GB1471537A - Engine valve control - Google Patents
Engine valve controlInfo
- Publication number
- GB1471537A GB1471537A GB4200173A GB4200173A GB1471537A GB 1471537 A GB1471537 A GB 1471537A GB 4200173 A GB4200173 A GB 4200173A GB 4200173 A GB4200173 A GB 4200173A GB 1471537 A GB1471537 A GB 1471537A
- Authority
- GB
- United Kingdom
- Prior art keywords
- engine
- valve
- data
- counter
- outputs
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
- F01L9/21—Valve-gear or valve arrangements actuated non-mechanically by electric means actuated by solenoids
- F01L2009/2105—Valve-gear or valve arrangements actuated non-mechanically by electric means actuated by solenoids comprising two or more coils
- F01L2009/2109—The armature being articulated perpendicularly to the coils axes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
1471537 Controlling valve timing in IC engines R E VENARD 6 Dec 1974 [6 Sept 1973] 42001/73 Heading FIB [Also in Division G3] The timing of electromagnetically-actuated inlet or exhaust valves of I.C. engine cylinders is controlled by a programme which is operated according to a signal representing the value of various engine operating parameters e.g. engine speed, engine load, manifold pressure, throttle opening, ignition setting, exhaust gas condition, engine efficiency and engine power. A disc 1 with 360 spaced features 2 is connected to an engine crankshaft to rotate at ¢ crank-shaft speed. A transducer 3 detects the passage of features 2 and supplies a signal via a pulse shaper 9 to a pair of counters 12, 13. A feature 7 is detected by a transducer 5 at position 1, corresponding to top dead centre of one engine cylinder, and triggers a multi-vibrator 15 to signal a 3 millisecond counting time at counter 12 thus to form a 4-bit word indicative of crank-shaft speed. A feature 8, 30 degrees before top dead centre, generates a signal from transducer 6 to update the outputs of counter 12 and to reset counter 12. The counter 13 forms a 9-bit word indicative of instantaneous crank-shaft position and is reset by the signal from the transducer 5, as are outputs 26, 27. These outputs 26, 27 are supplied with data from inputs, 18, 19, 20, 21 concerning the engine operating parameters previously mentioned, which data is processed to form two 3-bit words at outputs 26, 27. These 3-bit words, together with the 4-bit word representing crank-shaft speed are addressed to read-only memories, 28, 29 for respectively generating 9-bit words for triggering opening and closing an engine valve, which are addressed firstly to data selectors 32, 33. Data for starting, braking or cruising is stored at 34 and supplied as 9-bit words to the data selectors 32, 33 which select data depending upon commands 35, 36 either from data store 34 or from read-only memories 28, 29. The selected data passes via outputs 37, 38 to comparators 39, 40 where it is compared with the 9-bit word from counter 13 indicative of instantaneous crank-shaft position. When this 9-bit word is the same as the selected data, a command signal is given to lines 45 or 46 to open or close an engine valve. The valve opening circuit may also include a loop 49, 50, 51, 52, 53, 54 to control the speed at which an inlet valve opens. Valve construction. A poppet valve 74 has a sleeve 72 at the end of its stem 73 into which sleeve protrude two armature ends 70, 71 of a pair of electromagnets 64, 65 having coils 62 to effect opening and coils 63 to effect closing of the valve 74.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4200173A GB1471537A (en) | 1974-12-06 | 1974-12-06 | Engine valve control |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4200173A GB1471537A (en) | 1974-12-06 | 1974-12-06 | Engine valve control |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1471537A true GB1471537A (en) | 1977-04-27 |
Family
ID=10422380
