US3095866A - Carburetor air filter detecting device - Google Patents
Carburetor air filter detecting device Download PDFInfo
- Publication number
- US3095866A US3095866A US45212A US4521260A US3095866A US 3095866 A US3095866 A US 3095866A US 45212 A US45212 A US 45212A US 4521260 A US4521260 A US 4521260A US 3095866 A US3095866 A US 3095866A
- Authority
- US
- United States
- Prior art keywords
- air
- reservoir
- passage
- filter
- lubricant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/02—Air cleaners
- F02M35/08—Air cleaners with means for removing dust, particles or liquids from cleaners; with means for indicating clogging; with by-pass means; Regeneration of cleaners
- F02M35/09—Clogging indicators ; Diagnosis or testing of air cleaners
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S116/00—Signals and indicators
- Y10S116/25—Air filter condition indicator
Definitions
- the present invention relates generally to a device used in conjunction with air filters of the kind used to filter the air inducted into an internal combusion engine. More particularly, the present invention relates to a device which visually signals restriction of air flow through an air filter and which is simultaneously or concurrently adapted to provide top cylinder lubrication when the air fiow through the air filter is restricted.
- Air filters are used on internal combustion engines to remove the dust and abrasive material suspended in the atmosphere which could be drawn into the combustion chamber with attendant damage to the cylinder walls.
- the inducted air permeates the filter without restriction.
- air flow is restricted.
- an excessively rich :fuel/ air mixture is drawn into the cornbustion chamber.
- Such a mixture not only greatly increases fuel consumption, but also causes severe damage to the cylinder walls, pistons and piston rings by inspiration of unvaporized fuel which washes the lubricant therefrom.
- the restriction of air flow through the carburetor air filter creates a partial vacuum in the central chamber of the air filter.
- This partial vacuum draws oil out of a conveniently placed reservoir which mixes with the intake air and is drawn into the engines combustion chamber.
- the lowered oil level in the reservoir indicates an accumulation of foreign material in the filter, and the oil supplied to the engine acts as a lubricant.
- this oil drawn into the combustion chamber burns, it causes the exhaust to have a characteristic blue-gray appearance which is also a visual signal of the clogged condition of the air filter.
- FIG. 1 is a schematic cross section of a detecting device, according to the invention, operatively connected to a carburetor air filter; and,
- FIG. 2 is a plan View taken substantially on line 22 of FIG. 1,
- the detecting device comp-rises a preferably transparent container 11 which serves as a reservoir for a volume of oil, indicated at 12.
- a support bracket 13 receives container 11 and is secured to the fire wall 14 of an automobile engine compartment (not shown) as by metal screws 15.
- a level line 16 is preferably provided on container 11 to indicate the standard or full condition of the oil reservoir.
- a sealing Washer 18 is provided between container 11 and cap 19 to prevent accidental loss or spillage of oil from the reservoir 12.
- Cap 19 may be demountably secured to the upper portion of container 11, as by threads 20.
- a vent 21 is provided through cap .19 to provide free communication of atmospheric pressure to the surface of oil in the reservoir.
- the vent Z1 is provided with a crooked portion 22 which prevents the admission of water or dirt through the vent 21.
- Portion 22 should be sufiiciently elevated above the upper surface 16- of oil in the reservoir to prevent loss of oil by normal sloshing due to the motion of the vehicle on which the device 10 is mounted.
- a feed pipe 23 Also extending through cap 19 is a feed pipe 23.
- the lower end 24 of feed pipe 23 is positioned in proximity to or adjacent the lower portion of the reservoir container 11, and the upper end 2.5 extends through cap 19 sulficiently to permit attachment of connecting tube 26 thereto.
- the other end of tube 26 is similarly attached to an insert pipe 28 which communicates with the central chamber 29 of a standard carburetor air filter, indicated generally by the numeral 3t], which is afiixed to the intake passage 31 of a carburetor (not shown).
- the air entering the filter intake 32 must pass through filter element 33 before entering chamber 29 for free flow to the carburetor intake passage 31.
- Connecting tube 26 which is preferably transparent, may connect directly from container 11 to filter 30 or it may be positioned such that a portion, at least, is visible from the drivers seat, for a purpose hereinafter more fully described.
- container 11 be positioned so that the level line 16 is below the level of the end of insert pipe 28 within chamber 29.
- the actual level difrerential is selected according to the viscosity of the oil used in the reservoir, the diameter of the connecting tube 26 and feed pipe 24, the compression of the engine cylinders, and the normal air flow resistance of the type filter unit 33 utilized.
- the level differential i.e., the level of the container 11 with respect to filter 30
- the level differential is such that the negative pressure in chamber 29 is not sufliciently low to permit atmospheric pressure to force the oil in the reservoir through teed pipe 23 and into tube 2.6.
- the filter unit 33 accumulates foreign material strained irom the air it affords more and more resistance to the passage of air therethrough.
- the pressure in chamber 29 is lowered and the atmospheric pressure forces the oil in the reservoir upwardly through feed pipe 23 and tube 26 into chamber 29 where it mixes with the air drawn into the combustion chamber.
- the oil relubricates the cylinder walls to counter the lubricant washing effect of the overly rich fuel/air mixture resulting from the decreased availability of intake air.
- the oil also burns to give a characteristic blue-gray color to the exhaust.
- Constructing tube 26 of a transparent material permits visual observation of the fiow or the extent to which oil from the reservoir has been drawn toward filter 30 when the engine is running.
- Providing a level line 16 on container 11 permits one to observe whether any of the oil has been drawn into the filter 30, even after the engine has bee-n turned off.
- an air filter detection device comprising, a liquid lubricant containing reservoir, and conduit means communicating between said reservoir and said central 1 cavity, said reservoir positioned below the communicative connection of said conduit to said central cavity in order that said conduit means will draw said lubricant from said reservoir into said passage in response, to the partial vacuum within said central passage when there is a restriction ofair flow through said filter unit.
- an air filter detection device comprising, a vented liquid lubricant containing reservoir, a length of conduit means, the first end of said conduit means communicating with said central cavity, the second end of said conduit means communicating with said reservoir to drain the lubricant therefrom,' said second end of said conduit means being on a lower level than said first end, said conduit means utilizing the partial vacuum within said central'cavity to draw said lubricant from said reservoir and into said passage.
- an air filter detection device comprising, a reservoir, said reservoir being filled with liquid lubricant to a preselected IeVeL'the level of said lubricant being visible exteriorly of said container, a vent for continuous atmospheric communication with that portion of the container above the level of said lubricant, a feed pipe exteriorly, of said lubricant reservoir extending interiorly of said lubricant and adapted to drain said lubricant, a length of transparentconduit means, the first end of said conduit means communicating withtsaid central cavity, thesecond end of said conduit means communicating with said feed pipe exteriorly or said lubricant, the level of said lubricant in said reservoir being lower than the level of the first end of said conduit means, said conduit means utilizing the partial vacuum within said central cavity to draw said lubricant from said reservoir and into said
- an air filter detection device comprising, a mounting bracket, a transparent container received in said bracket and adapted to serve as a liquid lubricant reservoir, a level line on said container, a cap detachahly secured to the upper portionot said container, a crooked vent extending through said cap for continuous atmospheric communication with the interior of said container, a feed pipeex'tending through said cap, the upper end of said pipe terminating exteriorly of said cap, the lower end of said pipe extending below said level line and terminating in proximity to' the lower portion of said container, a length of transparent conduit means,
- conduit means utilizing the partial vacuum within said central cavity to draw said lubricant from said reservoir and into said passage.
Description
y 1963 H. E. DIQNNE 3,095,866
CARBURETOR AIR FILTER DETECTING DEVICE Filed July 25. 1960 (\l INVENTOR. HENRY E. DION NE 63 ATTORNEYS United States Patent 3,095,866 CARBURETOR AIR FTLTER DETECTING DEVICE Henry E. Dionne, 22 Hilton Road, Mount Holly, NJ. Filed July 25, 1960, Ser. No. 45,212 5 Claims. (Cl. 123-196) The present invention relates generally to a device used in conjunction with air filters of the kind used to filter the air inducted into an internal combusion engine. More particularly, the present invention relates to a device which visually signals restriction of air flow through an air filter and which is simultaneously or concurrently adapted to provide top cylinder lubrication when the air fiow through the air filter is restricted.
Air filters are used on internal combustion engines to remove the dust and abrasive material suspended in the atmosphere which could be drawn into the combustion chamber with attendant damage to the cylinder walls. The inducted air permeates the filter without restriction. However, as the impurities accumulate in the filter, air flow is restricted. By thus impeding the air flow, an excessively rich :fuel/ air mixture is drawn into the cornbustion chamber. Such a mixture not only greatly increases fuel consumption, but also causes severe damage to the cylinder walls, pistons and piston rings by inspiration of unvaporized fuel which washes the lubricant therefrom.
It is therefore the primary object of the present invention to provide a carburetor air filter detecting device which will visually signal the restriction of air flow through an air filter and which will supply a liquid lubricant with the combustion mixture when the air flow is restricted.
