With Means To Provide Additional Motive Fluid For Motor Patents (Class 60/606)
  • Patent number: 4608828
    Abstract: Each cylinder of a supercharged four-stroke internal combustion engine is provided with a multi-purpose duct which passes from the compressed air manifold to the exhaust manifold and has a short branch within the cylinder head structure leading directly downward to connect with the cylinder where a single valve is provided to admit intake air and pass out exhaust gas. The multi-purpose duct curves around in a part of a spiral above the cylinder near the branching place and enters laterally in the portion of the duct that leads off to the exhaust manifold, so that a relatively high resistance to flow keeps the pressure in the compressed air duct from being unduly diminished while flow of air bypassing the cylinder between the compressed air and the exhaust ducts serves to increase the amount of working gas in the supercharger. The duct is shaped so as to keep very low the resistance to the flow of air into the cylinder and the flow of exhaust gas out of the cylinder.
    Type: Grant
    Filed: March 26, 1984
    Date of Patent: September 2, 1986
    Assignee: M.A.N. Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft
    Inventor: Thomas I. Mikota
  • Patent number: 4593525
    Abstract: An apparatus and method for operating a piston driven internal combustion engine having an exhaust gas turbocharger, provides for the exhaust gases of the cylinders to be conducted to an afterburner chamber and subsequently to the exhaust gas turbine of the turbocharger when the motor vehicle is coasting, i.e., when the motor vehicle and engine are being driven by the vehicle's inertia, with the ignition for the cylinders being turned off and the charging air being introduced into the afterburner chamber. The noncombusted fuel/air mixture from the cylinders is combusted in the afterburner chamber with the additional charging air to thereby bring the turbocharger to its full output for reacceleration of the engine.
    Type: Grant
    Filed: July 19, 1985
    Date of Patent: June 10, 1986
    Assignee: Dr. Ing. h.c.F. Porsche Aktiengesellschaft
    Inventor: Hans Mezger
  • Patent number: 4561253
    Abstract: A method of operating a four-stroke cycle Diesel engine supercharged by an exhaust gas-driven turbocompressor with valve timing comprising a partial overlap of the opening periods of the exhaust and intake valves, with early intake closure and partial exhaust closure for the major part of the intake step followed by partial reopening of the exhaust and its final closure near bottom dead center after closure of the intake valve. At low and medium engine powers part of the supercharged intake air is bypassed to an end of an exhaust manifold, thereby increasing the cylinder filling factor and combustion air excess and substantially reducing exhaust valve temperature in the mid-power operating range of the engine.
    Type: Grant
    Filed: February 28, 1985
    Date of Patent: December 31, 1985
    Assignee: Societe d'Etudes de Machines Thermiques SEMT
    Inventor: Remi Curtil
  • Patent number: 4559784
    Abstract: A method and apparatus for regulating a bypass flow of a turbocharged internal combustion engine is disclosed. A first preferred embodiment of the apparatus includes an air receiver which is in fluid communication with a turbocharger and an air oscillation pipe. The air oscillation pipe is in fluid communication with an inlet manifold, which inlet manifold is in fluid communication with a bypass duct and the turbocharged engine. The bypass duct is in fluid communication with the turbocharger. Pressure pulsations emanating from the engine propagate into the inlet manifold and the air oscillation pipe causing an air column within the inlet manifold and air oscillation pipe to oscillate. Periodic oscillations of the air column produces periodic pressure differences across the bypass duct, facilitating a bypass flow of air through the bypass duct.
    Type: Grant
    Filed: March 12, 1980
    Date of Patent: December 24, 1985
    Assignee: BBC Brown, Boveri & Company, Limited
    Inventors: Ernst Jenny, Bruno Zumstein
  • Patent number: 4548039
    Abstract: An internal combustion engine with several cylinders, with one or several superchargers, and with an additional compressor-drive by means of compressed gas, in which during partial load of the internal combustion engine, some cylinders operate as engine while the other cylinders which operate in the meantime as compressors, supply compressed gas for the additional compressor-drive of each supercharging aggregate that supplies the cylinder operating as combustion engine with charging air.
    Type: Grant
    Filed: August 22, 1979
    Date of Patent: October 22, 1985
    Assignee: MTU Friedrichshafen GmbH
    Inventors: Hans Dinger, Helmut Klotz
  • Patent number: 4534173
    Abstract: An internal combustion engine having a supercharger utilizes a secondary air supply control system for purifying exhaust gas. A secondary air supply passage with a reservoir chamber is provided in the middle of an intake passage communicating with an exhaust gas passage. A check valve prevents the back flow of exhaust gas in the middle of the secondary air supply passage. The secondary air passage in another embodiment has the intake passage downstream of a compressor or reservoir chamber in communication with the exhaust passage. A suitable amount of air is supplied into the exhaust passage from the intake passage or reservoir, at high pressure via the secondary air passage and check valve.
    Type: Grant
    Filed: October 19, 1982
    Date of Patent: August 13, 1985
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventor: Hiroaki Tsukamoto
  • Patent number: 4517802
    Abstract: A combustor system for use with a turbocharged combustion engine comprises a combustor connected for continuous passage of engine exhaust gases. The combustor includes a relatively low pressure fuel injection system for atomizing fuel for combustion in a substantially vitiated atmosphere, and a fuel control system for supplying fuel to the combustor in response to engine operating conditions.
    Type: Grant
    Filed: January 20, 1984
    Date of Patent: May 21, 1985
    Assignee: The Garrett Corporation
    Inventors: Robert J. Kobayashi, James H. Nancarrow, Jeffrey L. Alger
  • Patent number: 4502282
    Abstract: A turbo-charged compression ignition engine having a turbo-charger (40) for supercharging the engine, a mechanism (56, 59) for controlling the timing of closing of the inlet passage (42) of the engine, and an auxiliary cam for opening the exhaust valve of the engine at a point near the bottom dead center in the suction stroke. The area of the nozzle of the turbine of turbo-charger is controllable by a rotor-type mechanism (69). A passage formed in the rotary-type mechanism opens to the downstream side of this mechanism. The passage is communicated with the inlet pipe of the engine through a passage (42a).
    Type: Grant
    Filed: July 14, 1983
    Date of Patent: March 5, 1985
    Assignees: Usui Kokusai Sangyo Kabushiki Kaisha, Kabushiki Kaisha Kanesaka Gijutsu Kenkyusho
    Inventor: Hiroshi Kanesaka
  • Patent number: 4499731
    Abstract: An exhaust gas turbocharger has a movable control piston in a turbine casing. The piston is made up of a circular cylindrical body, subjected to exhaust gas pressure, or external pressure and a volute body. The volute body has substantially the cross section of the inlet volute space and adjusts the volume of the latter to the current exhaust gas flow in order to achieve optimum torque variation over the load range of the engine.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: February 19, 1985
    Assignee: BBC Brown, Boveri & Company, Limited
    Inventor: Peter Moser
  • Patent number: 4481773
    Abstract: A turbo-supercharging system for an internal combustion engine of a vehicle having an air brake system wherein compressed air is preferentially supplied to the air brake system and surplus air is used for supercharging the engine. The system includes an air compressor driven by the engine, an air reservoir tank for storing compressed air therein and supplying it to a turbine of a turbo-supercharger when required, and a solenoid-operated valve disposed in a conduit interconnecting the air tank and the air compressor. The solenoid-operated valve is normally held in its block position and adapted to be changed over to its communication position when air pressure in the air brake system exceeds a predetermined value.
    Type: Grant
    Filed: April 7, 1983
    Date of Patent: November 13, 1984
    Assignee: Kabushiki Kaisha Komatsu Seisakusho
    Inventors: Hiroshi Sugito, Tamotsu Kasuya
  • Patent number: 4474007
    Abstract: Outlet and inlet conduits of an internal combustion engine are united in, and carry a housing enclosing a rotor spool having one turbine and one compressor wheel. A cavity in the housing, the longitudinal axis of which is substantially parallel to a middle plane through the row of engine cylinders is adapted to receive the casing of the turbocharger, and may be designed in such a manner that the casing may be slid into the housing in the axial directions, without the housing having to be removed from the engine. Alternatively, the outlet and the inlet conduits may each, per se, be collected and form one half of the housing. The halves are brought together over the rotor spool, from both ends thereof. Resilient sealing members are preferably fitted between the two halves of the housing. A second exhaust gas turbine may be connected to the exhaust conduit from the supercharger, and may be adapted to drive at the power take-off shaft of the engine, or to drive some auxiliary.
    Type: Grant
    Filed: August 14, 1981
    Date of Patent: October 2, 1984
    Assignee: AB Volvo
    Inventors: Sven-Olof Kronogard, Clas-Olof Kronogard, Hakan Kronogard
  • Patent number: 4464901
    Abstract: A combustor system for use with a turbocharged combustion engine comprises a combustor connected for continuous passage of engine exhaust gases. The combustor includes a relatively low pressure fuel injection system for atomizing fuel for combustion in a substantially vitiated atmosphere, and a fuel control system for supplying fuel to the combustor in response to engine operating conditions.
    Type: Grant
    Filed: September 1, 1982
    Date of Patent: August 14, 1984
    Assignee: The Garrett Corporation
    Inventors: Robert J. Kobayashi, James H. Nancarrow, Jeffrey L. Alger
  • Patent number: 4452043
    Abstract: A compound traction engine for a heavy vehicle including a high temperature adiabatic four stroke reciprocating diesel engine arranged to drive a boost compressor through a differential gear. The other output of the gear is connected through a torque converter to the output shaft. The exhaust from the engine is fed to a turbine with an adjustable blade nozzle ring and the output from the compressor is connected to the air inlet of the engine and is also connected via a valve to the same turbine. The turbine is connected via a continuously variable transmission to the output shaft. An automatic control unit has inputs from an output torque/speed sensor and a boost pressure sensor and is arranged to control the variable gear and the turbine blade ring.
    Type: Grant
    Filed: July 21, 1981
    Date of Patent: June 5, 1984
    Assignee: South Western Industrial Research Limited
    Inventor: Frank J. Wallace
  • Patent number: 4449370
    Abstract: The object of the invention is to provide a low compression turbocharged diesel engine in which the turbocharger can be operated independently of the engine to power auxiliary equipment. As shown in FIG. 1, fuel and air are burned in a catalytic combustor 17 to drive the turbine wheel of turbine section 11a which is initially caused to rotate by starter motor 9. By opening flapper valve 26, compressed air from blower section 11b is directed to catalytic combustor 17 when it is heated and expanded, serving to drive the turbine wheel and also to heat the catalytic element 32 shown in FIG. 2. To start engine 10, valve 26 is closed, combustion is terminated in catalytic combustor 17, and valve 20 is then opened to utilize air from blower 11b for air driven motor 21. When engine 10 starts, the constituents in its exhaust gas react in the catalytic element 32 and the heat generated provides additional energy for the turbine section 11a.
    Type: Grant
    Filed: June 6, 1980
    Date of Patent: May 22, 1984
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: Lloyd W. Ream
  • Patent number: 4432206
    Abstract: The engine is supercharged by two turbocharger units which are capable of being put into operation in succession and their compressors are capable of supplying air to the engine in parallel. When the turbocharger unit is not in operation, the outlet of its compressor is put in communication through a bypass passage with the inlet of its turbine by means of flaps or the like.
    Type: Grant
    Filed: April 4, 1983
    Date of Patent: February 21, 1984
    Assignee: The French State
    Inventors: Jean F. Melchior, Thierry M. Andre
  • Patent number: 4430860
    Abstract: In a supercharged engine, a bypass connected to the compressor delivery pipe (4) supplies the turbine with all the air which has not been absorbed by the engine. The bypass (4) is divided into a first branch which supplies combustive air to the primary region (10) of an auxiliary combustion chamber and a second branch which supplies diluting air to the secondary region of the aforementioned chamber and comprises first throttle means. The first branch has second throttle means (13) comprising coupled orifices (14, 15) formed respectively on an inner sleeve (16) and an outer sleeve (17) movable relative to one another. According to the invention, a radial clearance (a) is maintained between the sleeves (16, 17) irrespective of their respective temperatures. Third throttle means (45), having a zero minimum flow section, are provided upstream or level with the second means (13).
    Type: Grant
    Filed: April 4, 1983
    Date of Patent: February 14, 1984
    Assignee: The French State
    Inventors: Jean F. Melchior, Thierry Andre
  • Patent number: 4429533
    Abstract: An internal combustion engine supercharged by exhaust turbochargers, with the engine being provided with an auxiliary combustion chamber, the exhaust gas of which is temporarily fed to a turbine of an exhaust gas turbocharger for improving acceleration characteristics of the internal combustion engine. The combustion air for the auxiliary combustion chamber is derived from a stream of supercharging air produced by the exhaust turbocharger. At least two exhaust turbochargers are provided with compressors thereof both conveying or feeding into a supercharging air conduit, to all cylnders of the internal combustion engine. Each of the compressors are equipped on an intake side with one check valve. During an idling or partial load, the exhaust gas of the internal combustion engine is fed to only one of the two exhaust turbochargers, wherein a conveying air stream produced by this exhaust turbocharger effects an automatic closing of the check valve of the other exhaust turbocharger.
    Type: Grant
    Filed: July 6, 1981
    Date of Patent: February 7, 1984
    Assignee: MTU-Motoren- und Turbinen-Union Friedrichshafen GmbH
    Inventor: Hans Dinger
  • Patent number: 4428192
    Abstract: An internal combustion engine with several cylinders and with one or several supercharging aggregates, in which at partial load of the engine, some cylinders operate as engine while the remaining cylinders, operating in the meantime as compressor, supply compressed gas to the turbine of a further supercharging aggregate whose compressor is connected in series with the compressor of that supercharging aggregate which supplies the cylinders operating as engine with supercharging air.
    Type: Grant
    Filed: April 15, 1982
    Date of Patent: January 31, 1984
    Assignee: MTU Friedrichshafen GmbH
    Inventors: Hans Dinger, Helmut Klotz
  • Patent number: 4426985
    Abstract: A supercharged internal combustion engine is equipped with a supercharging device, a knock sensor and a rotary valve disposed upstream of an intake part of the engine. A Miller cycle is applied to the engine, and when an engine knock occurs, such a phenomenon is sensed by the knock sensor to be converted into an electric signal by which a control device for the rotary valve is operable to stop the charge feed to the engine for a short period of time prior to the completion of the control stroke of the engine, thereby extremely enhancing the output power of the engine while eliminating the generation of the engine knock.
    Type: Grant
    Filed: September 25, 1981
    Date of Patent: January 24, 1984
    Assignee: Kanesaka Technical Institute Ltd.
    Inventor: Hiroshi Kanesaka
  • Patent number: 4426848
    Abstract: Improved exhaust gas recirculation systems for turbocharged gas engines that include an exhaust pipe, a turbocharger connected thereto, and a carburetor connected with a source of gas for the engine. The recirculation system includes an air conduit extending from the turbocharger compressor discharge to a venturi, an exhaust gas conduit that extends from a connection with the exhaust pipe between the engine and the turbocharger to the venturi, a second air conduit that extends from the exhaust pipe to a connection with the first air conduit, and control valves located in the exhaust gas conduit and in the second air conduit. The valves are closed when the engine is being started or idling at no load and open when a load is imposed or when engine rpm's are increased. No pumps, blowers, etc. are needed because the system operates on a differential in pressure created within the system to cause the exhaust gas recirculation.
    Type: Grant
    Filed: November 20, 1981
    Date of Patent: January 24, 1984
    Assignee: Dresser Industries, Inc.
    Inventor: Robert W. Stachowicz
  • Patent number: 4422296
    Abstract: An internal combustion engine which is supercharged by exhaust gas turbochargers and which includes an auxiliary combustion chamber. Exhaust gases from the auxiliary combustion chamber are temporarily fed to turbines of the exhaust gas turbocharger for improving acceleration characteristics of the internal combustion engine. The combustion air for the auxiliary combustion chamber is derived from the stream of supercharging air produced by the turbochargers. At least two exhaust turbochargers are provided which operate in parallel. In case of acceleration of the engine, the exhaust gases from the internal combustion engine circumvent the turbines of the exhaust gas turbochargers, and then the exhaust gases of the auxiliary combustion chamber alone effect the drive for all exhaust gas turbochargers.
    Type: Grant
    Filed: August 4, 1981
    Date of Patent: December 27, 1983
    Assignee: MTU-Motoren-und Turbinen-Union Friedrichshafen GmbH
    Inventors: Hans Dinger, Helmut Klotz
  • Patent number: 4413593
    Abstract: Combustion control in a spark ignited internal combustion engine for inhibition of incipient detonation, or knock, is provided by the addition of exhaust gases or other diluent gases to the intake manifold of the engine prior to opening of the intake valve. The addition of this diluent gas causes a prestratification of the charge entering the combustion chamber of the engine. Upon compression and ignition of the charge, the diluent gas inhibits spontaneous combustion of the portions of the charge furthest away from the site of ignition of the charge, thereby preventing one cause of incipient detonation. This combustion control may be used with turbocharged and supercharged engines, as well as with naturally aspirated internal combustion engines, and allows the engine to operate on much lower octane fuel than would be possible without prestratification.
    Type: Grant
    Filed: December 1, 1981
    Date of Patent: November 8, 1983
    Assignee: Cornell Research Foundation, Inc.
    Inventor: Edwin L. Resler, Jr.
  • Patent number: 4404805
    Abstract: An internal combustion engine supercharged with air by an exhaust gas-driven turbo-compressor discharging through a by-pass duct a tapped flow rate of compressed air into the exhaust gas pipe-line feeding the turbine, said tapped flow rate of compressed air being heated by means of a heat exchanger inserted into the by-pass duct and through which are flowing the exhaust gases from the turbine, said tapped flow rate of heated compressed air being injected into the upstream end of the exhaust manifold of the engine.
    Type: Grant
    Filed: March 17, 1981
    Date of Patent: September 20, 1983
    Assignee: Societe d'Etudes de Machines Thermiques S.E.M.T.
    Inventor: Remi Curtil
  • Patent number: 4389846
    Abstract: An arrangement for controlling a supply of air and a volume of fuel to an auxiliary combustion chamber associated with a supercharged internal combustion engine. The auxiliary combustion chamber being adapted to periodically deliver additional exhaust gas to an exhaust gas turbine of the supercharger as a function of an instantaneous exhaust gas volume from the internal combustion engine. A sensor is disposed in a charging air line of the internal combustion engine for influencing a pressure detector which delivers an actual value signal corresponding to the instantaneous charging air pressure. The signal reaching a comparator by way of an input amplifier, in which comparator the signal is compared with a guide parameter delivered by a fixed value adjustment device and corresponding to the desired constant charging air pressure.
    Type: Grant
    Filed: November 5, 1981
    Date of Patent: June 28, 1983
    Assignee: Motor-und Turbinen-Union GmbH
    Inventor: Franz Butscher
  • Patent number: 4388802
    Abstract: An internal combustion engine which is adapted to be supercharged by at least two exhaust gas turbochargers operating in parallel. The engine includes an auxiliary combustion chamber, the exhaust gas of which is temporarily fed to a turbine of an exhaust gas turbocharger for improving an acceleration characteristic of the internal combustion engine. Combustion air for an idling operation of the auxiliary combustion chamber is derived from a stream of supercharging air produced by the exhaust gas turbocharger. During a partial load operation of the engine, only one of the exhaust gas turbochargers is supplied with an entire volume of the exhaust gas of the internal combustion engine to provide the supply of supercharging air. The exhaust gas from the auxiliary combustion chamber, operated with a full load for the case of accelerating in a lower load range of operation of the internal combustion engine, is fed to the turbine of the other exhaust gas turbocharger.
    Type: Grant
    Filed: August 4, 1981
    Date of Patent: June 21, 1983
    Assignee: MTU Motoren-und Turbinen-Union Friedrichshafen GmbH
    Inventors: Hans Dinger, Helmut Klotz
  • Patent number: 4378677
    Abstract: A bypass control apparatus for turbocharged internal-combustion engines, comprising an actuating cylinder for the bypass valve, wherein the pressure of a fluid medium or fluid in the actuating cylinder is controlled by a fixedly adjustable throttle in the fluid supply pipe or line and a throttle in the fluid discharge pipe or line which is adjustable by electromagnetic means in proportion to the engine speed.
    Type: Grant
    Filed: June 16, 1980
    Date of Patent: April 5, 1983
    Assignee: BBC Brown, Boveri & Company Limited
    Inventor: Bruno Zumstein
  • Patent number: 4373336
    Abstract: An internal combustion engine has a turbo-supercharger connected to an engine charge air intake manifold and an exhaust gas turbine connected to an engine exhaust manifold. An automatic bypass includes a bypass line interconnecting the exhaust manifold upstream of the exhaust gas turbine and the air intake manifold downstream of the compressor. A bypass valve in the bypass line comprising an adjustable throttle member for adapting the quantity of bypassed gas to the respective operating state of the engine. An actuating piston closes the throttle member in response to pressures from the compressor side above a pre-selected value. The actuating piston is disposed on a side of the throttle member facing away from the air intake manifold. The resistance of the valve to flow from the compressor side to the turbine side is less than the resistance in the opposite direction. The resistance to flow, and the fully unseated valve position define an operating curve of the engine which is adjustable.
    Type: Grant
    Filed: December 20, 1979
    Date of Patent: February 15, 1983
    Assignee: BBC Brown, Boveri & Company, Limited
    Inventors: Hansulrich Horler, Erwin Meier
  • Patent number: 4372121
    Abstract: Disclosed is a power-plant comprising an internal-combustion engine, a turbo-charger providing the supercharging of said internal-combustion engine and having a turbine and a compressor whose outlet communicates with an inlet of the internal-combustion engine and, through a by-pass duct, with a turbine inlet communicating with an outlet of the internal-combustion engine. An air flow sensor is installed at an inlet of the compressor. Arranged in the by-pass duct are an auxiliary combustion chamber and an air flow rate adjusting device for the air by-passed from the compressor to the turbine. The air flow rate adjusting device incorporates a throttling member linked with a drive used to change the position thereof and is provided with a comparison unit having a first input, a second input, and an output.
    Type: Grant
    Filed: March 16, 1981
    Date of Patent: February 8, 1983
    Inventors: Sergei S. Sokolov, Vadim R. Komovsky, Leonid I. Vlasov, Boris M. Boretsky, Grigory V. Shiryaev
  • Patent number: 4367626
    Abstract: A turbocharger system includes a compressor driven by a turbine and a mixing device so connected that a portion of the outlet of the compressor is mixed with a portion of the exhaust gas of the combustion engine and is used to power the turbine. In one form the mixing device is an ejector and in another form, the compressor, turbine and mixing device are a unitary structure. Also described is a turboejector and a system is which a heat exchanger is used to preheat the compressor air prior to admixture with the engine exhaust gas. Various forms and structures are described.
    Type: Grant
    Filed: July 16, 1979
    Date of Patent: January 11, 1983
    Inventor: Everett H. Schwartzman
  • Patent number: 4364717
    Abstract: An apparatus for turbocharging an internal combustion engine, and which is characterized by the ability to avoid excessive heat transfer to the bearings and any other heat sensitive components. In the preferred embodiment, the lubricating oil for the bearings in the turbocharger housing is directed through a passageway in the bearing shaft and is discharged onto the end wall of the bearing housing in a circular pattern, to thereby cool the end wall and minimize heat transfer from the turbine to the bearings in the housing. Also, the end wall of the bearing housing is spaced from the adjacent rear wall of the turbine housing to define a cooling air gap therebetween, and apertures are provided in the housing for permitting air to flow through the cooling gap to cool the opposing surfaces of the two adjacent walls and thereby minimize heat transfer therebetween.
    Type: Grant
    Filed: July 3, 1979
    Date of Patent: December 21, 1982
    Assignee: Barmag Barmer Maschinenfabrik AG
    Inventors: Heinz Schippers, Werner Branscheid, Erich Lenk, Udo Hardt
  • Patent number: 4356696
    Abstract: A combustor system for use with a turbocharged combustion engine comprises a combustor connected for continuous passage of engine exhaust gases. The combustor system includes a relatively low pressure fuel injection system for atomizing fuel for combustion in a substantially vitiated atmosphere, a fuel control system for supplying fuel to the combustor in response to engine operating conditions, and a heat exchanger for preheating compressed bypass air prior to supply thereof to the combustor.
    Type: Grant
    Filed: April 4, 1980
    Date of Patent: November 2, 1982
    Assignee: The Garrett Corporation
    Inventor: John L. Mason
  • Patent number: 4351290
    Abstract: The invention uses the supersonic blast occurring when the exhaust is opened in an internal combustion engine having a variable volume combustion chamber.A transfer conduit is provided between the exhaust pipe and the intake pipe, the volume of this conduit being greater than the cubic capacity of the cylinder, as well as a supply channel and a discharge channel, of a smaller section than the conduit, between this latter and the combustive air intake manifold and the burnt gas exhaust manifold.The invention applies principally to supercharged diesel engines with low compression rate.
    Type: Grant
    Filed: November 8, 1979
    Date of Patent: September 28, 1982
    Inventor: Jean Melchior
  • Patent number: 4346559
    Abstract: A bypass control apparatus for turbocharged internal-combustion engines, comprising an actuating cylinder for the bypass valve of the bypass control apparatus, wherein the pressure of a hydraulic fluid in the actuating cylinder is controlled by a volume flow which is proportional to the engine speed. The hydraulic fluid is returned into a hydraulic tank through a throttle line or pipe containing a fixedly adjustable throttle. The throttle line branches off a hydraulic line or pipe at a location upstream of the actuating cylinder.
    Type: Grant
    Filed: June 16, 1980
    Date of Patent: August 31, 1982
    Assignee: BBC Brown, Boveri & Company Limited
    Inventor: Bruno Zumstein
  • Patent number: 4328672
    Abstract: A bypass control apparatus for turbocharged internal-combustion engines, comprising an actuating cylinder for a bypass valve of the bypass control apparatus, wherein the pressure of a fluid medium or fluid in the actuating cylinder is controlled by fixed throttles and throttles adjustable by the boost air pressure arranged in the fluid supply and discharge pipes or lines.
    Type: Grant
    Filed: June 16, 1980
    Date of Patent: May 11, 1982
    Assignee: BBC Brown, Boveri & Company Limited
    Inventor: Bruno Zumstein
  • Patent number: 4322949
    Abstract: A turbocharger system for supplying charge air to a combustion engine includes a nonventilated hydraulic turbine mounted directly on the turbocharger shaft, and an auxiliary combustor mounted in-line between the engine and the turbocharger. The nonventilated hydraulic turbine is selectively driven by a high pressure hydraulic fluid to drive the turbocharger for supplying air to the auxiliary combustor, which in turn supplementally drives the turbocharger throughout a broad range of engine operation to provide additional air flow to the engine when required.
    Type: Grant
    Filed: May 27, 1980
    Date of Patent: April 6, 1982
    Assignee: The Garrett Corporation
    Inventors: Joe L. Byrne, Robert J. Kobayashi, James H. Nancarrow
  • Patent number: 4299090
    Abstract: A cylinder-piston internal combustion engine which includes at least two single or two two-stage exhaust gas turbochargers which together and in parallel supply the cylinder of the internal combustion engine with charging air when there is a large supply of exhaust gases from the internal combustion engine. When there is a small amount of exhaust gases available, at least one of the exhaust gas turbochargers is adapted to be switched off so as to increase the charging pressure. A check valve is disposed in a suction line of a compressor of the exhaust gas turbocharger which is adapted to be switched off with the check valve allowing a flow of air in a suction line of the compressor in a direction of the compressor but prevents a flow of air in an opposite direction.
    Type: Grant
    Filed: October 19, 1979
    Date of Patent: November 10, 1981
    Assignee: Motoren-und- Turbinen-Union Friedrichshafen GmbH
    Inventor: Herbert Deutschmann
  • Patent number: 4287717
    Abstract: This disclosure relates to a turbocharged low compression ratio diesel engine. An air by-pass is connected in parallel with the engine and is operable to by-pass a portion of the compressor output around the engine and into the exhaust manifold. A control is connected in the by-pass to regulate the amount of by-passed air, the control operating in response to the compressor output. The by-pass further includes means for heating the air flowing to the turbine to aid fuel combustion in the engine cylinders.
    Type: Grant
    Filed: January 4, 1979
    Date of Patent: September 8, 1981
    Assignees: Cummins Engine Company, Inc., Kabushiki Kaisha Komatsu Seisakusho
    Inventors: Thomas A. Oldfield, Edward D. Smith, Hideo Furukawa
  • Patent number: 4233815
    Abstract: An internal combustion engine of the expansible chamber type and preferably a diesel engine is equipped with a turbo-compressor unit, comprising at least one compressor and at least one turbine, and at least one bypass pipe enabling direct and permanent passage for the air delivered through the compressor to the turbine inlet.The diesel engine is supercharged by the compressor driven by the turbine. Regulating means are provided to limit the rotary speed of the supercharging unit so that it operates at or above a minimum threshold value such that the engine, which has a compression ratio of less than 12, can be started and kept running at low power without difficulty.
    Type: Grant
    Filed: August 28, 1978
    Date of Patent: November 18, 1980
    Assignee: Etat Francais
    Inventor: Jean F. Melchior
  • Patent number: 4233814
    Abstract: A power unit comprises an internal combustion engine adapted for operating with natural induction, supercharged by a turbine-compressor unit receiving the exhaust gases of the engine. The compressor supplies air to the engine through an intake pipe provided with an atmospheric air inlet closed by a check valve in operation under load. The power of the engine is controlled by a power control member movable by an operator between a maximum power position and an idling position. An inlet valve, placed in the air inlet of the compressor and movable between an open position and a closed position, is biased towards closure by the power control member when the latter is moved towards its idling position. A locking member responsive to air pressure at the outlet of the compressor cooperates with said inlet valve to prevent its closing as long as the air pressure at the outlet of the compressor is greater than a predetermined threshold.
    Type: Grant
    Filed: August 16, 1978
    Date of Patent: November 18, 1980
    Inventor: Bernard Thore
  • Patent number: 4215550
    Abstract: An internal combustion engine and a method of operating the same, which engine includes a supercharger having an exhaust gas turbine and a charging air compressor with a charging air line supplying charging air to the internal combustion engine. A bypass line is provided for connecting the charging air line with the exhaust gas line and a combustion chamber is disposed in one of the exhaust gas line and the bypass line. A return line for recycling exhaust gases branches off from the line in which the combustion chamber is disposed and a connecting line is provided for connecting the exhaust gas line with the charging air line. Arrangements are provided for at least one of selectively restricting and blocking at least one of the charging air line, bypass line, exhaust gas line and return line.
    Type: Grant
    Filed: February 10, 1978
    Date of Patent: August 5, 1980
    Assignee: Motoren- und Turbinen-Union Friedrichshafen GmbH
    Inventors: Hans Dinger, Robert Schulmeister
  • Patent number: 4215549
    Abstract: A combustor system for use with a turbocharged combustion engine comprises a combustor connected for continuous passage of engine exhaust gases. The combustor includes an integrated fuel control and purge system for supplying fuel to the combustor in response to engine operating conditions, and for purging fuel from the system when the combustor is shut down.
    Type: Grant
    Filed: November 25, 1977
    Date of Patent: August 5, 1980
    Assignee: The Garrett Corporation
    Inventor: John C. Daeschner
  • Patent number: 4160365
    Abstract: A system comprising an engine with a low pressure ratio having an inlet and outlet; a turbocompressor consisting of a turbine having its exhaust side connected with the engine outlet via a gas line, and a compressor having its inlet side connected via an air line with the engine inlet, which turbine and compressor are mounted on a common shaft. A combustion chamber is incorporated in a line communicating with the air and gas lines and provided with a fuel system. An air control valve and a fuel control valve are arranged to control the delivery of air and fuel into the combustion chamber. This is connected to a turbocompressor speed control circuit intended to maintain a predetermined speed during prestarting to provide independent operation of the turbocompressor and the combustion chamber. The turbocompressor speed control circuit is connected with an engine speed pickup.
    Type: Grant
    Filed: August 12, 1977
    Date of Patent: July 10, 1979
    Assignee: Tsentrainy Nauchno-Issiedovatelsky Dizeiny Institut
    Inventors: Alexandr P. Petrov, Evgeny S. Kovalevsky, Anatoly F. Kosyak, German G. Bondarev
  • Patent number: 4125999
    Abstract: An internal combustion engine of the expansible chamber type and preferably a diesel engine is equipped with a turbo-compressor unit, comprising at least one compressor and at least one turbine, and at least one bypass pipe enabling direct and permanent passage for the air delivered through the compressor to the turbine inlet.The diesel engine is supercharged by the compressor driven by the turbine. Regulating means are provided to limit the rotary speed of the supercharging unit so that it operates at or above a minimum threshold value such that the engine, which has a compression ratio of less than 12, can be started and kept running at low power without difficulty.
    Type: Grant
    Filed: September 8, 1976
    Date of Patent: November 21, 1978
    Assignee: Etat Francais
    Inventor: Jean F. Melchior
  • Patent number: 4124979
    Abstract: An internal combustion engine with exhaust gas turbocharger, according to which in the lower partial load range of the engine for purposes of increasing the temperature of the air charge exhaust gas from an exhaust gas conduit is through a connecting line admixed to the compressed air charge, and according to which in the full load range a portion of the compressed air charge is through a connecting line passed from an air charge pressure line into the exhaust gas conduit ahead of the exhaust gas turbine. Ahead of where the connecting line leads into the air charge pressure line, there is provided an air charge cooler which by means of a thermostatic control controls the charge air of the internal combustion engine to a predetermined temperature.
    Type: Grant
    Filed: November 29, 1976
    Date of Patent: November 14, 1978
    Assignee: Klockner-Humboldt-Deutz Aktiengesellschaft
    Inventors: Paul Tholen, Gerhard Finsterwalder
  • Patent number: 4114379
    Abstract: A supercharged engine is provided with a by-pass pipe through which all the air from the compressor which is not absorbed by the engine flows towards the turbine through an auxiliary combustion chamber. There is provided a system for supplying fuel to the combustion chamber, comprising means for regulating the flow rate of fuel supplied to the auxiliary chamber so as to prevent the supercharging pressure falling below a set value; in which power unit the regulating means comprise sensing means sensitive to the quantity of fuel injected per cycle into the engine so that each value of the said quantity of fuel is made to correspond to a particular set value of supercharging pressure.
    Type: Grant
    Filed: September 8, 1975
    Date of Patent: September 19, 1978
    Assignee: Etat Francais
    Inventors: Jean Melchior, Thierry Andre
  • Patent number: 4112684
    Abstract: A controllable bypass conduit connects the compressor with the exhaust or discharge system and this bypass conduit communicates there in a range of lower pressure on a combustion machine having working chambers formed with a discharge turbo charger. The bypass conduit communicates into a mixing zone of a pulse converter embodied as an underpressure zone.
    Type: Grant
    Filed: June 22, 1976
    Date of Patent: September 12, 1978
    Assignee: Klockner-Humboldt-Deutz Aktiengesellschaft
    Inventor: Paul Tholen
  • Patent number: 4091620
    Abstract: A supercharged internal combustion engine having an exhaust gas turbocharger which includes an exhaust gas turbine and a charging blower driven by the exhaust gas turbine. A secondary air pump is associated with the internal combustion engine for afterburning of the exhaust gases with a regulating valve, controlled by the combustion air pressure, being effective to supply secondary air from the secondary air pump into either the exhaust gas line upstream of the exhaust gas turbine or discharging of the secondary air into the atmosphere in dependence upon the combustion air pressure.
    Type: Grant
    Filed: September 17, 1976
    Date of Patent: May 30, 1978
    Assignee: Dr. Ing. h.c.F. Porsche Aktiengesellschaft
    Inventor: Heinz Dorsch
  • Patent number: 4089173
    Abstract: A diesel engine is supercharged by a compressor driven by a turbine which receives the exhaust gas of the engine. A bypass pipe permits the air delivered by the compressor and not taken by the engine to flow to the turbine. Means for impressing to the air flow in the by-pass a pressure drop which is substantially independent of the rate of flow and increases when the output pressure of the compressor increases comprises an air balanced throttle member in the by-pass and separate control means.
    Type: Grant
    Filed: September 22, 1975
    Date of Patent: May 16, 1978
    Assignee: Etat Francais
    Inventors: Jean Melchior, Thierry Andre
  • Patent number: 4078387
    Abstract: A power unit comprises a Diesel engine supercharged by a turbocompressor which has a turbine receiving the engine exhaust gases. A by-pass pipe conveys the air not absorbed by the engine from the compressor to the turbine with a pressure drop which is independent of the flow rate and increases with the compressor outlet pressure. An auxiliary combustion chamber upstream of the turbine receives the air which has travelled through the by-pass. A throttle is disposed in the path of the supercharging air to the engine and is automatically actuated so as to maintain the flow rate of air absorbed by the engine at a value below the flow rate supplied by the compressor under low load conditions.
    Type: Grant
    Filed: April 23, 1976
    Date of Patent: March 14, 1978
    Assignee: Etat Francais
    Inventors: Jean Melchior, Thierry Andre, Michel de Lambert DE Boisjean
  • Patent number: 4077219
    Abstract: A power unit comprises an internal combustion compression ignited engine having variable-volume combustion chambers and supercharged by a turbocompressor having a turbine which receives the engine exhaust gases. A bypass pipe which is permanently open during operation of the engine returns the air not absorbed by the engine to the turbine with a pressure drop which, if appreciable, is independent of the flow rate and increases with the compressor outlet pressure. The power unit comprises a heat exchanger between the gas flow leaving the turbine and the air flow leaving the compressor. An air cooler is disposed in the path of the air travelling from the heat exchanger to the engine.
    Type: Grant
    Filed: April 23, 1976
    Date of Patent: March 7, 1978
    Assignee: Etat Francais
    Inventors: Jean Melchior, Thierry Andre