US3646923A - Controlled floor jet engine exhaust recirculation - Google Patents
Controlled floor jet engine exhaust recirculation Download PDFInfo
- Publication number
- US3646923A US3646923A US30723A US3646923DA US3646923A US 3646923 A US3646923 A US 3646923A US 30723 A US30723 A US 30723A US 3646923D A US3646923D A US 3646923DA US 3646923 A US3646923 A US 3646923A
- Authority
- US
- United States
- Prior art keywords
- restriction
- throttle valve
- bypass duct
- hotspot
- inlet header
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/52—Systems for actuating EGR valves
- F02M26/63—Systems for actuating EGR valves the EGR valve being directly controlled by an operator
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
- F02M26/21—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system with EGR valves located at or near the connection to the intake system
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/41—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories characterised by the arrangement of the recirculation passage in relation to the engine, e.g. to cylinder heads, liners, spark plugs or manifolds; characterised by the arrangement of the recirculation passage in relation to specially adapted combustion chambers
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/52—Systems for actuating EGR valves
- F02M26/55—Systems for actuating EGR valves using vacuum actuators
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/52—Systems for actuating EGR valves
- F02M26/55—Systems for actuating EGR valves using vacuum actuators
- F02M26/58—Constructional details of the actuator; Mounting thereof
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/50—Arrangements or methods for preventing or reducing deposits, corrosion or wear caused by impurities
Definitions
- the bypass flow will be contained approximately within the limits of more than five percent and less than 25 percent, and usually about 15 percent of the total exhaust gases when the throttle is partially open and the effective pressure differential between the ends of the bypass duct corresponds to cruising or part throttle acceleration conditions.
- FIG. 2 is a similar view showing a modification.
- the left and right manifolds 17 are connected by a crossover conduit 19 which conducts the hot exhaust gases into heat exchange relationship with portion 20 of the wall of the inlet header 12.
- the wall portion 20 extends transversely to the direction of flow of the inlet mixture and is commonly referred to as the hotspot" which preheats the inlet mixture and enhances vaporization and mixing of liquid fuel droplets.
- a thermostatically controlled valve 21 in one header 17, FIG. 4 controls the flow of hot gases in the crossover conduit 19 to expedite heating of the hotspot 20 during the engine warmup period and to prevent overheating during operation of the engine under load.
- the structure described thus far may also be conventional.
- the fixed restricted orifice 23 is dimensioned to enable controlled recycling of a portion of the exhaust gases into the inlet header 11 to pass at least five percent and not more than 25 percent of the total exhaust gases, depending upon the specific engine and its operating conditions.
- effective reduction of nitrogen oxides in the exhaust is accomplished by recycling approximately 15 percent of the exhaust gases as aforesaid, preferably through several nozzles 22, each arranged in the manner of the nozzle shown where a multiple barrel carburetor is involved.
- the nozzle 22a is exposed to the full velocity pressure of the inlet fuel and air to inhibit exhaust recycling.
- the plunger 32 extends axially through a tubular guide 34 in closely fitting relationship and is secured at its upper end to a flexible diaphragm 35 that divides a housing 36 into upper and lower pressure chambers 37 and 38 respectively.
- the guide 34 screws into the exterior of bore 33, supports housing 36 at its outer end, and opens into the chamber 38.
- the latter also opens to the atmosphere via duct 39 which may communicate with a source of clean fresh air, as for example at the downstream side of the conventional carburetor air filter.
- duct 39 which may communicate with a source of clean fresh air, as for example at the downstream side of the conventional carburetor air filter.
- the chamber 37 is connected by means of a duct 41 with the customary vacuum advance duct 42 which connects the distributor vacuum advance port 43 with the customary vacuum actuated mechanism 44 for advancing or retarding the ignition spark distributor in accordance with varying engine operating conditions.
- the port 43 opens as is customary adjacent and at the upstream or high pressure side of the upper leading edge of the blade of throttle valve 14 when the latter is at its idle position shown. Accordingly when the throttle valve 14 is at either the idle position illustrated by solid lines or the wide open position illustrated by dotted lines, the resulting high pressure at port 43 substantially balances the atmospheric pressure in chamber 38 and enables spring 40 to urge plunger 32 downward to restrict or close orifice 23 and at the same time clear the latter of any deposits that might have formed during cold operation of the engine, for example.
- the nozzle 22b in other respects is substantially the same as nozzle 22 or 22a and is releaseably secured within the hotspot 20 coaxially with the inlet conduit 1].
- the latter is not shown to scale in the schematic drawings and will ordinarily be appreciably oversize with respect to the maximum diameter of the nozzle head 24 to enable installation of the nozzle 22b through the riser portion of the header 12 when the carburetor and throttle body are removed as above described.
