Cam follower system for engine
US-9222376-B2 · Dec 29, 2015 · US
Valve system
US9068477B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9068477-B2 |
| Application number | US-201314045164-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 3, 2013 |
| Priority date | Apr 12, 2011 |
| Publication date | Jun 30, 2015 |
| Grant date | Jun 30, 2015 |
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Abstract
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A valve system for providing closing force to one or more valves of an engine is provided. In one example, the system comprises a first tappet bore in fluid communication with a second tappet bore via a bidirectional oil passage. The system may provide valve closing forces to assist in the closing of valves coupled to the tappet bores, lowering required valve spring forces.
First claim
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The invention claimed is: 1. A method for controlling valve operation, comprising: pumping oil from a first tappet of a first cylinder to a second tappet of a second cylinder, and from the second tappet to the first tappet, without returning the oil to an oil sump, the first tappet and a valve of the first cylinder arranged in a first bore and the second tappet and a valve of the second cylinder arranged in a second bore. 2. The method of claim 1 , where the…
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Frequently asked questions
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- What does patent US9068477B2 cover?
- A valve system for providing closing force to one or more valves of an engine is provided. In one example, the system comprises a first tappet bore in fluid communication with a second tappet bore via a bidirectional oil passage. The system may provide valve closing forces to assist in the closing of valves coupled to the tappet bores, lowering required valve spring forces.
- Who is the assignee on this patent?
- Ford Global Tech Llc
- What technology area does this patent fall under?
- Primary CPC classification F01L1/14. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jun 30 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).