It is a further object of the present invention to provide a carburetor 'air filter detecting device of simplified construction which will be inexpensive to manufacture.
These and other objects which will become apparent to the reader of the following specification are accomplished by means hereinafter described and claimed.
One preferred embodiment is shown by way of example in the accompanying drawings and hereinafter described in detail without atempting to show all the various forms and modifications in which the invention might be embodied; the invention being measured by the ap pended claims and not by the details of the specification.
In the present invention the restriction of air flow through the carburetor air filter creates a partial vacuum in the central chamber of the air filter. This partial vacuum draws oil out of a conveniently placed reservoir which mixes with the intake air and is drawn into the engines combustion chamber. The lowered oil level in the reservoir indicates an accumulation of foreign material in the filter, and the oil supplied to the engine acts as a lubricant. Furthermore, as part of this oil drawn into the combustion chamber burns, it causes the exhaust to have a characteristic blue-gray appearance which is also a visual signal of the clogged condition of the air filter.
Referring to the drawings:
FIG. 1 is a schematic cross section of a detecting device, according to the invention, operatively connected to a carburetor air filter; and,
FIG. 2 is a plan View taken substantially on line 22 of FIG. 1,
The detecting device, indicated generally by the numeral 10, comp-rises a preferably transparent container 11 which serves as a reservoir for a volume of oil, indicated at 12. A support bracket 13 receives container 11 and is secured to the fire wall 14 of an automobile engine compartment (not shown) as by metal screws 15. A level line 16 is preferably provided on container 11 to indicate the standard or full condition of the oil reservoir.
3,@95,8fi6 Patented July 2, 1&6?
ice
A sealing Washer 18 is provided between container 11 and cap 19 to prevent accidental loss or spillage of oil from the reservoir 12. Cap 19 may be demountably secured to the upper portion of container 11, as by threads 20. A vent 21 is provided through cap .19 to provide free communication of atmospheric pressure to the surface of oil in the reservoir.
The vent Z1 is provided with a crooked portion 22 which prevents the admission of water or dirt through the vent 21. Portion 22 should be sufiiciently elevated above the upper surface 16- of oil in the reservoir to prevent loss of oil by normal sloshing due to the motion of the vehicle on which the device 10 is mounted.
Also extending through cap 19 is a feed pipe 23. The lower end 24 of feed pipe 23 is positioned in proximity to or adjacent the lower portion of the reservoir container 11, and the upper end 2.5 extends through cap 19 sulficiently to permit attachment of connecting tube 26 thereto. The other end of tube 26 is similarly attached to an insert pipe 28 which communicates with the central chamber 29 of a standard carburetor air filter, indicated generally by the numeral 3t], which is afiixed to the intake passage 31 of a carburetor (not shown). As is shown by the arrows, the air entering the filter intake 32 must pass through filter element 33 before entering chamber 29 for free flow to the carburetor intake passage 31.
Connecting tube 26, which is preferably transparent, may connect directly from container 11 to filter 30 or it may be positioned such that a portion, at least, is visible from the drivers seat, for a purpose hereinafter more fully described.
It is mandatory that container 11 be positioned so that the level line 16 is below the level of the end of insert pipe 28 within chamber 29. The actual level difrerential, however, is selected according to the viscosity of the oil used in the reservoir, the diameter of the connecting tube 26 and feed pipe 24, the compression of the engine cylinders, and the normal air flow resistance of the type filter unit 33 utilized.
Under normal operation, the suction stroke of the pistons draws air through the filter 30. The level differential (i.e., the level of the container 11 with respect to filter 30) is such that the negative pressure in chamber 29 is not sufliciently low to permit atmospheric pressure to force the oil in the reservoir through teed pipe 23 and into tube 2.6. However, as the filter unit 33 accumulates foreign material strained irom the air it affords more and more resistance to the passage of air therethrough. By so impeding the air flow, the pressure in chamber 29 is lowered and the atmospheric pressure forces the oil in the reservoir upwardly through feed pipe 23 and tube 26 into chamber 29 where it mixes with the air drawn into the combustion chamber. The oil relubricates the cylinder walls to counter the lubricant washing effect of the overly rich fuel/air mixture resulting from the decreased availability of intake air. The oil also burns to give a characteristic blue-gray color to the exhaust.
Constructing tube 26 of a transparent material permits visual observation of the fiow or the extent to which oil from the reservoir has been drawn toward filter 30 when the engine is running. Providing a level line 16 on container 11 permits one to observe whether any of the oil has been drawn into the filter 30, even after the engine has bee-n turned off.
