US3828744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine crank case oil vapor condensing means
Assignee: Individual
•
Filing: 1973-04-19
•
Granted: 1974-08-13
•
Expires: 1993-04-19
Abstract
Abstract A motor vehicle having an internal combustion engine which includes a fuel-air intake manifold and an oil crank case. Means is provided for transferring emissions from the oil crank case to the fuel/air intake manifold and while so transferring the emissions cooling the same. Some of the oil vapors in the emissions, as a result of being cooled, condense and form oil driblets which are accumulated and returned to the oil crank case.
Inventors
- 👤 J Hollins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:56
CPC Classifications
F; F01; F01M; F01M13/00; F01M13/02; F01M13/021; F01M13/022; F01M13/023; F02; F02M; F02M25/00; F02M25/06; F01M13/04; F01M2013/0411; F01M5/00; F01M5/002; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
222 words
A system comprising an internal combustion engine, said internal combustion engine includIng a fuel/air intake manifold, an oil crank case, a PCV valve, a valve cover in communication with said oil crank case, a tube extending through said valve cover and in communication with the space immediately therebelow, a condensor formed by a V-shaped tube which includes a first section and a second section, said first section including a first end and a second end, said second end of said first section being at a higher elevation than said first end of said first section, said first end of said first section being in communication with said tube extending through said valve cover, said second section including a first end and a second end, said first end of said second section being at a higher elevation than said second end of said second section, said second end of said first section and said second end of said second section being connected to each other, heat conducting fins connected to said first and second sections, means connecting said first end of said second section to said PCV valve, and means connecting said PCV valve to the fuel/air intake manifold whereby oil vapors are condensed in said first and second sections forming oil driblets which by gravity are returned to the oil crank case.
Claim 2
Independent Claim
222 words
A system comprising an internal combustion engine, said internal combustion engine includIng a fuel/air intake manifold, an oil crank case, a PCV valve, a valve cover in communication with said oil crank case, a tube extending through said valve cover and in communication with the space immediately therebelow, a condensor formed by a V-shaped tube which includes a first section and a second section, said first section including a first end and a second end, said second end of said first section being at a higher elevation than said first end of said first section, said first end of said first section being in communication with said tube extending through said valve cover, said second section including a first end and a second end, said first end of said second section being at a higher elevation than said second end of said second section, said second end of said first section and said second end of said second section being connected to each other, heat conducting fins connected to said first and second sections, means connecting said first end of said second section to said PCV valve, and means connecting said PCV valve to the fuel/air intake manifold whereby oil vapors are condensed in said first and second sections forming oil driblets which by gravity are returned to the oil crank case.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-12 | 1978-02-11 | 1978-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-12 | 1982-02-11 | 1982-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-12 | 1986-02-11 | 1986-08-13 | $7700.00 | Window Closed / Lapsed |