A four stroke diesel engine combined with a supercharger is operable to supply varying amounts of air to the engine responsive to the load on the engine. The supercharger has a pair of rotors driven by the engine operable to move air to the engine. Gates associated with the rotors control the amount
A four stroke diesel engine combined with a supercharger is operable to supply varying amounts of air to the engine responsive to the load on the engine. The supercharger has a pair of rotors driven by the engine operable to move air to the engine. Gates associated with the rotors control the amount of air and pressure of the air moved by the rotors to the diesel engine.
대표청구항▼
The invention claimed is: 1. A method for supplying electric power to an electric load comprising: operating a diesel engine having an air intake manifold and at least one combustion chamber for receiving air from the air intake manifold, supplying electric power to an electric load with an electri
The invention claimed is: 1. A method for supplying electric power to an electric load comprising: operating a diesel engine having an air intake manifold and at least one combustion chamber for receiving air from the air intake manifold, supplying electric power to an electric load with an electric generator, drivably connecting the diesel engine to the electric generator whereby the diesel engine operates the electric generator to supply electric power to an electric load and the electric generator imparts a load on the diesel engine, sensing the load on the diesel engine and providing a signal representing the sensed load on the diesel engine, delivering the sensed signal to a controller operable to provide output command signals, supplying air to the air intake manifold of the diesel engine with a supercharger, driving the supercharger with the diesel engine, varying the volume and pressure of the air supplied by the supercharger to the air intake manifold of the diesel engine responsive to the command signals from the controller of the load on the diesel engine to boost the rate of the flow of air delivered to the air intake manifold of the diesel engine above the naturally aspirated rate of the flow of air to the air intake manifold of the diesel engine, and introducing combustible fuel into the combustion chamber of the diesel engine responsive to the command signals from the controller corresponding to the boost of the rate of the flow of air delivered to the air intake manifold of the diesel engine to maintain a relatively constant air to fuel ratio in the combustion chamber of the diesel engine. 2. The method of claim 1 wherein: the air amount and pressure of air moved to the air intake manifold of the diesel engine is generated by operating a positive air displacement device. 3. The method of claim 2 including: adjusting the operation of the positive air displacement device to vary the amount of air and pressure of air moved to the air intake manifold of the diesel engine responsive to the command signals from the controller of the load on the diesel engine. 4. The method of claim 1 including: increasing the amount and pressure of air supplied to the diesel engine to cold start the engine. 5. The method of claim 1 wherein: the air amount and pressure of air moved to the diesel engine is generated by operation of a positive air displacement device and controlling the positive air displacement device with the command output signals from the controller to provide maximum amount of air and air pressure to the diesel engine during cold start of the engine. 6. A method for supplying power to an apparatus comprising: operating an internal combustion engine having an air intake manifold and at least one combustion chamber for receiving air from the air intake manifold, drivably connecting the internal combustion engine to the apparatus whereby the internal combustion engine powers the apparatus and the apparatus imparts a load on the internal combustion engine, sensing the load on the diesel engine and providing a signal representing the load on the diesel engine, delivering the sensed signal to a controller operable to provide output command signals, supplying air to the air intake manifold of the internal combustion engine with a supercharger, driving the supercharger with the internal combustion engine, varying the volume and pressure of the air supplied by the supercharger to the air intake manifold of the internal combustion engine responsive to the command signals from the controller of the load on the internal combustion engine to boost the rate of the flow of air delivered to the air intake manifold of the internal combustion engine above the naturally aspirated rate of the flow of air to the air intake manifold of the internal combustion engine, and introducing combustible fuel into the combustion chamber of the internal combustion engine responsive to the command signals from the controller corresponding to the boost of the rate of the flow of air delivered to the air intake manifold of the internal combustion engine to maintain a relatively constant air to fuel ratio in the combustion chamber of the internal combustion engine. 7. The method of claim 6 wherein: the air delivered to the intake manifold of the internal combustion engine is generated by operation of a positive air displacement device. 8. The method of claim 7 wherein: the amount of air delivered to the intake manifold of the internal combustion engine is controlled by adjusting the operation of the positive air displacement device to vary the amount of air delivered to the intake manifold of the internal combustion engine responsive to the load on the internal combustion engine. 9. In combination: a diesel engine having an air intake manifold and at least one combination chamber for receiving air from the air intake manifold, an apparatus operated by the diesel engine, a first power transfer device drivably connecting the diesel engine to the apparatus whereby the diesel engine operates the apparatus and the apparatus imparts a load on the diesel engine, a supercharger for supplying air to the air intake manifold of the diesel engine, a second power transfer device drivably connecting the supercharger to the diesel engine whereby the diesel engine operates the supercharger, a sensor for sensing the load on the diesel engine and providing a signal representing the sensed load on the diesel engine, a controller for accommodating the signal from the sensor and providing output command signals, said supercharger having a controller apparatus for varying the volume and pressure of air supplied to the air intake manifold of the diesel engine responsive to the command signals from the controller representing the sensed load on the diesel engine to boost the rate of the flow of air delivered to the air intake manifold of the diesel engine above the naturally aspirated rate of the flow of air to the air intake manifold of the diesel engine, said control apparatus including cooperating rotors and a plurality of gates movable between in and out positions relative to the rotors to selectively decrease the volume of air supplied to the diesel engine when the gates are in their out positions, actuators to selectively move the gates between said out and in positions, each actuator including solenoids connected to the gates, said controller actuating the solenoids responsive to the signal from the sensor representing the load on the diesel engine, and a fuel metering apparatus responsive to the command signals from the controller representing the load on the diesel engine for introducing combustible fuel into the combustion chamber of the diesel engine corresponding to the boost of the rate of the flow of air delivered to the air intake manifold of the diesel engine. 10. The combination of claim 9 wherein: the gates are generally flat plates. 11. The combination of claim 9 wherein: the supercharger includes a housing having end walls, generally parallel inside chambers, an air inlet opening and an air exit opening, said rotors comprising a pair of rotors located in said chambers, means rotatably mounting the rotors on said end walls, and a drive apparatus connected to the diesel engine for rotating the rotors to move air through the chambers and discharge air through the air exit opening, said control apparatus for varying the volume and pressure of air supplied to the air intake manifold of the diesel engine being movably mounted on the housing for movement relative to the rotors for varying the volume of air moved by the rotors through the chambers and discharged air to the air intake manifold of the diesel engine. 12. The combination of claim 11 wherein: the pair of rotors include a first rotor having helical grooves along the length thereof and a second rotor having helical lands along the length thereof, said grooves and lands cooperating with each other during rotation of the rotors to move air through the chambers and discharge air to the air intake manifold of the diesel engine. 13. The combination of claim 9 wherein: the gates are generally flat plates. 14. The combination of claim 9 wherein: the supercharger has a housing with internal chambers, an air inlet opening and an air exit opening open to the internal chamber, said rotors comprising a pair of rotors located in the internal chambers, means for rotating the rotors to move air from the air inlet opening through the internal chambers and to the air exit opening. 15. The combination of claim 14 wherein: the actuators for selectively moving the gates are operable for retaining all the gates in their in positions during cold start of the diesel engine. 16. In combination: a four cycle diesel engine having an air intake manifold and at least one combustion chamber for receiving air from the air intake manifold, an electric generator for supplying electric power to an electric load, a first power transfer device drivably connecting the diesel engine to the electric generator whereby the diesel engine operates the electric generator and the electric generator imparts a load on the diesel engine, a supercharger for supplying air to the air intake manifold of the diesel engine, a second power transfer device drivably connecting the supercharger to the diesel engine whereby the diesel engine operates the supercharger, a sensor for sensing the load on the diesel engine and providing a signal representing the sensed load on the diesel engine, a controller for accommodating the signal from the sensor and providing command signals, said supercharger having a control apparatus for varying the volume and pressure of air supplied to the air intake manifold of the diesel engine responsive to the command signals from the controller representing the sensed load on the diesel engine to boost the rate of the flow of air delivered to the air intake manifold of the diesel engine above the naturally aspirated rate of the flow of air to the air intake manifold of the diesel engine, said control apparatus for varying the volume and pressure of air supplied to the diesel engine including cooperating rotors and a plurality of gates movable between in and out positions relative to the rotors to selectively decrease the volume of air supplied to the air intake manifold of the diesel engine when the gates are in their out positions, actuators to selectively move the gates between said out and in positions, said actuators including solenoids connected to the gates, said controller actuating the solenoids responsive to the signal from the sensor representing the load on the diesel engine, and a fuel metering apparatus responsive to the command signals from the controller representing the sensed load on the diesel engine for introducing combustible fuel into the combustion chamber of the diesel engine corresponding to the boost of the rate of the flow of air delivered to the air intake manifold of the diesel engine. 17. The combination of claim 16 wherein: the gates are generally flat plates. 18. The combination of claim 16 wherein: the supercharger includes a housing having end walls, generally parallel inside chambers, an air inlet opening and an air exit opening, said rotors comprising a pair of rotors located in said chambers, means rotatably mounting the rotors on said end walls, and a drive apparatus connected to the diesel engine for rotating the rotors to move air through the chambers and discharge air through the air exit opening into the air intake manifold, said control apparatus for varying the volume and pressure of air supplied to the air intake manifold of the diesel engine being movably mounted on the housing for movement relative to the rotors for varying the volume of air moved by the rotors through the chambers and discharged air to the air intake manifold of the diesel engine. 19. The combination of claim 18 wherein: the pair of rotors include a first rotor having helical grooves along the length thereof and a second rotor having helical lands along the length thereof, said grooves and lands cooperating with each other during rotation of the rotors to move air through the chambers and discharge air to the air intake manifold of the diesel engine. 20. The combination of claim 16 wherein: the supercharger has a housing with internal chambers, an air inlet opening and an air exit opening open to the internal chamber, said rotors comprising a pair of rotors located in the internal chambers, and drive means for rotating the rotors to move air from the air inlet opening through the internal chambers and to air exit opening. 21. The combination of claim 16 wherein: the actuators for selectively moving the gates are operable for retaining all the gates in their in positions during cold start of the diesel engine.
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