- bypass duct having a comparatively short length on the order of magnitude of the wall thickness of said hotspot and extending directly through said hotspot and terminating within said inlet header proximate the surface of said hotspot exposed to said inletv mixture.
- bypass duct being located centrally with respect to the flow of said mixture downstream of said throttle valve, said plunger having a remote end out of said flow, and said plunger operating means engaging said remote end to operate said plunger.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
Description
Claims (15)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US3072370A | 1970-04-22 | 1970-04-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3646923A true US3646923A (en) | 1972-03-07 |
Family
ID=21855656
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US30723A Expired - Lifetime US3646923A (en) | 1970-04-22 | 1970-04-22 | Controlled floor jet engine exhaust recirculation |
Country Status (1)
Country | Link |
---|---|
US (1) | US3646923A (en) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3717130A (en) * | 1971-10-14 | 1973-02-20 | Gen Motors Corp | Intake manifold for exhaust gas recirculation and method of manufacture |
US3717131A (en) * | 1971-11-10 | 1973-02-20 | Gen Motors Corp | Intake manifold for exhaust gas recirculation |
US3738342A (en) * | 1971-12-27 | 1973-06-12 | J Lewakowski | Engine exhaust recirculation |
US3786793A (en) * | 1972-02-07 | 1974-01-22 | V Bohls | Emission control device for carburetor-equipped internal-combustion engines |
US3800766A (en) * | 1973-02-01 | 1974-04-02 | Ford Motor Co | Egr enrichment valve |
US3827412A (en) * | 1972-09-18 | 1974-08-06 | Chrysler Corp | Exhaust recirculation |
US3827414A (en) * | 1972-09-21 | 1974-08-06 | Chrysler Corp | Exhaust recirculation |
US3828746A (en) * | 1972-12-01 | 1974-08-13 | Colt Ind Operating Corp | Metering exhaust gas recirculation apparatus and system |
FR2228153A1 (en) * | 1973-05-02 | 1974-11-29 | Bosch Gmbh Robert | |
JPS49128131A (en) * | 1973-04-19 | 1974-12-07 | ||
US3972312A (en) * | 1974-02-01 | 1976-08-03 | Brooks Walker | Exhaust gas recirculation control by high port actuated diaphragm |
DE2553699A1 (en) * | 1974-11-30 | 1976-08-12 | Fuji Heavy Ind Ltd | COMBUSTION ENGINE FOR MOTOR VEHICLES |
US4041913A (en) * | 1975-02-22 | 1977-08-16 | Toyota Jidosha Kogyo Kabushiki Kaisha | Exhaust gas recirculating system |
US4048967A (en) * | 1972-08-25 | 1977-09-20 | Robert Bosch Gmbh | System for detoxicating exhaust gases |
US4492210A (en) * | 1983-02-18 | 1985-01-08 | Ballwin-Washington, Inc. | Serviceable valve construction |
GB2218734A (en) * | 1988-05-20 | 1989-11-22 | Ford Motor Co | I.C. engine intake and exhaust manifolds |
US5490488A (en) * | 1995-04-05 | 1996-02-13 | Ford Motor Company | Internal combustion engine intake manifold with integral EGR cooler and ported EGR flow passages |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB196333A (en) * | 1921-12-21 | 1923-04-23 | William Phillips Deppe | Improvements in or relating to internal combustion engines |
US1873174A (en) * | 1931-12-11 | 1932-08-23 | Delco Remy Corp | Ignition apparatus |
US2154417A (en) * | 1937-11-06 | 1939-04-18 | Harold D Church | Fuel control for internal combustion engines |
GB531637A (en) * | 1939-07-08 | 1941-01-08 | James Wardle Potts | Heating fuel-air mixture supply to internal combustion engines |
US2643647A (en) * | 1948-08-03 | 1953-06-30 | Seagram & Sons Inc | Multifuel carburetor |
US3465736A (en) * | 1967-10-09 | 1969-09-09 | Atlantic Richfield Co | Exhaust recycle control mechanism |
US3542003A (en) * | 1969-03-17 | 1970-11-24 | Chrystal Corp | Engine exhaust recirculation |
-
1970
- 1970-04-22 US US30723A patent/US3646923A/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB196333A (en) * | 1921-12-21 | 1923-04-23 | William Phillips Deppe | Improvements in or relating to internal combustion engines |
US1873174A (en) * | 1931-12-11 | 1932-08-23 | Delco Remy Corp | Ignition apparatus |
US2154417A (en) * | 1937-11-06 | 1939-04-18 | Harold D Church | Fuel control for internal combustion engines |
GB531637A (en) * | 1939-07-08 | 1941-01-08 | James Wardle Potts | Heating fuel-air mixture supply to internal combustion engines |
US2643647A (en) * | 1948-08-03 | 1953-06-30 | Seagram & Sons Inc | Multifuel carburetor |
US3465736A (en) * | 1967-10-09 | 1969-09-09 | Atlantic Richfield Co | Exhaust recycle control mechanism |
US3542003A (en) * | 1969-03-17 | 1970-11-24 | Chrystal Corp | Engine exhaust recirculation |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3717130A (en) * | 1971-10-14 | 1973-02-20 | Gen Motors Corp | Intake manifold for exhaust gas recirculation and method of manufacture |
US3717131A (en) * | 1971-11-10 | 1973-02-20 | Gen Motors Corp | Intake manifold for exhaust gas recirculation |
US3738342A (en) * | 1971-12-27 | 1973-06-12 | J Lewakowski | Engine exhaust recirculation |
US3786793A (en) * | 1972-02-07 | 1974-01-22 | V Bohls | Emission control device for carburetor-equipped internal-combustion engines |
US4048967A (en) * | 1972-08-25 | 1977-09-20 | Robert Bosch Gmbh | System for detoxicating exhaust gases |
US3827412A (en) * | 1972-09-18 | 1974-08-06 | Chrysler Corp | Exhaust recirculation |
US3827414A (en) * | 1972-09-21 | 1974-08-06 | Chrysler Corp | Exhaust recirculation |
US3828746A (en) * | 1972-12-01 | 1974-08-13 | Colt Ind Operating Corp | Metering exhaust gas recirculation apparatus and system |
US3800766A (en) * | 1973-02-01 | 1974-04-02 | Ford Motor Co | Egr enrichment valve |
JPS5212856B2 (en) * | 1973-04-19 | 1977-04-09 | ||
JPS49128131A (en) * | 1973-04-19 | 1974-12-07 | ||
FR2228153A1 (en) * | 1973-05-02 | 1974-11-29 | Bosch Gmbh Robert | |
US3972312A (en) * | 1974-02-01 | 1976-08-03 | Brooks Walker | Exhaust gas recirculation control by high port actuated diaphragm |
DE2553699A1 (en) * | 1974-11-30 | 1976-08-12 | Fuji Heavy Ind Ltd | COMBUSTION ENGINE FOR MOTOR VEHICLES |
US4041913A (en) * | 1975-02-22 | 1977-08-16 | Toyota Jidosha Kogyo Kabushiki Kaisha | Exhaust gas recirculating system |
US4492210A (en) * | 1983-02-18 | 1985-01-08 | Ballwin-Washington, Inc. | Serviceable valve construction |
GB2218734A (en) * | 1988-05-20 | 1989-11-22 | Ford Motor Co | I.C. engine intake and exhaust manifolds |
US5490488A (en) * | 1995-04-05 | 1996-02-13 | Ford Motor Company | Internal combustion engine intake manifold with integral EGR cooler and ported EGR flow passages |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: FIDELITY UNION TRUST COMPANY, TRUSTEE,NEW JERSEY Free format text: MORTGAGE;ASSIGNOR:CHRYSLER CORPORATION;REEL/FRAME:003832/0358 Effective date: 19810209 Owner name: FIDELITY UNION TRUST COMPANY, 765 BROAD ST., NEWAR Free format text: MORTGAGE;ASSIGNOR:CHRYSLER CORPORATION;REEL/FRAME:003832/0358 Effective date: 19810209 |
|
AS | Assignment |
Owner name: CHRYSLER CORPORATION, HIGHLAND PARK, MI 12000 LYNN Free format text: ASSIGNORS HEREBY REASSIGN, TRANSFER AND RELINQUISH THEIR ENTIRE INTEREST UNDER SAID INVENTIONS AND RELEASE THEIR SECURITY INTEREST.;ASSIGNORS:FIDELITY UNION BANK;ARNEBECK, WILLIAM, INDIVIDUAL TRUSTEE;REEL/FRAME:004063/0604 Effective date: 19820217 |
|
AS | Assignment |
Owner name: CHRYSLER CORPORATION Free format text: PARTES REASSIGN, TRANSFER AND RELINQUISH THEIR ENTIRE INTEREST UNDER SAID PATENTS ALSO RELEASE THEIR SECURITY INTEREST.;ASSIGNOR:MANUFACTURERS NATIONAL BANK OF DETROIL (CORPORATE TRUSTEE) AND BLACK DONALD E., (INDIVIDUAL TRUSTEE);REEL/FRAME:004355/0154 Effective date: 19840905 |