What is claimed is:
1. In combination with an engine having an air induction passage and a filter unit having a central cavity connected to said passage through which air flows to said engine, an air filter detection device comprising, a liquid lubricant containing reservoir, and conduit means communicating between said reservoir and said central 1 cavity, said reservoir positioned below the communicative connection of said conduit to said central cavity in order that said conduit means will draw said lubricant from said reservoir into said passage in response, to the partial vacuum within said central passage when there is a restriction ofair flow through said filter unit.
.2; In combination with an engine having an air induc tion passage and *a filter unit having acentral cavity connected to said passage through which air flows to said engine, an air filter detection device comprising, a vented liquid lubricant containing reservoir, a length of conduit means, the first end of said conduit means communicating with said central cavity, the second end of said conduit means communicating with said reservoir to drain the lubricant therefrom,' said second end of said conduit means being on a lower level than said first end, said conduit means utilizing the partial vacuum within said central'cavity to draw said lubricant from said reservoir and into said passage.
3. A device of the type described in claim 2, said conduit means-being transparent V 4. In combination with an engine having an air induction passage and a filter unit having a central cavity connected to said passage through which air flows to said engine, an air filter detection device comprising, a reservoir, said reservoir being filled with liquid lubricant to a preselected IeVeL'the level of said lubricant being visible exteriorly of said container, a vent for continuous atmospheric communication with that portion of the container above the level of said lubricant, a feed pipe exteriorly, of said lubricant reservoir extending interiorly of said lubricant and adapted to drain said lubricant, a length of transparentconduit means, the first end of said conduit means communicating withtsaid central cavity, thesecond end of said conduit means communicating with said feed pipe exteriorly or said lubricant, the level of said lubricant in said reservoir being lower than the level of the first end of said conduit means, said conduit means utilizing the partial vacuum within said central cavity to draw said lubricant from said reservoir and into said passage.
5. In combination with an engine having an air induction passage and a filter unit having a central cavity connected to said passage through which air flows to said engine, an air filter detection device comprising, a mounting bracket, a transparent container received in said bracket and adapted to serve as a liquid lubricant reservoir, a level line on said container, a cap detachahly secured to the upper portionot said container, a crooked vent extending through said cap for continuous atmospheric communication with the interior of said container, a feed pipeex'tending through said cap, the upper end of said pipe terminating exteriorly of said cap, the lower end of said pipe extending below said level line and terminating in proximity to' the lower portion of said container, a length of transparent conduit means,
the first end of said conduit means communicating with said central cavity, the second end of said conduit means communicating with said feed pipe exteriorly of said cap, the level of said level line being lower than the first end of said conduit means, said conduit means utilizing the partial vacuum within said central cavity to draw said lubricant from said reservoir and into said passage.
References Cited in the file of this patent UNITED STATES PATENTS
Claims (1)
1. IN COMBINATION WITH AN ENGINE HAVING AN AIR INDUCTION PASSAGE AND A FILTER UNIT HAVING A CENTRAL CAVITY CONNECTED TO SAID PASSAGE THROUGH WHICH AIR FLOWS TO SAID ENGINE, AN AIR FILTER DETECTION DEVICE COMPRISING, A LIQUID LUBRICANT CONTAINING RESERVOIR, AND CONDUIT MEANS COMMUNICATING BETWEEN SAID RESERVOIR AND SAID CENTRAL CAVITY, SAID RESERVOIR POSITIONED BELOW THE COMMUNICATIVE CONNECTION OF SAID CONDUIT TO SAID CENTRAL CAVITY IN ORDER THAT SAID CONDUIT MEANS WILL DRAW SAID LUBRICANT FROM SAID RESERVOIR INTO SAID PASSAGE IN RESPONSE TO THE PARTIAL VACUUM WITHIN SAID CENTRAL PASSAGE WHEN THERE IS A RESTRICTION OF AIR FLOW THROUGH SAID FILTER UNIT.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US45212A US3095866A (en) | 1960-07-25 | 1960-07-25 | Carburetor air filter detecting device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US45212A US3095866A (en) | 1960-07-25 | 1960-07-25 | Carburetor air filter detecting device |
Publications (1)
Publication Number | Publication Date |
---|---|
US3095866A true US3095866A (en) | 1963-07-02 |
Family
ID=21936624
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US45212A Expired - Lifetime US3095866A (en) | 1960-07-25 | 1960-07-25 | Carburetor air filter detecting device |
Country Status (1)
Country | Link |
---|---|
US (1) | US3095866A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3172746A (en) * | 1965-03-09 | Filter condition indicator | ||
US3338564A (en) * | 1966-10-24 | 1967-08-29 | John C Roeder | Solvent applicator for cleaning automotive carburetors |
US3567130A (en) * | 1969-08-07 | 1971-03-02 | Wix Corp | Diffuser |
US4745896A (en) * | 1987-10-05 | 1988-05-24 | Schultz Robert A | Upper cylinder area lubrication system |
US5587071A (en) * | 1993-04-13 | 1996-12-24 | Facet International, Inc. | Replaceable element fluid filter |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1857512A (en) * | 1930-11-18 | 1932-05-10 | Ralph D Matteson | Air cleaning and moistening device |
US2108556A (en) * | 1937-08-31 | 1938-02-15 | William G Hardt | Air humidifier for a combustion engine |
US2537495A (en) * | 1947-08-13 | 1951-01-09 | Lloyd D Gilbert | Air humidifier for internalcombustion engines |
US2627934A (en) * | 1949-08-11 | 1953-02-10 | Emanuel A Martinek | Air moistening and filtering device |
US2655894A (en) * | 1951-04-21 | 1953-10-20 | Fram Corp | Gas filter indicator |
FR1107966A (en) * | 1953-06-22 | 1956-01-06 | Method and device for introducing a liquid such as a lubricant into the cylinders of engines | |
US2816622A (en) * | 1956-11-13 | 1957-12-17 | Fred W Weaver | Humidifier and dust collector for internal combustion engines |
-
1960
- 1960-07-25 US US45212A patent/US3095866A/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1857512A (en) * | 1930-11-18 | 1932-05-10 | Ralph D Matteson | Air cleaning and moistening device |
US2108556A (en) * | 1937-08-31 | 1938-02-15 | William G Hardt | Air humidifier for a combustion engine |
US2537495A (en) * | 1947-08-13 | 1951-01-09 | Lloyd D Gilbert | Air humidifier for internalcombustion engines |
US2627934A (en) * | 1949-08-11 | 1953-02-10 | Emanuel A Martinek | Air moistening and filtering device |
US2655894A (en) * | 1951-04-21 | 1953-10-20 | Fram Corp | Gas filter indicator |
FR1107966A (en) * | 1953-06-22 | 1956-01-06 | Method and device for introducing a liquid such as a lubricant into the cylinders of engines | |
US2816622A (en) * | 1956-11-13 | 1957-12-17 | Fred W Weaver | Humidifier and dust collector for internal combustion engines |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3172746A (en) * | 1965-03-09 | Filter condition indicator | ||
US3338564A (en) * | 1966-10-24 | 1967-08-29 | John C Roeder | Solvent applicator for cleaning automotive carburetors |
US3567130A (en) * | 1969-08-07 | 1971-03-02 | Wix Corp | Diffuser |
US4745896A (en) * | 1987-10-05 | 1988-05-24 | Schultz Robert A | Upper cylinder area lubrication system |
US5587071A (en) * | 1993-04-13 | 1996-12-24 | Facet International, Inc. | Replaceable element fluid filter |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3509967A (en) | System for treating crankcase vapors in automotive engines | |
US3095866A (en) | Carburetor air filter detecting device | |
US4979482A (en) | Fuel reservoir | |
US4162660A (en) | Dirty air filter indicator | |
US3059628A (en) | Gas and fume disposal system for internal combustion engines | |
US2172522A (en) | Safety breather for aircraft | |
US3880130A (en) | Control valve | |
US4166382A (en) | Auto economy gauge | |
US1889137A (en) | Method and apparatus for lubricating and operating internal combustion engines | |
US3166062A (en) | Smog device for automobile engines | |
US3473299A (en) | Internal-combustion engine air filtering apparatus | |
US1718800A (en) | Oil purifier and gas separator for internal-combustion engines | |
US2118633A (en) | Internal combustion engine | |
US2884950A (en) | Crankcase ventilator | |
US3177858A (en) | Anti-fouling of blowby return systems | |
US2104729A (en) | Automatic centralized lubricating installation | |
US1926741A (en) | Oil purifying apparatus | |
US1823796A (en) | Attachment for internal combustion engines | |
US1960715A (en) | Lubricator | |
US2570898A (en) | Nonfreezing oil system | |
CN206299499U (en) | Automobile refined filtration electric fuel pump assembly | |
KR980001120A (en) | Fuel saving device for automobile liquid fuel tank | |
US2215697A (en) | Carburetor | |
US2312604A (en) | Device for conditioning oil | |
US3179097A (en) | Vent valve for preventing excess crankcase pressure or vacuum |