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4200173A Expired GB1471537A (en) | 1974-12-06 | 1974-12-06 | Engine valve control |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1471537A (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2461097A1 (en) * | 1979-07-06 | 1981-01-30 | Lucas Industries Ltd | CONTROL MECHANISM FOR DRIVING A MOBILE WORKPIECE, IN PARTICULAR AN INTERNAL COMBUSTION ENGINE FUEL VALVE |
GB2206646A (en) * | 1987-07-08 | 1989-01-11 | Gwendoline Innes | Engine valve gear |
EP0367552A1 (en) * | 1988-10-31 | 1990-05-09 | Isuzu Motors Limited | Valve control system for internal combustion engine |
EP0367553A1 (en) * | 1988-10-31 | 1990-05-09 | Isuzu Motors Limited | Valve control system for internal combustion engine |
EP0368675A1 (en) * | 1988-11-11 | 1990-05-16 | Isuzu Ceramics Research Institute Co., Ltd. | Electromagnetic valve control system |
US5115782A (en) * | 1989-12-09 | 1992-05-26 | Robert Bosch Gmbh | Method for controlling a spark-ignition engine without a throttle flap |
US5772179A (en) * | 1994-11-09 | 1998-06-30 | Aura Systems, Inc. | Hinged armature electromagnetically actuated valve |
WO1998042956A1 (en) * | 1997-03-24 | 1998-10-01 | Lsp Innovative Automotive Systems Gmbh | Internal combustion engine |
WO1998042957A1 (en) * | 1997-03-24 | 1998-10-01 | Lsp Innovative Automotive Systems Gmbh | Electromagnetic drive mechanism |
WO1998042960A1 (en) * | 1997-03-24 | 1998-10-01 | Lsp Innovative Automotive Systems Gmbh | Electromagnetic drive mechanism |
WO1998042955A3 (en) * | 1997-03-24 | 1999-03-04 | Lsp Innovative Automotive Sys | Electromagnetic control device |
WO2000029722A1 (en) * | 1998-11-14 | 2000-05-25 | Heinz Leiber | Electromagnetic actuator (actuating drive for a valve of an internal combustion engine) |
FR2792451A1 (en) * | 1999-04-15 | 2000-10-20 | Renault | Internal combustion (IC) engine inlet/outlet valve electromagnetic drive having flexible return with tongue section pivoting about axis and movement valve rod plane transformed. |
-
1974
- 1974-12-06 GB GB4200173A patent/GB1471537A/en not_active Expired
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2461097A1 (en) * | 1979-07-06 | 1981-01-30 | Lucas Industries Ltd | CONTROL MECHANISM FOR DRIVING A MOBILE WORKPIECE, IN PARTICULAR AN INTERNAL COMBUSTION ENGINE FUEL VALVE |
GB2206646A (en) * | 1987-07-08 | 1989-01-11 | Gwendoline Innes | Engine valve gear |
EP0367552A1 (en) * | 1988-10-31 | 1990-05-09 | Isuzu Motors Limited | Valve control system for internal combustion engine |
EP0367553A1 (en) * | 1988-10-31 | 1990-05-09 | Isuzu Motors Limited | Valve control system for internal combustion engine |
US5076222A (en) * | 1988-10-31 | 1991-12-31 | Isuzu Motors Limited | Valve control system for internal combustion engine |
EP0368675A1 (en) * | 1988-11-11 | 1990-05-16 | Isuzu Ceramics Research Institute Co., Ltd. | Electromagnetic valve control system |
US5115782A (en) * | 1989-12-09 | 1992-05-26 | Robert Bosch Gmbh | Method for controlling a spark-ignition engine without a throttle flap |
US5772179A (en) * | 1994-11-09 | 1998-06-30 | Aura Systems, Inc. | Hinged armature electromagnetically actuated valve |
WO1998042956A1 (en) * | 1997-03-24 | 1998-10-01 | Lsp Innovative Automotive Systems Gmbh | Internal combustion engine |
WO1998042957A1 (en) * | 1997-03-24 | 1998-10-01 | Lsp Innovative Automotive Systems Gmbh | Electromagnetic drive mechanism |
WO1998042960A1 (en) * | 1997-03-24 | 1998-10-01 | Lsp Innovative Automotive Systems Gmbh | Electromagnetic drive mechanism |
WO1998042955A3 (en) * | 1997-03-24 | 1999-03-04 | Lsp Innovative Automotive Sys | Electromagnetic control device |
US6262498B1 (en) | 1997-03-24 | 2001-07-17 | Heinz Leiber | Electromagnetic drive mechanism |
WO2000029722A1 (en) * | 1998-11-14 | 2000-05-25 | Heinz Leiber | Electromagnetic actuator (actuating drive for a valve of an internal combustion engine) |
FR2792451A1 (en) * | 1999-04-15 | 2000-10-20 | Renault | Internal combustion (IC) engine inlet/outlet valve electromagnetic drive having flexible return with tongue section pivoting about axis and movement valve rod plane transformed. |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |