Fluid valve system
US-2024263710-A1 · Aug 8, 2024 · US
Powertrain cooling system with cooling flow modes
US8978596B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8978596-B2 |
| Application number | US-201213537137-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 29, 2012 |
| Priority date | Jun 29, 2012 |
| Publication date | Mar 17, 2015 |
| Grant date | Mar 17, 2015 |
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Abstract
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A powertrain cooling system includes a coolant pump and coolant flow passages. A first three-position valve is operatively connected with an outlet of the coolant pump and has a first, a second, and a third position to at least partially establish different coolant flow modes through the coolant flow passages. Coolant flow from the coolant pump is blocked from both the cylinder head and the engine block in a first coolant flow mode when the three-position valve is in the first position. Coolant flow from the coolant pump is provided to the cylinder head and is blocked from the engine block in a second coolant flow mode when the three-position valve is in the second position. Coolant flows from the coolant pump to the engine block and from the engine block to the cylinder head in a third coolant flow mode when the three-position valve is in the third position.
First claim
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The invention claimed is: 1. A powertrain cooling system for a powertrain that has an engine with a cylinder head and an engine block and has a transmission connected to the engine, the powertrain cooling system comprising: a coolant pump; a plurality of coolant flow passages; a first three-position valve operatively connected with an outlet of the coolant pump and having a first, a second, and a third position to at least partially establish different coolant flow modes throu…
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Frequently asked questions
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- What does patent US8978596B2 cover?
- A powertrain cooling system includes a coolant pump and coolant flow passages. A first three-position valve is operatively connected with an outlet of the coolant pump and has a first, a second, and a third position to at least partially establish different coolant flow modes through the coolant flow passages. Coolant flow from the coolant pump is blocked from both the cylinder head and the eng…
- Who is the assignee on this patent?
- Glassford Daniel B, Gm Global Tech Operations Inc
- What technology area does this patent fall under?
- Primary CPC classification F01P7/14. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Mar 17 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).