US2146881A - Air cleaner mounting for engines - Google Patents

Description

Feb. 14, 1939. ER ET AL 2,146,881

AIR CLEANER MOUNTING FOR ENGINES Filed Sept. 4, 1956 2 Sheets-Sheet l Y Feb. 14, 1939. p. BAKER ET A 2,146,881

AIR CLEANER MOUNTING FOR ENGINES Filed Sept. 4, 1936 2 Sheets-Sheet 2 Patented Feb. 14, 1939 {UNITED STA PATENT OF Fl AIR CLEANER MOUNTING FOR ENGINES Application September 4, 1936, Serial ,No. 99,362

8 Claims.

"The'invention relatesto an improved mounting for'one 'ormore 'air Cleaners utilized in supplying cleaned "air to engines, which air is used in pro- 7 ducing a combustible .mixtureo-n which the en- .g'ine operates.

"Heretofore, in mounting these air cleaners, especially in tractors, the practice has been to mount the air-cleaner or air cleanerson the dash "behind the engine, or in the hood, or on the 11) radiator shell, or in any other convenient place undemeath the hood for the engine. Such previous air cleaner mountings have resulted in a rather cluttered-:upappearance and as the 'cleaner usually was located some distance-away 13 from the engine, it was required to provide .cer-

tain flexible conduit connections between the cleaner and the engine intake manifold. These connections increased the cost of the .air cleaner installations and in use it is found that when the tractor frame, which carries the engine,.is subjectedto twisting strains, objectionable relative movementbetween the air cleaner and the engine resulted.

It is, therefore, desirable that .an improved mounting for the air .cleaneror air cleaners be .provided to make for bettelzappearance, greater compactness .of assembly, and to eliminate the flexible conduit connections to save this added expense and to ,provide a more stable and rigid mounting so that relative movement .between .the air cleaner or cleaners and the engine cannot take place.

It is proposed to overcome the diificultiesheretofore encountered in mounting the air cleaners by;looating the same directly and rigidly on the intake manifold for the engine.

These desirable objects are accomplished by the illustrative example of the invention herein disclosed wherein, for thesake of illustration, a Diesel engine .is-depicted, said engine beingof the type which is started on Otto cycle with a carbureter and ignition system and subsequently is switched to full 'Diesel cycle. .It is to be understoodthat the air cleaner mountingdisclosed for :a'Diese'l engine is merely one l'fonn which the mounting may assume in practice .and that it may equally well be used in connection with the manifold for the regular ignition type of internal combustion engine.

'In the-accompanying sheets of drawings illustrating *a preferred example of the'invention,

v:Figure 1 is 'a general plan-view of aside of an engine with its intake manifold and the 'air cleaner mounting associated therewith;

"Figure '2 --'is a "cross sectional view "through the manifold and control valve structure taken along the line 22 of Figure 1 looking .in the direction of the arrows;

Figure 3 is a transverse, cross sectional view through the manifold and air cleaner mounting taken along the line 33 of Figure 1 looking in the direction of the arrows; .and,

Figure 4 is a longitudinal, cross sectional View through the air cleaner mounting and a portion of the manifold taken along the irregular sectional line 44 appearing in .Figure l and also looking in the direction indicated by the arrows.

An engine, which in thisinstance happens to'be of the Diesel type heretofore described, has a block .IIJ at the side of which is provided an air intake manifold ll having branches in the conventional manner for leading the air into the engine block. The top side of the manifold at one end carries,.rigidly bolted thereto, a cover casting orhousing l'2 which overlies the manifold and extends laterally thereof away from the engine block, as shown in Figure 1. This housing is provided with an opening 13 initstop side to which is secured an upstanding air intake pipe Mohaving the usual hood l5 through which the atmospheric air is drawn ina manner well understood in thisart. This housing 12 includes .the passage l6 formed by walls .l'l cast into the cover, which passage [6 extends in a manner so that .its ends are directed downwardly in two branches to continue the passage downwardly through a housing or enlarged portion I2 which is formed integral with the manifold l l and which is provided with conduits or passages l8 cored thereinto. A plate [9 is appropriately secured to the under side of the body l2, the same having appropriate openings therein in registration with the bifurcated passages 16, said plate serving as an attaching means whereby a pair of air cleaners 20 may be rigidly bolted to the under side of the plate 19 and "thus to the manifold, as shown in Figure 4, said'air cleaners 20 being disposed in side by side relation pendantly below and to one side of "the manifold H. The bifurcated passage it enters the top side of the air cleaners 20 centrally, as shown, and supplies atmospheric air to the clean ers, The air then comes up from the bottom of the cleaners along their outer peripheries to pass through the ports 2| into respective outer annular passages 22 providing in the housing l2 and surrounding the cleaners 2B.

