Device and method for controlling variable compression ratio internal combustion engine
US-2015330315-A1 · Nov 19, 2015 · US
Variable compression ratio apparatus
US2015114356A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2015114356-A1 |
| Application number | US-201414447294-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jul 30, 2014 |
| Priority date | Oct 30, 2013 |
| Publication date | Apr 30, 2015 |
| Grant date | — |
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 variable compression ratio apparatus may include an operating unit operated by hydraulic pressure to reciprocate the plunger, an oil control valve controlling hydraulic pressure supplied to the operating unit, an oil supplying unit storing oil supplied to the operating unit via the oil control valve and transmitting the stored oil to the oil control valve, an actuator operating the oil control valve, and a controller connected with the actuator to control the actuator according to an operational state of an engine.
First claim
Opening claim text (preview).
What is claimed is: 1 . A variable compression ratio apparatus changing a volume of a combustion chamber by an operation of a plunger configured to reciprocate in a space communicating with an interior of the combustion chamber according to an operational state of an engine, the apparatus including an operating unit operated by hydraulic pressure to reciprocate the plunger, an oil control valve controlling the hydraulic pressure supplied to the operating unit, an oil supplyi…
Assignees
Inventors
Classifications
- F02B75/04Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
- F02B75/042Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2015114356A1 cover?
- A variable compression ratio apparatus may include an operating unit operated by hydraulic pressure to reciprocate the plunger, an oil control valve controlling hydraulic pressure supplied to the operating unit, an oil supplying unit storing oil supplied to the operating unit via the oil control valve and transmitting the stored oil to the oil control valve, an actuator operating the oil contro…
- Who is the assignee on this patent?
- Hyundai Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F02B75/04. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Apr 30 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).