GB1350415A - Induction and exhaust systems for internal combustion engines - Google Patents

Induction and exhaust systems for internal combustion engines

Info

Publication number
GB1350415A
GB1350415A GB5741771A GB5741771A GB1350415A GB 1350415 A GB1350415 A GB 1350415A GB 5741771 A GB5741771 A GB 5741771A GB 5741771 A GB5741771 A GB 5741771A GB 1350415 A GB1350415 A GB 1350415A
Authority
GB
United Kingdom
Prior art keywords
switches
valve
engine
electromagnet
open
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
Application number
GB5741771A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to DE19702062067 priority Critical patent/DE2062067C3/de
Priority to DE19712143435 priority patent/DE2143435C3/de
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1350415A publication Critical patent/GB1350415A/en
Application status is Expired legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D41/00Electrical control of supply of combustible mixture or its constituents
    • F02D41/0025Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D41/0047Controlling exhaust gas recirculation [EGR]
    • F02D41/0065Specific aspects of external EGR control
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D41/00Electrical control of supply of combustible mixture or its constituents
    • F02D41/02Circuit arrangements for generating control signals
    • F02D41/18Circuit arrangements for generating control signals by measuring intake air flow
    • F02D41/182Circuit arrangements for generating control signals by measuring intake air flow for the control of a fuel injection device
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D9/00Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M1/00Carburettors with means for facilitating engine's starting or its idling below operational temperatures
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow
    • G01F1/05Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow by using mechanical effects
    • G01F1/20Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow by using mechanical effects by detection of dynamic effects of the fluid flow
    • G01F1/28Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow by using mechanical effects by detection of dynamic effects of the fluid flow by drag-force, e.g. vane type or impact flowmeter
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D2700/00Mechanical control of speed or power of a single cylinder piston engine
    • F02D2700/02Controlling by changing the air or fuel supply
    • F02D2700/0202Controlling by changing the air or fuel supply for engines working with gaseous fuel, including those working with an ignition liquid
    • F02D2700/0215Controlling the fuel supply
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2700/00Supplying, feeding or preparing air, fuel, fuel air mixtures or auxiliary fluids for a combustion engine; Use of exhaust gas; Compressors for piston engines
    • F02M2700/43Arrangements for supplying air, fuel or auxiliary fluids to a combustion space of mixture compressing engines working with liquid fuel
    • F02M2700/4302Arrangements for supplying air, fuel or auxiliary fluids to a combustion space of mixture compressing engines working with liquid fuel whereby air and fuel are sucked into the mixture conduit
    • F02M2700/434Heating or cooling devices
    • F02M2700/4342Heating devices
    • F02M2700/4345Heating devices by means of exhaust gases
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection
    • Y02A50/20Air quality improvement or preservation
    • Y02A50/23Emission reduction or control
    • Y02A50/232Catalytic converters
    • Y02A50/2322Catalytic converters for exhaust after-treatment of internal combustion engines in vehicles
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/40Engine management systems
    • Y02T10/47Exhaust feedback

Abstract

1350415 Regulating I C engine exhaust gas recirculation ROBERT BOSCH GmbH 10 Dec 1971 [17 Dec 1970 31 Aug 1971] 57417/71 Heading F1B In an I. C. engine in which exhaust gas can be returned to the induction pipe via a line 25 containing a shut-off valve 35, the shut-off valve is controlled by a pair of switches 73, 74 so as to be closed only when the engine is idling or is being operated at full or almost full load, the switches being operable for this purpose by being coupled to the throttle valve 13, or, as shown, coupled to a flap 65 which is held by a spring in the full-line position when the engine is idling and is pivoted on its spindle 67 by the increased air-flow which occurs when the engine speed is increased or the throttle valve 13 is opened. The switches 73, 74 are actuated by an arm 72 connected to the spindle 67, the switch 73 being held open as shown during idling and the switch 74 being held open at or near full load, both switches being closed under other conditions. The switches 73, 74, which are connected in series with one another, operate the shut-off valve 35 via a transistor and an electromagnet 37, the electromagnet being energized to open the valve either directly or through a further magnetic means when both switches are closed. The switches may be arranged to close instead of open under the respective conditions of idling and full or near full load, and are in this case connected to the electromagnet 37 via a diodetransistor NOR circuit, Fig. 2 (not shown), so that the electromagnet is energized when both switches are open. Since the switches are isolated from one another by the diodes, they may also be used for additional control operations e.g., for increasing the fuel supply at full load or for switching off the fuel supply under enginebraking conditions. To obviate the effect of contact bounce or other intermittent contact the NOR circuit may include a Schmitt trigger, Fig. 4 (not shown), preceded by a time delay network with a delay time of at least 0À1 second. Additional switches may be provided, for closing the valve 35 when the engine temperature is below 10‹C or in dependance on ambient or air intake temperature, engine or vehicle speed or the selection of a particular gear ratio. A potentiometer 69, operated by the flap 65, supplies a control voltage indicative of the airflow to the fuel injection control means 17. The switches 73, 74 may be replaced by electronic threshold valve switches controlled by the potentiometer 69.
GB5741771A 1970-12-17 1971-12-10 Induction and exhaust systems for internal combustion engines Expired GB1350415A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19702062067 DE2062067C3 (en) 1970-12-17 1970-12-17
DE19712143435 DE2143435C3 (en) 1971-08-31 1971-08-31