The housing .12 also has a passage 23 at one side of the conduit H which passage 23 communicates with the passages '22 by means of ports 24. The passages 22 also communicate, through the intermediary of a conduit or passage 25, with a chamber extension 26 formed as an enlarged portion of the manifold H. This chamber 26 has a valve opening 2'! at its bottom and a valve opening 28 at its top. A two-way valve 29 is disposed in this chamber 26' to cooperate either with the lower opening 27 or the upper opening 28, said valve having a stem 30 appropriately mounted in an upright housing extension 3! which includes a cover 32. A spring pressed toggle linkage 33 is connected to the valve stem and serves to lock the valve stem by means of its over dead center snap action, to either a raised or lowered position cooperating with the respective valve openings 21 and 28. This toggle linkage is operated by means of a rockshaft 34 journaled in the casing extension 3| and said shaft 34 may be either automatically or manually rocked as desired. Below the chamber 26 and in communication with the opening valve 21 is a carbureter 35, there being a passage 36 provided in the manifold ll adjacent the chamber 26 and in communication with the carbureter air inlet, so that when the valve 29 is in its raised position the air may pass through the volatile mixture supply conduit of the port'36, through the carbureter 35, and through the valve opening 2'! to the manifold ll. When the valve 29 is in its lower position the manifold will not receive mixture through the carbureter as the air will bypass the carbureter and go directly through the chamber 26 into the manifold II.

In starting the particular Diesel engine disclosed, the valve 29 will be raised and held by the snap toggle linkage 33 to close off the port surrounded by the upper valve opening 28. Thereupon, the air from the atmosphere comes through the intake hood l5, down the pipe l4, through the branches of the passage-way I6 and into the air cleaners and down the center thereof in a manner well understood in the operation of these cleaners. Thence the air moves from the bottom of the cleaners upwardly along its cylindrical sides through the ports 2| and into the passage or chamber 22 from whence it passes through the passages 23 and 25 into the passage 35 to be drawn downwardly therefrom through the air inlet of the carbureter 35, the carbureter then supplying the air with its fuel mixture directly into the manifold H of the engine. After the engine has warmed up a sufiicient amount, the shaft 34 is rocked to reverse the poppet valve 29 to its down position against the seat 21 to cut off the carbureter from its supply of cleaned air. As a consequence, the cleaned air from the aircleaners 2|! passes from the passages 23 and 25 through the chamber 26 and thence directly into the manifold H for distribution to the cylinders .of the engine.

The mounting parts l2, l2 and I9 are all securely bolted together as shown by bolts which also serve to secure these mounting parts as a unit to the manifold.

It can now be seen that the manifold has been utilized in a manner to enable the direct mounting thereon of one or more air cleaners to achieve the advantages for such construction heretofore recited.

It is the intention to. cover all changes and modifications of the illustrative example herein disclosed which do not in material respects constitute departures from the spirit and scope of the invention which is defined in the appended claims. r

What is claimed is:

1. In a solid injection engine having an intake manifold formed with an air inlet, a carbureter having an air inlet, said carbureter being formed with a volatile mixture supply conduit communicating with the manifold, and valve means for selectively closing either the manifold air inlet or the mixture supply conduit, the combination with the manifold, of a housing portion associated therewith and having an air passage communicating with the air inlet thereof and with the carbureter air inlet, an air cleaner carried by the manifold and having an air outlet in communication with the air passage in the housing, and an air intake for the air cleaner.

2. In a. solid injection engine having an intake manifold formed with an air inlet, a carbureter having an air inlet, said carbureter being also formed with a volatile mixture supply conduit communicating with the manifold, and valve means for selectively closing either the manifold air inlet or the mixture supply conduit, the combination with the manifold, of an enlarged poi.- tion formed integral with the manifold and having a pair of ports therethrough, an air cleaner secured to the enlarged portion of the manifold and having an air inlet communicating with one of the aforesaid ports and having an air outlet communicating with the other port, a housing secured to the enlarged portion and having an air intake conduit communicating with the air cleaner inlet through the first port in the housing portion, said housing also having a passage connecting the air cleaner outlet through the second port in the enlarged portion to the manifold an carbureter air inlets. f

