Internal combustion engine having an exhaust heat recovery system as well as a method for recovering exhaust heat
US-2020392883-A1 · Dec 17, 2020 · US
Electric vehicle with energy recovery system
US12040689B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12040689-B2 |
| Application number | US-202217835797-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 8, 2022 |
| Priority date | Jun 9, 2021 |
| Publication date | Jul 16, 2024 |
| Grant date | Jul 16, 2024 |
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- Title
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Abstract
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A vehicle may include an electromechanical energy recovery system and be configured to perform a method for its operation.
First claim
Opening claim text (preview).
The invention claimed is: 1. An electric vehicle, comprising: a device for converting waste heat of at least one electrical machine and/or at least one energy accumulator of the electric vehicle into mechanical and/or electrical energy, wherein the device for converting waste heat into mechanical and/or electrical energy comprises a combi-generator, encompassing a gas-operated, pneumatic, mechanical linear motor and an electrical machine mechanically coupleable to the combi-generator, and wherein a piston rod of a linear piston of the gas-operated, pneumatic, mechanical linear motor is axially mounted in freewheels with guide curves, which convert a linear movement of the piston rod into a rotary movement of a rotor of the electrical machine. 2. The electric vehicle according to claim 1 , wherein the at least one energy accumulator comprises at least one high-voltage battery. 3. The electric vehicle according to claim 1 , wherein the at least one energy accumulator comprises at least one fuel cell. 4. The electric vehicle according to claim 1 , wherein the device for converting of waste heat into mechanical and/or electrical energy comprises a circuit, in which a working medium circulates, which has a boiling point of not more than 80° C. at 1013.25 hPa. 5. The electric vehicle according to claim 4 , wherein the working medium is carbon dioxide. 6. The electric vehicle according to claim 4 , wherein the working medium is ethanol. 7. A method for operating an electric vehicle, comprising: converting waste heat of at least one electrical machine and/or at least one energy accumulator of the electric vehicle into mechanical energy, and utilizing the mechanical energy to drive the electric vehicle; and/or converting waste heat of the at least one electrical machine and/or the at least one energy accumulator of the electric vehicle into electrical energy, and supplying the electrical energy to at least one electrical machine and/or at least one energy accumulator of the electric vehicle, wherein the device for converting waste heat into mechanical and/or electrical energy comprises a combi-generator, encompassing a gas-operated, pneumatic, mechanical linear motor and an electrical machine mechanically coupleable to the combi-generator, and wherein a piston rod of a linear piston of the gas-operated, pneumatic, mechanical linear motor is axially mounted in freewheels with guide curves, which convert a linear movement of the piston rod into a rotary movement of a rotor of the electrical machine. 8. The method according to claim 7 , in which the waste heat is used to evaporate a working medium and the gaseous working medium drives a combi-generator or an expander.
Assignees
Inventors
Classifications
Energy storage systems for electromobility, e.g. batteries · CPC title
One-way clutches or freewheel devices · CPC title
characterised by chargeable mechanical accumulators, e.g. flywheels · CPC title
Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means · CPC title
Linear electric generators · CPC title
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Frequently asked questions
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- What does patent US12040689B2 cover?
- A vehicle may include an electromechanical energy recovery system and be configured to perform a method for its operation.
- Who is the assignee on this patent?
- Audi Ag
- What technology area does this patent fall under?
- Primary CPC classification H02K7/1884. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jul 16 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).