HEVs characterised by the architecture of the hybrid electric vehicle, PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES, Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. In order to optimize this process, a simulation tool for Stirling vehicle was developed based in ADVISOR, a proven hybrid electric vehicle simulation software, and MARWEISS, a Stirling engine simulator. He also plans to submit his laboratory findings to the Texas Transportation Institute, which will verify his 100 miles per gallon claims. generators driven by combustion engines with provision for separate direct mechanical propulsion, Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells, Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries, Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. [2] The simulation tool allows the study of Stirlingpowered vehicles in conventional or hybrid electric (series, parallel or split) configurations, determining parameters of the vehicle like fuel consumption, power output, emissions, energy flow and the engine's temperature profile. Within the specification and the following claims, the term combustion axis shall refer to the direction of predominant fluid flow upon combustion of the fluid. MacDowell also redesigned the Stirling engine to have the dimensions and appearance of a standard four-cylinder engine, making it compatible with existing automobiles. The air is considered fully warmed up when it exceeds its known ignition temperature. In general, a hybrid electric vehicle combines a combustion engine with a battery and an electric motor. In yet another embodiment, the personal vehicle has modes in which it is not statically stable.
turbine micro jet engine jets bladon hybrid turbines electric powered jaguar motor rover cars gas land vehicle pistonheads turbina tech For comparison, a standard internal combustion engine operates only at 14 percent efficiency. In addition, the personal vehicle includes a controller for controlling a total power load placed on the external combustion engine so as to provide short term regulation of external combustion engine parameters. Incomplete combustion of the fuel-air mixture produces large amounts of CO and HC. a drive motor coupled to the energy storage device and the assembly, the drive motor powered entirely by the locomotive power provided by the energy storage device; and. Nos. As used in this description and the following claims, a fuel-air ratio is the ratio of the mass of the fuel to the mass of the air flowing into the combustion chamber of the burner. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. In addition to providing the optimal fuel-air ratio, the fuel and air combusted in burner. The determination of the V-I plane for a particular battery is well within the scope of one of ordinary skill in the art. series hybrid electric vehicles, Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles, Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries, Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC], Conjoint control of vehicle sub-units of different type or different function, Conjoint control of vehicle sub-units of different type or different function including control of propulsion units, Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines, LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS, RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES, Transmissions characterised by use of other elements; Other transmissions, Transmissions characterised by use of other elements; Other transmissions characterised by the use of two or more dissimilar sources of power, e.g. With a personal account, you can read up to 100 articles each month for free. A lean fuel air mixture has more air than a stoichiometric mixture (i.e., 15.67 grams of air per gram of propane, for example). No. The CO and HC emissions will continue to increase as more air is added to the fuel-air mixture until the flame extinguishes at a Lean Blow-Out limit (LBO). However, both these approaches tend to increase the complexity, size, and weight of the engine design. {/102}Depending on the size of heater head. The run fuel-air ratio in the preferred embodiment is 0.026 grams fuel to gram air, which results in approximately 13% oxygen in the exhaust of the engine. This document is focused in the application of Stirling engines as the power source for automobile propulsion. a generator having an output coupled to the external combustion engine, the generator for converting the mechanical energy produced by the external combustion engine to electrical energy that is provided at the output to the assembly; iii. His idea was so brilliant that Texas A&M University became involved in the project, providing MacDowell with technical expertise and a testing environment to aid in the development of the engine. In another embodiment of the invention a personal vehicle for transporting a user over a surface includes a support for supporting the user, a ground contacting module having at least one ground contacting member and a drive arrangement for causing locomotion of the support, ground contacting module and user over a surface. How much is Apple Music, and how can you get it for free?
stirling engine sunnytech m14 sandbox Once the flame is stabilized, and the temperature of the combustion chamber of the burner reaches the desired warmup temperature, the fuel-air ratio is then controlled based on the air preheat temperature and the fuel type. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the combustion engines, Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. For example, the ignition temperature for propane is 490 C. In a preferred embodiment, where the fuel is propane, the start fuel-air ratio is 0.052 grams fuel to gram air, which results in approximately 4% oxygen in the exhaust of the engine. The LBO will increase as the temperature of the incoming air (i.e., the preheated air) increases. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. The drive arrangement includes an external combustion engine for generating mechanical energy and thermal energy, a generator for converting the mechanical energy produced by the external combustion engine to electrical energy and an energy storage device for storing power provided by the generator and for providing power to the external combustion engine and the assembly.
piezoelectric road installing pavement bill harness otherwise allow lost could california power travel cars greenoptimistic batteries, Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors, Quantum Industrial Development Corporation, Stig G. Carlqvist Motor Consultant (C.M.C.)
PAYMENT OF MAINTENANCE FEE, 12TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1553); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY. In an alternative embodiment, heater tubes may be used to transfer heat from the hot fluid combustion products to the working fluid of the engine. Unlike steam engines which utilizea similar principal, the Stirling engine has an internal regenerative heat exchanger that keeps the hot and cold air at the correct temperature. For a sudden increase in the load, The adjustment current may be selected based on the known V-I characteristics of the battery. In addition, the hybrid Stirling engine/generator has good throttle response and instant power as required by a vehicle for operation. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. The control system maintains the stability of the personal vehicle by continuously sensing the orientation of the vehicle, determining the corrective action to maintain stability, and commanding the wheel motors to make the corrective action. We tested the self-driving Mercedes tech so advanced, its not allowed in the U.S. We drove Mercedes hand-built EQXX concept, and its unlike any other EV, 2022 Mercedes-Benz EQB first drive review: An EV better than its gas sibling, Ford recalls 100,000 hybrid cars over fire risk, 2022 Rivian R1S first drive review: An EV SUV fit for an expedition or a drag race, With Tesla bleeding money, Elon Musk initiates hardcore spending review, Europe just suffered its worst DDoS attack ever, but we dont know why. NEW POWER CONCEPTS LLC, NEW HAMPSHIRE, Free format text: This recycling feature boosts the engines efficiency to a whopping 50 percent. The hybrid Stirling engine/generator is advantageously of a small size (5 kW or less) with ultra low emissions and may be implemented in a variety of personal vehicles. The power control system, therefore, is designed to account for the lengthy response time of a Stirling cycle engine. This document is focused in the application of Stirling engines as the power source for automobile propulsion. Once proven and tested, MacDowell believes his idea will revolutionize the hybrid engine industry leading to the eventual end of the internal combustion engine. KENSJosh Mac MacDowell of San Antonio Texas had a brilliant idea. The ignition fuel air ratio is maintained until the flame stabilizes and the temperature of the interior of the combustion chamber of the burner. 2001 SAE International The term flame speed is defined as the speed at which a flame front will propagate through a particular fuel-air mixture. No. The invention may be implemented in a wide range of embodiments. Stirling cycle type engines, Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs, Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. Though mechanically sound, the Stirling engine never caught on in the 1800s, with most businesses choosing to use steam engines for their industrial applications. The internal combustion engine, dominant of the vehicle market, has been the "option of choice" for auxiliary power unit of the hybrid vehicle, although other power sources as fuel cells, Stirling engines and gas turbines have been employed as well [1]. NASA even experimented with the engine in the early 1980s, and was able to achieve 54 miles per gallon, but the Space Agency never went any further with the technology. The vehicle further includes a power output coupled to the energy storage device for providing power to an external load, while the vehicle is stationary.
Accordingly, the fuel-air ratio is first controlled by the controller (shown in, A given fuel will only ignite over a limited range of fuel-air ratios. d. a controller, coupled to the drive arrangement, for controlling a total electrical power load placed on the external combustion engine such that short term regulation of external combustion engine temperature is provided.
He took a Stirling engine, a type of engine developed 200 years ago, and added some 21st-century technology to it. HEAT PUMPS, IN GENERAL, Fluid heaters having electrical generators, Fluid heaters having electrical generators with combustion engines, GENERAL 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, TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE, CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION, Other road transportation technologies with climate change mitigation effect, Energy storage systems for electromobility, e.g.
No. The centerpiece of MacDowells innovationis the Stirling engine, which was created in 1816. In one embodiment, the external combustion engine is a Stirling cycle engine. The vehicle may include an inverter coupled to the energy storage device so that alternating current power may be derive for an external load. generators driven by combustion engines using DC generators and DC motors, Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. MacDowell borrowed one of these Stirling engines from NASA and began experimenting with it to see if he could use the regenerative engine with 21st-century automotive know-how. batteries or capacitors, Electric propulsion with power supplied within the vehicle, Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. Typically, the combustion engine is an internal combustion engine. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. The closed-cycle air engine uses the expansion of hot air and the compression of cold air to generate the power needed to drive an engine. generators driven by combustion engines, Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g.
As a result, the optimal fuel-air ratio decreases as the temperature of the preheated air increases during the warmup phase of the engine. speed, deceleration or energy consumption, Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. Owner name: Once the engine is warmed up, the fuel-air ratio is adjusted to minimize the emissions produced and to maintain a stable flame. The marketing success of hybrid vehicles significantly depends on the selection, integration and cost of the energy systems. The described embodiments of the invention are intended to be merely exemplary and numerous variations and modifications will be apparent to those skilled in the art. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. For terms and use, please refer to our Terms and Conditions At this point, pockets of the fuel-air mixture will pass through the burner without complete combustion.
stir lec gm stirling engine hybrid opel ii kadett volt jolt chevrolet past plugincars predecessor 1969 chevy ad torana 60s The marketing success of hybrid vehicles significantly depends on the selection, integration and cost of the energy systems. The analysis of the simulation results can be employed to identify the critical features of the Stirling-powered vehicle. At ignition, an ignition fuel-air ratio chosen which is equal to or less than the stoichiometric fuel-air ratio corresponding to the fuel being used. The optimal fuel-air ratio first decreases linearly from a start fuel-air ratio for room temperature air to a run fuel-air ratio, for warmed up preheated air temperature. In accordance with an embodiment of the invention, a personal vehicle for transporting a user over a surface includes a support for supporting the user, a ground contacting module having at least one ground contacting member and a drive arrangement for causing locomotion of the support, ground contacting module and user over a surface. For example, Stirling cycle engines generally make poor traction motors due to poor throttle response and limited power in comparison to an internal combustion. 4,996,841 to Meijer or controlled the pressure of the working fluid as described in U.S. Pat. Prior attempts to increase the responsiveness of a Stirling cycle engine provided a variable dead space for the working fluid as described in U.S. Pat. In his model, the Stirling engine runs at a fixed RPM generating electricity that is used to charge the batteries, which drive motors that propel the vehicle. ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KAMEN, DEAN L.;LANGENFELD, CHRISTOPHER C.;NORRIS, MICHAEL;AND OTHERS;REEL/FRAME:014256/0946;SIGNING DATES FROM 20030501 TO 20030701, Free format text: 3,940,933 to Nystrom and U.S. Pat. [2] The simulation tool allows the study of Stirling-powered vehicles in conventional or hybrid electric (series, parallel or split) configurations, determining parameters of the vehicle like fuel consumption, power output, emissions, energy flow and the engine's temperature profile. In accordance with an embodiment of the present invention, low emissions and high efficiency may be provided by producing a pre-mixed flame even in the presence of air heated above the auto-ignition temperature of the fuel, and additionally, by minimizing the pressure drop between the air inlet and the flame region thereby minimizing blower power consumption. All such variations and modifications are intended to be within the scope of the present invention as defined in the appended claims. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR, Other domestic- or space-heating systems using heat pumps, Indexing codes relating to the type of vehicle, Input parameters relating to a particular sub-units, Energy storage means for electrical energy, Output or target parameters relating to a particular sub-units, INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY, CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE, Adaptations for driving cycles by electric motor, Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes, Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes having their pistons and displacers each in separate cylinders, FLUID HEATERS, e.g. SAE International's core competencies are life-long learning and voluntary consensus standards development.
No. The present invention pertains to hybrid electric vehicles utilizing an external combustion engine and in particular, a Stirling cycle engine. In response to energy and environmental issues and concerns, hybrid electric vehicles, such as buses and cars, have been developed in an attempt to provide efficient, low emission vehicles. PATENTED CASE, Free format text: The Stirling cycle engine and generator combination. Request Permissions, Luis Figueroa, Owen R. Fauvel and Graham T. Reader, Read Online (Free) relies on page scans, which are not currently available to screen readers. Hybrid Vehicles have gained momentum in the automotive industry. Hybrid Vehicles have gained momentum in the automotive industry. The air flow rate may be adjusted, for example, in response to a change in the fuel flow rate or a change in the air preheat temperature.
stirling engine The internal combustion engine, dominant of the vehicle market, has been the option of choice for auxiliary power unit of the hybrid vehicle, although other power sources as fuel cells, Stirling engines and gas turbines have been employed as well [1]. As described above, the optimal fuel-air ratio of the fuel-air mixture decreases as the temperature of the preheated air increases. In a preferred embodiment, the battery is a lead-acid battery. Terms of Use and Privacy Statement, Future Transportation Technology Conference & Exposition. MacDowell coupled the engine with existing hybrid technology, creating a system that will deliver 58 miles per gallon to a Ford F-150 and at least 100 miles per gallon in a smaller SUV.
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