Internal combustion engine system
US-10704447-B2 · Jul 7, 2020 · US
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Air intake passage surrounding the exhaust gas passage; Exhaust gas passage surrounding the air intake passage
Air intake passage surrounding the exhaust gas passage; Exhaust gas passage surrounding the air intake passage · 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 | F02M31/093 |
| Official title | Air intake passage surrounding the exhaust gas passage; Exhaust gas passage surrounding the air intake passage |
| Display label | Air intake passage surrounding the exhaust gas passage; Exhaust gas passage surrounding the air intake passage |
| Total patents | 7 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears to be declining based on the most recent years.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 3 |
| 2020 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fuel preheater for internal combustion engine
US-10161363-B1 · Dec 25, 2018 · US
An internal combustion engine system
US-2018363535-A1 · Dec 20, 2018 · US
Intake air temperature control apparatus for vehicle engine
US-9863378-B2 · Jan 9, 2018 · US
Engine intake system and method for operating same
US-9695786-B2 · Jul 4, 2017 · US
Intake air temperature control apparatus for vehicle engine
US-2016281655-A1 · Sep 29, 2016 · US
Engine Intake System and Method for Operating Same
US-2016201617-A1 · Jul 14, 2016 · US