Publications (1)

Publication Number Publication Date
GB1350415A true GB1350415A (en) 1974-04-18

Family

ID=25760192

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5741771A Expired GB1350415A (en) 1970-12-17 1971-12-10 Induction and exhaust systems for internal combustion engines

Country Status (7)

Country Link
US (1) US3807376A (en)
JP (1) JPS55590B1 (en)
FR (1) FR2118786A5 (en)
GB (1) GB1350415A (en)
IT (1) IT944035B (en)
NL (1) NL7117285A (en)
SE (1) SE370758B (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3872846A (en) * 1972-04-24 1975-03-25 Bendix Corp Exhaust gas recirculation (EGR) internal combustion engine roughness control system
US4043304A (en) * 1973-05-02 1977-08-23 Robert Bosch Gmbh Fuel injection system for self-igniting internal combustion engines
US4075994A (en) * 1972-06-02 1978-02-28 Texaco Inc. Internal combustion engine operation utilizing exhaust gas recirculation
SE405273B (en) * 1973-05-02 1978-11-27 Bosch Gmbh Robert Brensleinsprutningsanordning for forbrenningsmotorer with its own tendning
US3915134A (en) * 1974-03-04 1975-10-28 Dana Corp Exhaust gas recirculation system for internal combustion engines
GB1516641A (en) * 1974-06-07 1978-07-05 Lucas Electrical Ltd Pollution control arrangements for engines
US4018198A (en) * 1974-08-07 1977-04-19 Rockwell International Corporation Exhaust gas recirculating system
JPS5264537A (en) * 1975-11-25 1977-05-28 Toyota Motor Corp Digital controller for egr gas amount of internal combustion engine
US4026256A (en) * 1976-05-10 1977-05-31 Chrysler Corporation Engine exhaust gas recirculation (EGR) control system
JPS5325729A (en) * 1976-08-23 1978-03-09 Nissan Motor Co Ltd Electronic exhaust gas re-circulation control system
US4214562A (en) * 1977-07-08 1980-07-29 Lucas Industries Limited Valve control arrangements
JPS5449421A (en) * 1977-09-27 1979-04-18 Toyota Motor Corp Controlling of run of internal combustion engine
JPS5926787B2 (en) * 1978-02-09 1984-06-30 Toyota Jidosha Kk
US4333438A (en) * 1978-03-22 1982-06-08 Automobiles Peugeot Device for recycling exhaust gases for a diesel engine
US4248193A (en) * 1978-09-01 1981-02-03 Ford Motor Company Fuel injection fuel control system
US4208995A (en) * 1978-12-06 1980-06-24 Ford Motor Company Fuel injection fuel flow control system
FR2653493B1 (en) * 1989-10-25 1991-12-20 Peugeot Improving the efficiency of a catalyst for diesel engine supercharges.
US8490606B2 (en) * 2011-03-03 2013-07-23 New Vision Fuel Technology, Inc. Passive re-induction apparatus, system, and method for recirculating exhaust gas in gasoline and diesel engines
US20110214648A1 (en) * 2011-03-03 2011-09-08 New Vision Fuel Technology, Inc. Passive re-induction apparatus, system, and method for recirculating exhaust gas in gasoline and diesel engines
US8276571B2 (en) 2011-03-03 2012-10-02 New Vision Fuel Technology, Inc. Passive re-induction apparatus, system, and method for recirculating exhaust gas in gasoline and diesel engines
US9004047B2 (en) * 2013-03-27 2015-04-14 GM Global Technology Operations LLC Engine assembly having a baffle in the intake manifold
US9879621B2 (en) * 2015-12-08 2018-01-30 Ford Global Technologies, Llc Fuel vapor flow based on road conditions

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR830262A (en) * 1937-12-02 1938-07-25 Device recuperator unburned gas in engines
US3237615A (en) * 1962-11-13 1966-03-01 Richfield Oil Corp Exhaust recycle system
GB1270516A (en) * 1969-01-20 1972-04-12 Nissan Motor Induction system for motor vehicles
US3605709A (en) * 1969-03-19 1971-09-20 Nissan Motor Vehicular air-pollution preventive system
US3636934A (en) * 1969-03-22 1972-01-25 Nissan Motor Vehicular air-pollution preventive system
US3646764A (en) * 1969-05-30 1972-03-07 Nissan Motor Air pollution preventive system for motor vehicles
US3643640A (en) * 1970-02-12 1972-02-22 Exxon Research Engineering Co Low-polluting internal combustion engine wherein exhaust gases are recycled in a controlled pattern
US3662722A (en) * 1970-04-22 1972-05-16 Chrysler Corp Cool exhaust recycling

Also Published As

Publication number Publication date
FR2118786A5 (en) 1972-07-28
US3807376A (en) 1974-04-30
NL7117285A (en) 1972-06-20
JPS55590B1 (en) 1980-01-09
IT944035B (en) 1973-04-20
SE370758B (en) 1974-10-28

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee