# US 9,518,507 B2 · Turbo recharger > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,518,507 B2 - Document ID: US9518507B2 - Status: Granted - Kind: B2 - Application number: 14/951,373 - Filed: 2015-11-24 - Published: 2016-03-24 - Granted: 2016-12-13 - Earliest claimed: 2013-02-15 - Applicants: Alexander Wong - Inventors: Alexander Wong - Web page: https://patentgrep.com/patent/US9518507B2 ## CPC - F02B 37/005: {Exhaust driven pumps being combined with an exhaust driven auxiliary apparatus, e.g. a ventilator} - B60K 6/26: characterised by the motors or the generators - B60W 20/13: in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion - B60W 20/19: for achieving enhanced acceleration - F01N 5/04: the devices using kinetic energy - F02B 33/40: of non-positive-displacement type - F02B 37/186: {Arrangements of actuators or linkage for bypass valves} - F02B 39/10: electric - F02B 41/10: in exhaust turbines (use of exhaust turbines for charging F02B37/00) - F02B 63/04: for electric generators - F02D 41/10: for acceleration - B60W 2510/0633: Turbocharger state - B60W 2510/244: Charge state - B60W 2710/0638: Turbocharger state - B60Y 2200/92: Hybrid vehicles - F02B 37/18: by bypassing exhaust {from the inlet to the outlet of turbine or to the atmosphere} - F02D 41/0007: {for control of turbo-charged or super-charged engines (control of the pumps per se F02B37/12)} - Y02T 10/12: Improving ICE efficiencies - Y10S 903/906: Motor or generator - F02B: INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL (gas-turbine plants F02C; hot-gas or combustion-product positive-displacement engine plants F02G) - B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES - B60W: CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT - F01N: GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES (arrangements in connection with gas exhaust of propulsion units in vehicles B60K13/00; combustion-air intake silencers specially adapted for, or arranged on, internal-combustion engines F02M35/00; protecting against, or damping, noise in general G10K11/16) - F02D: CONTROLLING COMBUSTION ENGINES (vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed B60K31/00; conjoint control of vehicle sub-units of different type or different function, road vehicle drive control systems for purposes other than the control of a single sub-unit B60W) - B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION - Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ## Abstract Embodiments as described herein provide a simplified turbo recharger for an efficient, reliable, low-cost system that delivers good performance for improving efficiency of a vehicle using electric power. Embodiments as described herein may be used with electric motor, combustion engine hybrid vehicles to improve the fuel efficiencies of such vehicles. A turbine may be positioned in an exhaust stream of a vehicle that is coupled to a generator to recharge the battery of a vehicle. The turbine may include a wastegate to permit the exhaust stream to enter or bypass the turbine depending on the charge of the battery, the rate of rotation of the turbine, pressure within the turbine, the speed of the engine, or a combination of the above. ## Claims ### Claim 1 An electric hybrid vehicle, comprising: a first electric motor coupled to a battery; a combustion engine having an exhaust conduit; a turbine at least partially positioned within the exhaust conduit, the turbine coupled to a generator configured to supply a charge to the battery or current to the electric motor; and a wastegate configured to permit a fluid stream from the exhaust conduit to bypass the turbine when open and spin the turbine when closed, and configured to open when the battery is fully charged. ### Claim 2 (depends on 1) The electric hybrid vehicle of claim 1, wherein the wastegate is configured to open at low pressures and permit free flow of an exhaust stream from the combustion engine while the electric hybrid vehicle is accelerating to reduce restricting an exhaust. ### Claim 3 (depends on 1) The electric hybrid vehicle of claim 1, wherein the wastegate is configured to open at high pressure to relieve excess pressure. ### Claim 4 (depends on 1) The electric hybrid vehicle of claim 1, wherein the wastegate is computer-operated to determine an amount of opening of the wastegate. ### Claim 5 (depends on 1) The electric hybrid vehicle of claim 1, further comprising a pressure sensor to obtain a pressure within the exhaust conduit prior to the turbine, a speed sensor to obtain a rate of rotation of the turbine, a power sensor to obtain a charge of the battery, wherein a computer is configured to open the wastegate based on information obtained from the pressure sensor, the speed sensor, and the power sensor. ### Claim 6 (depends on 1) The electric hybrid vehicle of claim 1, further comprising a second electric motor coupled to the wastegate to actuate the wastegate. ### Claim 7 (depends on 1) The electric hybrid vehicle of claim 1, further comprising a gear set between the turbine and the first electric motor such that the turbine spins faster than the first electric motor. ### Claim 8 (depends on 1) The electric hybrid vehicle of claim 1, wherein the turbine and the first electric motor are directly connected such that the turbine and the first electric motor spin at comparable speeds. ### Claim 9 (depends on 1) The electric hybrid vehicle of claim 1, wherein the generator supplies a charge to the battery through a power inverted and controller. ### Claim 10 (depends on 1) The electric hybrid vehicle of claim 1, wherein the generator sends a charge to a power inverter and controller, which will then send a current to turn the electric motor. ### Claim 11 (depends on 1) The electric hybrid vehicle of claim 1, wherein the exhaust conduit branches into a first section in which the turbine is positioned, and a second portion in which the wastegate is positioned, wherein the second portion provides a bypass path around the turbine. ### Claim 12 (depends on 11) The electric hybrid vehicle of claim 11, wherein the wastegate is in the second portion of the exhaust conduit and comprises a gate valve having an outer perimeter corresponding with an interior perimeter of the second portion of the exhaust conduit. ### Claim 13 (depends on 12) The electric hybrid vehicle of claim 12, wherein the gate valve is hinged to the exhaust conduit such that rotation of the gate valve opens and closes the wastegate. ### Claim 14 (depends on 13) The electric hybrid vehicle of claim 13, wherein the gate valve is coupled to the second electric motor wherein the second electric motor is controlled by a computer. ### Claim 15 (depends on 1) The electric hybrid vehicle of claim 1, wherein the exhaust conduit comprises a first portion of reduced dimension directly adjacent the combustion engine and a second portion of increased dimension directly upstream of the turbine to reduce a pressure of the exhaust gases at a turbine inlet compared to a combustion engine outlet. ### Claim 16 (depends on 15) The electric hybrid vehicle of claim 15, wherein the exhaust conduit comprises a bypass portion from the first portion that provides an alternate exit path for exhaust fluids from the combustion engine without engaging the turbine. ### Claim 17 (depends on 16) The electric hybrid vehicle of claim 16, wherein the bypass portion comprises a wastegate to selectively open and close the bypass portion to exhaust fluids. ### Claim 18 A turbo recharger system, comprising: an electric motor coupled to a battery of a vehicle; a turbine configured to be at least partially positioned within an exhaust conduit of a combustion engine, the turbine coupled to a generator configured to supply a charge to the battery or current to the electric motor; and a wastegate configured to permit a fluid stream from the exhaust conduit to bypass the turbine in a first position and spin the turbine in a second position, and configured to be positioned in the first position when the battery is fully charged. ### Claim 19 A method of increasing the efficiency of a hybrid vehicle comprising: positioning a turbine at least partially within an exhaust conduit of the vehicle engine; coupling the turbine to a generator configured to supply charge to a battery or an electric motor of the vehicle; positioning a wastegate within a conduit which bypasses the turbine; configuring the wastegate to permit the exhaust fluid stream to bypass the turbine when open and spin the turbine when closed; and configuring the wastegate to open when the battery is fully charged.