openings 18 in its periphery, thus creating a suction which are radial with respect to causes a continuous inflow of air through the passages 12 into the chamber 1 1. -This produces a flow of air which effectively cools the cylinders.

I claim as my invention:

1. A cylinder for internal combustion engines having continuous longitudinal heat radiating fins, each fin having at its outer edge a flange extending to the next fin, such fins with their flanges forming a plurality of longitudinal air passages open at top and bottom for permitting air to be passed lengthwise of the cylinder past the 'fins within the casing formed by the fin-flanges. 2. A cylinder for internal combustion en gines having continuous longitudinal heat radiating fins embedded in the cylinder wall, each fin having at its outer edge a flange extending to the next fin, such fins with their flanges forming a plurality of longitudinal air passages open at top and .bottom for permitting air to be passed lengtlnvisc of the cylinder past the. fins within the casing formed by the iii-flanges. In witness whereof, I have hereunto set my hand at Indianapolis, Indiana, this fifth day of February, A. I). one thousand nin hundred and twenty.

CHESTER S. RICKER.