US1487539A - Oil pump - Google Patents

Description

March 1s, 1924. 1,487,539

c. W. CLEMENTZ OIL PUMP.

Filed Aug. 17. 1922 2 sheets-sheet 1 g nue 11 T o'o Cllrncew Clement @Hoarau March 18, 1924. 1,487,539

c. w. CLEMENTZ OIL PUMP Filed Aug-l 17A 192.2 2 sheets-sheet 2 C larenceW mme n1; 5

tion engines under pressure.

@atented Mar. 18, 1924.

N l T CLARENCE W. CLMENTZ, OF JACKSONVILLE, FLORIDA, ASSIGNOB TO CRANKLFSS MTGINE COMPANY, 0F JACKSONVILLE, FLORIDA, .A CORFORATION 0F FLORIDA.

OIL PUMP.

Application :filed August 17, 1922. Serial No. 582,567.

To all whom it may concern:

Be it known that lI, CLARENCE W. CLM- nN'rz, a citizen of the United States, residing at Jacksonville, in the county of Duval and State of Florida, have invented certain new and useful Improvements in Oil Pumps, of which the `following is a specification.

My said invention relates to an oil pump for `use in feeding fuel to internal combus- It is an object of the invention to provide a device of this character in which each cylinder may be fed by its individual pump, or by means of a common passa e one or, more `of the pumps may act conjointly to feed one or more of the cylinders of the engines.

A further object of the vinvention is to provide a pump of this character which shall not be likely to get out of order, as it consists of but few parts and these parts ,are simple and strong.

Referring to the drawings,

Figure 1 1s a plan of my invention,

Figure 2 a vertical section on line 2-2 of Figure 1, and

Fi re 3 is a vertical section on line 3- 3 of Figure 1. I

In the drawings, reference character 10 indicates a block having a longitudinal inlet passage 11 for li uid fuel.- This passage has a number of ranches 12 normally shut oil from the inlet passage by check valves 13. For each passage there 1s a corresponding pump piston 14 movable in a bushing 15 set in an opening in the block.' The piston is operated b a shaft 16 bearing eccentrics 17, each of w ich actuates a connec-ting rod 18 secured at its lower'end to a cross-head 19, which cross-head carries the pump piston. A ridge 20 surrounds all the pumps and provides a basin for catching any oil that may escape about the pistons. At the forward end of each assage 2 is a valve 21 normally closing t e passage, but adapted to be opened by the pressure of the fuel which thereupon escapes into an outlet passage 22 extending substantially the length of the block and closed at one end by a screw 23. From this common passage individual passages 24 lead outward to s ray valves communicating with the cylin ers of the engine. A spray --valve suitable for this purpose is shown in my co-pending application of veven date.

herewith, but the pump can be used with other spray valves as will be obvious.

Each individual passage 24 is formed in a cylindrical plug 25, this plug having lalso y the valve casin and has threaded connectionwith the b ook 10. At its free end the plug has a nut 32 which holds the valve in lace. Between each pair of relief valves 1s a shut-oft vvalve 33 having a casing`34 threaded into the block 10, and the valve is held in place in the casing by an inten nally threaded nut 35 bearing against a shoulder on the valve. Each valve has a transverse aperture 36 and it willbe seen that by turning all the valves into the posi-i tion shown in Figure 3 the passage 22 will be'common to yall the outlet passages so that each pump will exert pressure on the spray valves at each of the cylinders, whereas if the shut-off valves are turned to the osition shown in Figure 1 each pump wil act to feed only its own individual cylinder. All the shut-olf valves may be closed, if desired, or any one or combination according to the exigencies of the particular situation.

Having fully described my what I claim as new and desire to secure by Letters Patent, is:

1. A fuel oil pump comprising a block, a plurality of pumps operating therein, a common inlet passage leading to said pumps a. common outlet passage receiving fue pum ed from said pumps, branch passages leading from said common outlet passa e and a relief valve connected with eac branch passage whereby the common outlet passage is interposed between the pumps and the said branch passage, substantial y as set forth.

2. A fuel oil pump comprising a plurality of pumps, a common passage receiving oil therefrom, branch passages leading from said common passage, and means acting at intervals along said common passage for invention,

selectively determining the action of the pumps on the fuel in said passages, substantially as set forth.

3. Avfueloil pump comprising a plurality of pumps, a common. passage receiving oil therefrom, branch passages leadin from said common passage, and Shut-o valves between said branch paages and adapted to cause each branch passage to receive fuel from its individual pump only, substantially as set forth.

4. A fuel oil pump comprising 'a block, longitudinal inlet and outlet passages therein, transverse passages leading from said inlet passage to said outlet passage, valvesv at the junction points between transverse pas-` meme@ sages-and the inlet and outlet passages, a pump between each pair of said valves and connected with a transverse passage and means operating at intervals along the outlet passage for selectivel determining the action of the pumps on t e fuel discharged into said outlet passage, substantially as set forth.

In witness whereof, I have hereunto Set mv hand and seal at Jacksonville, Florida,

lthuis 12th day of August, A. D. nineteen hundred and twentytwo.

CLARENCE W. CLEMENTZ. Witn:

J. L. Doss, JR., GLADYS COX.

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