Exhaust heat recovery system
US-2016138532-A1 · May 19, 2016 · US
Method of controlling turbine of exhaust heat recovery system
US10273831B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10273831-B2 |
| Application number | US-201514872688-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 1, 2015 |
| Priority date | Nov 18, 2014 |
| Publication date | Apr 30, 2019 |
| Grant date | Apr 30, 2019 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A method of controlling a turbine of an exhaust heat recovery system in which heat of exhaust gas evaporates a working fluid through a heat exchanger provided in an exhaust pipe and the working fluid is supplied to the turbine may include measuring an internal temperature of the heat exchanger, and rotating the turbine in a reverse direction when the measured internal temperature is a predetermined temperature or less.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of controlling a turbine of an exhaust heat recovery system in which heat of exhaust gas evaporates a working fluid through a heat exchanger provided in an exhaust pipe and the working fluid is supplied to the turbine, comprising: measuring an internal temperature of the heat exchanger; and rotating the turbine in a reverse direction when the measured internal temperature is equal to a predetermined temperature or less, wherein after the turbine is reversely operated, it is confirmed whether the working fluid is reversely introduced from the turbine to the heat exchanger, and wherein after the working fluid is reversely introduced from the turbine to the heat exchanger, the reverse operation of the turbine is continued. 2. The method of controlling the turbine of the exhaust heat recovery system according to claim 1 , wherein after start-up, the internal temperature of the heat exchanger is measured, and the turbine is reversely operated when a measured value is less than a predetermined value. 3. The method of controlling the turbine of the exhaust heat recovery system according to claim 1 , wherein when the working fluid is not reversely introduced from the turbine to the heat exchanger and the internal temperature of the heat exchanger exceeds a threshold value, a pump pressurizing the working fluid and injecting the pressurized working fluid to the heat exchanger is operated. 4. The method of controlling the turbine of the exhaust heat recovery system according to claim 3 , wherein the turbine receives a torque from the working fluid to generate electric power. 5. The method of controlling the turbine of the exhaust heat recovery system according to claim 3 , wherein when the working fluid is not reversely introduced from the turbine to the heat exchanger and the internal temperature of the heat exchanger is less than the threshold value, the pump pressurizing the working fluid and injecting the pressurized working fluid to the heat exchanger is not operated. 6. A method of controlling a turbine of an exhaust heat recovery system, comprising: measuring an internal temperature of a heat exchanger after start-up; reversely operating the turbine when the internal temperature of the heat exchanger is less than a predetermined value; and confirming whether a working fluid is reversely introduced from the turbine to the heat exchanger, wherein after the working fluid is reversely introduced from the turbine to the heat exchanger, the reverse operation of the turbine is continued. 7. The method of controlling the turbine of the exhaust heat recovery system according to claim 6 , wherein when the working fluid is not reversely introduced from the turbine to the heat exchanger and the internal temperature of the heat exchanger exceeds a threshold value, a pump pressurizing the working fluid and injecting the pressurized working fluid to the heat exchanger is operated, and the turbine receives a torque from the working fluid to generate electric power. 8. The method of controlling the turbine of the exhaust heat recovery system according to claim 6 , wherein when the working fluid is not reversely introduced from the turbine to the heat exchanger and the internal temperature of the heat exchanger is less than a threshold value, a pump pressurizing the working fluid and injecting the pressurized working fluid to the heat exchanger is not operated.
Assignees
Inventors
Classifications
with liquid-cooled heat exchangers · CPC title
with coolers having bypasses · CPC title
- F01N5/02Primary
the devices using heat · CPC title
EGR valves combined with other devices, e.g. with intake valves or compressors (combined with intake air throttles F02M26/64) · CPC title
High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the compressor · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10273831B2 cover?
- A method of controlling a turbine of an exhaust heat recovery system in which heat of exhaust gas evaporates a working fluid through a heat exchanger provided in an exhaust pipe and the working fluid is supplied to the turbine may include measuring an internal temperature of the heat exchanger, and rotating the turbine in a reverse direction when the measured internal temperature is a predeterm…
- Who is the assignee on this patent?
- Hyundai Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F01N5/02. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Apr 30 2019 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).