US2691429A

US2691429A - Full flow oil filter installation

Info

Publication number: US2691429A
Application number: US316381A
Authority: US
Inventors: Kovacs Julius Paul
Original assignee: Purolator Products Inc
Current assignee: Purolator Products Inc
Priority date: 1952-10-23
Filing date: 1952-10-23
Publication date: 1954-10-12
Anticipated expiration: 1971-10-12
Also published as: GB747916A; FR1085193A; NL89454C; BE523707A

Description

Oct. 12,1954 P, KQV CS 2,691,429

FULL FLOW OIL FILTER INSTALLATION Filed OCC. 23, 1952 2 Sheets-Sheet 1 'INVENTOR.

, Julius B Kova'cs Oct. 12, 1954 J. P. KOVACS 2,691,429

FULL FLOW OIL FILTER INSTALLATION Filed 001:. 23, 1952 2 Sheets-Sheet 2 INVENTOR.

dalillsl li ovczee;-

Eli/@761) bk/07nd ATIURNEYS Patented Oct. 12, 1954 FULL FLOW 01L INSTALLATION Julius Paul Kovacs, Westfield, N. J., assignor to Purolator Products, Inc., Rahway, N. J., a corporation of Delaware Application October 23, 1952, Serial No. 316,381

5 Claims. 1

This invention relates to a systemfor filtering the full amount of lubricating oil which flows through an internal combustion engine, and to apparatus for providing an efiective system.

It has long been a problem to install lubricating oil filters of the full flow type on certain types of internal combustion engines (especially in the automotive field) without a costly, time-consuming, and complicated series of steps, unless provision for such installation has been made part of the basic engine design.

The primary object of this invention is to provide apparatus enabling one to make a full flow filter installation on engines which in manufacture have not provided'for such an installation; and to do so in a simple manner with a minimum of parts and effort.

It is a further object of this invention to provide means for .such an installation on new engines as well.

An additional object is to provide a simple part to accomplish this installation.

These objects, and others that may appear, are accomplished by modifying the engine oil pump in such a manner that oil will flow from the engine to the modified pump, to a filter, then return to a part in the modified pump, and finally flow back into the engine to'complete the lubrication cycle. Obviously, this invention could be applied to engines which are newly manufactured as well as to earlier ones already carrying oil pumps.

Other objects and features of the invention will become apparent from the following specification and the accompanying drawing, wherein:

Fig. 1 is a schematic representation of the complete lubrication cycle of an engine including the invention.

Fig. 2 is an exploded isometric view of a system embodying the invention and showing the relationship of the various components of the system; and

Fig. 3 is a pictorial view showing the components mounted on an engine.

Referring to the drawing and first to Fig. 1, an oil system I is illustrated in connection with an engine block I I. The system includes a sump I2 connected by a conduit I3 to an outlet opening or port I4 in the engine block. An adapter I5 is appropriately secured to the engine block I I and has in it an independent through passageway I5, one end of which registers with the outlet opening or port I 4 of said engine block. The other end of said passageway I6 registers with the inlet passageway or port I I of an oil pump I8. The

outlet opening or port v with one end of a second independent passageway 20 provided in the adapter I5. The other end of passageway 20 is connected as by a conduit 2| with the inlet opening or port 22 of a conventional type of full flow filter 23. The outlet opening or port 24 of the full flow filter 23 is connected by a conduit 25 with one end of a third independent passageway 26 provided in the adapter I5. The other end of said third independent passageway 26 is connected to the inlet opening or port 21 of a passageway 28 connected to the engine oil gallery 29 and by conduits or passageways 30, 3| and 32 to the pressure gauge 33 and bearings 34 and the latter by conduit or passageway 35 is connected back to the sump I2.

In Figs. 2 and 3, the same cycle is illustrated except that they show structural details of the adapter I5, and a specific manner of its mounting relative to the pump and the engine. In the case of engines already equipped with a pump I 8,

the adapter I5, as shown particularly in Fig. 2, is a metal block having surfaces shaped to fit the inner face of the pump I8 and the outer face of a flange 31 on the engine block II. Since the adapter I5 is to be interposed between said faces it has a constant section, and is only made as wide or thick as necessary to permit the addition of an outlet and inlet opening respectively on the upper edge surface for the

passageways

20 and 26. As can be seen, the three channels or passageways I6, 28 and 26 are provided in the adapter I5. Channel I6 is provided for registry with port I! of the pump and port Id of the engine side. Channel 20 is provided for registry at its opposite ends with port I9 of the pump and an opening or port 38 on the upper surface of the adapter I5 and is connected to conduit 2|. Channel 26 is provided for registry with port 21 of the engine and an opening or port 39 on the upper surface of adapter I5 and is connected to conduit 25.

In'order that the pump shaft Ml may still be driven from the usual drive shaft 4| in the engine block I I, an extension shaft 42 is attached to the shaft 40 by conventional means such as a peened pin (not shown). A hole 43 extends through the thickness of adapter I5 and the extension drive shaft 42 passes through this hole 43 in the adapter I5 and into the engine through aperture 44, and engages the said usual driving shaft 4|.