3. In an internal combustion engine, an intake manifold having an air inlet and formed with an enlarged portion extending substantially hori-f zontally therefrom, said enlarged portion of the manifold having at least two air passages extending therethrough and separate from said air inlet, a carbureter secured to the manifold and having a volatile mixture supply conduit com municating with the manifold, said carbureter being provided with an air inlet, valve means for selectively closing either the manifold air inlet or the mixture supply conduit, an air cleaner secured to the enlarged portion in communication with the aforesaid passages, and a housing secured to the enlarged portion and having an air-intake conduit and an air passage therein, said air intake conduit communicating with the air cleaner through one of the passages in the enlarged por-v tion and said air passage in the housing connecting the air inlet in the manifold and the air inlet in the carbureter with the air cleaner through the other passage in the enlarged portion. v

4. In an internal combustion engine, an intake manifold having an air inlet, said manifold hav ing at least two air passages extending therethrough and separate from said inlet, a carbu' reter secured to the manifold and having a volatile mixture supply conduit communicating with the manifold, said carbureter being provided with an air inlet, valve means for selectively closing either the manifold air inlet or the mix-I ture supply conduit, an air cleaner secured to the manifold in communication with said passages, and a housing secured to the manifold and having an air intake conduit and a passage therein, said air intake conduit communicating with the air cleaner through one of the aforesaid passages in the manifold and said passage in the housing connecting the aforesaid air inlet in the manifold and the air inlet in the carbureter with the air cleaner through the other passage in the manifold.

5. In an internal combustion engine, an intake manifold formed with substantially flat top and bottom surfaces and having an air inlet, said manifold having at least two air passages extending therethrough and separate from said inlet, a carbureter secured to the manifold and having a volatile mixture supply conduit communicating with the manifold, said carbureter being provided with an air inlet, valve means for selectively closing either the manifold air inlet or the mixture supply conduit, an air cleaner secured to the bottom surface of the manifold in communication with said passage and a housing secured to the top surface of the manifold and having an air intake conduit and a passage therein, said air intake conduit communicating with the air cleaner through one of the aforesaid passages in the manifold and said passage in the housing connecting the aforesaid air inlet in the manifold and the air inlet in the carbureter with the air cleaner through the other passage in the manifold.

6. An air intake system for an internal combustion engine, comprising an intake manifold having a branch connected to the engine and being formed with substantially flat surfaces disposed in different planes, a carbureter carried by the manifold and having an air inlet and a mixture outlet, said manifold being formed with a passage communicating with the carbureter air inlet and a second passage connecting the branch with the carbureter mixture outlet, an air cleaner having an air inlet and an air outlet and supported on one flat surface of the manifold, said manifold being further provided with air conduits therethrough in separate communication respectively with the air cleaner inlet and outlet, and a housing supported on the other flat surface of the manifold and including an air intake communicating through one conduit in the manifold with the air cleaner inlet, said housing also including a passage formed therein and connecting the air cleaner outlet to the carbureter air inlet through the other conduit and the aforesaid second named passage in the manifold.

7. In an internal combustion engine, an intake manifold having a branch connected to the engine and being formed with an integral enlarged portion extending substantially horizontally therefrom, said enlarged portion of the manifold being formed with at least two separate air conduits extending 'therethrough, an air cleaner secured to the enlarged portion and having an air inlet and an outlet in communication with the aforesaid conduits respectively, and a housing secured,

to the enlarged portion and having an air intake conduit communicating with the air cleaner through one of the aforesaid conduits in the manifold, said housing further having a passage in communication with the air cleaner outlet through the other conduit in the manifold and with the aforesaid manifold branch.

8. In an internal combustion engine, an intake manifold having a branch connected to the engine and being formed-with an integral enlarged portion extending substantially horizontally therefrom and having substantially fiat upper and lower surfaces, said enlarged portion of the manifold being formed with a pair of separate conduits extending therethrough and a passage therein substantially surrounding and separate from the aforesaid conduits, said enlarged portion being further formed with ports through the upper and lower walls thereof communicating with the last named passage, a pair of air cleaners secured to the lower surface of the enlarged portion, each air cleaner including an air inlet and an air outlet, each air inlet communicating respectively with one of said conduits and each air outlet communicating with the passage through the ports in the enlarged portion, and a housing secured to the upper surface of the enlarged portion, said housing being formed With a bifurcated air intake conduit communicating with the aircleaner inlets respectively through the conduits in the enlarged portion, said housing being further formed with a passage in communication with the air cleaner outlet through the aforesaid passage and ports and with the aforesaid manifold branch.

DAVID B. BAKER. CLIFFORD R. ROGERS. WILLIAM O. BECHMAN.

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