Liquid-cooled cylinder head
US-11905909-B2 · Feb 20, 2024 · US
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Methods for avoiding thermal stress-induced cracks in the zone between valve seat openings
Methods for avoiding thermal stress-induced cracks in the zone between valve seat openings · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F02F2001/248 |
| Official title | {Methods for avoiding thermal stress-induced cracks in the zone between valve seat openings} |
| Display label | Methods for avoiding thermal stress-induced cracks in the zone between valve seat openings |
| Total patents | 22 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 6 |
| 2017 | 1 |
| 2018 | 4 |
| 2019 | 4 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 2 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Liquid-cooled cylinder head
US-2023175455-A1 · Jun 8, 2023 · US
Liquid-cooled cylinder head
US-11598283-B2 · Mar 7, 2023 · US
Liquid-cooled cylinder head
US-2022082062-A1 · Mar 17, 2022 · US
Nested cylinder head
US-11199154-B1 · Dec 14, 2021 · US
Semi-compliant coating for thermal expansion absorption
US-10519896-B2 · Dec 31, 2019 · US
Cylinder head for an internal combustion engine
US-10408162-B2 · Sep 10, 2019 · US
Cylinder head for one internal combustion engine
US-2019186409-A1 · Jun 20, 2019 · US
Cooling system
US-10267211-B2 · Apr 23, 2019 · US
Semi-compliant coating for thermal expansion absorption
US-2018334991-A1 · Nov 22, 2018 · US
Hybrid composite cylinder head
US-10060385-B2 · Aug 28, 2018 · US
Method of repairing a cracked head using an injector bore insert
US-9976530-B2 · May 22, 2018 · US
Hybrid composite cylinder head
US-2018030920-A1 · Feb 1, 2018 · US
Cooling system
US-2017284279-A1 · Oct 5, 2017 · US
Method, System and Apparatus for Dissipating Heat in Cylinder Head
US-2016341146-A1 · Nov 24, 2016 · US
Method of repairing a cracked head using an injector bore insert
US-2016258406-A1 · Sep 8, 2016 · US
Cylinder head assembly having cooled valve insert
US-9422886-B2 · Aug 23, 2016 · US
Method of repairing a cracked head using an injector bore insert
US-9370845-B2 · Jun 21, 2016 · US
Cylinder Head for an Internal Combustion Engine
US-2016123271-A1 · May 5, 2016 · US
Engine combustion chamber structure, and inner wall structure of through channel
US-9284911-B2 · Mar 15, 2016 · US