The adapter I5 is made part of the installation by merely placing it against the engine fiange 31, placing the pump I8 against it, and bolting through the aligned holes 45 and 46 on the I9 of the pump registers adapter, 47 and 48 on the pump, and into the existing tapped

holes

49 and 50 on the engine flange 31. This automatically aligns the appropriate ports and openings and couples extension shaft 42 to drive shaft 4|.

With this arrangement, then, the oil passes from the pump outlet port l9, into adapter 15 flowing through channel 20, then out of adapter outlet 38 into conduit or tubing 2|, and then into a conventional full flow filter 23. Mounted in the filter 23 is a filtering element 5| of known outside-in type, so that the oil will flow via the inlet or port 22 into the filter casing and pass through the element 5| so that filtration of all the engine oil will occur. A spring-loaded bypass 52 is a conventional part of the filter 23, and is designed to open at a predetermined load if the filter element 5| becomes clogged. This allows the oil to bypass the filter element 5! and flow through portion 53 of the filter casing. After the oil has passed through the filter element 5! or the portion 53, it will pass through center tube 54, out through outlet 24 and then through conduit or tube 25. From the latter it passes again into the adapter [5 through inlet port 39 and flows through channel 25, whence it re-enters the engine block through port 2?. The flow occurs within the engine as usual, passing via

passageways

28, 30, 32, 35 to gallery 29, gauge 33, and bearings 34 to sump I2. The oil leaves the sump l2 via passageway I3 and port It, enters and fiows through channel it in the adapter 85, out of the latter and then via port ll, returns to the pump I8. The whole cycle of flow is then repeated.

If it is desired to make up a completely new installation, the adapter 15 and extension shaft 42 are made integral parts of the pump H3 and shaft 4!] respectively.

Further, it is not necessary that the filter be mounted away from the engine block as shown, but it may be mounted directly on the oil pump and the conduits or tubes 2! and 25 may either be shortened or eliminated, depending upon location of the inlet and

outlet ports

22 and 24 of the filter 23.

Thus it can be seen that the invention provides a simple way of providing for full flow oil filtration on an engine that had no regular provision for such a system, without need of reconstruction of the engine itself. It consists simply of modifying the oil pump l8 by adding to it an adapter l5 which diverts the fiow for eifective filtration.

Having thus described the invention, it will be seen that modifications may be made therein by one skilled in the art without departing from the spirit of the invention, or the scope of the appended claims. There is no intention, therefore, of limitation to the details disclosed.

What is claimed is:

1. In an internal combustion engine having oil inlet and oil outlet ports via which oil is circulated cyclically to lubricate moving parts of the engine and including an oil pump having inlet and outlet ports for circulating oil to the engine, an adapter having a first independent passageway registering with the oil outlet port of the engine and the inlet port of the pump, said adapter having a second independent passageway registering with the outlet port of the pump and an outlet port of the adapter connected to an inlet port of a full flow filter, and said adapter having a third independent passageway having an inlet port at one of its ends connected with an outlet port of said filter and having the other end of said third passageway registering with said oil inlet port of said engine whereby oil is circulated by operation of the pump through the filter in its lubricating circulating cycle, said adapter being mounted between the engine and the pump, and means extending through an opening in said adapter for operating the pump from the engine.

2. In an internal combustion engine including an oil pump, a full flow oil filter installation comprising a filter casing and a filter element, and an adapter mounted on the engine between said engine and said pump, said adapter comprising means for conveying all of the oil from the engine via the adapter to the pump, from the pump to the adapter, from the adapter to the filter casing and from the filter casing via the adapter to the engine.

3. In an internal combustion engine including an oil pump having an inlet and an outlet, a full flow filter installation comprising a filter, and a body mounted between said engine and said pump, said body having oil passages therein arranged tocause all of the oil to fiow from the outlet of said pump through the body to said filter, from said filter through the body to said engine and from the engine through the body to the inlet of said pump.

4. In an internal combustion engine including an oil pump having an inlet and an outlet and a drive shaft, a full flow oil filter installation comprising a filter casing and a filter element therein, an adapter mounted between said engine and said pump, said adapter comprising means for conveying all of the oil from the outlet of said pump to said filter, from said filter to said engine and from said engine to the inlet of said pump, and an extension drive shaft connected to said pump drive shaft and extending through said adapter for driving connection with said engine.

5. In an internal combustion engine having oil inlet and outlet ports via which oil is circulated to lubricate moving parts of the engine and including an oil pump having inlet and outlet ports, an adapter mounted between said engine and said pump and having a first passageway providing communication between the engine oil outlet port .and the pump inlet port, a second passageway providing communication between the pump outlet port and an inlet port of a full flow filter, and a third passageway providing communication between an outlet port of said filter and the oil inlet port of said engine whereby all engine oil is circulated through the filter in its lubricating cycle by operation of said pump.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,720,475 Hewitt July 9, 1929 1,761,940 Shutts June 3, 1930 1,844,611 Spackman Feb. 9, 1932 1,854,971 Allen Apr. 19, 1932 2,474,009 Molyneux June 21, 1949 FOREIGN PATENTS Number Country Date 936,693 France Feb. 23, 1948 OTHER REFERENCES The Automotive Engineer of June 1943, page '73.