US3759041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhaust water separator for marine engines
Assignee: Brunswick Corp
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Filing: 1972-01-17
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Granted: 1973-09-18
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Expires: 1992-01-17
Abstract
Abstract A water separator for a marine propulsion system. Arcuate exhaust elbows are provided which force cooling water in the exhaust to the outside by centrifugal action. This water is removed and expelled through the transom.
Inventors
- 👤 I North
- 👤 H Bankstahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:02
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/12; F01N13/08; F01N13/085; F02; F02B; F02B61/00; F02B61/04; F02B61/045; Y; Y10; Y10S; Y10S55/00; Y10S55/30
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
108 words
In a marine device having a water cooled internal combustion engine, passage means for passing exhaust from the engine to an exhaust outlet, and means for injecting cooling water from the engine into the exhaust passage means, the improvement comprising a water separator in the passage means downstream from the injecting means and upstream from the exhaust outlet, said separator including a water passage means in communication with the exhaust passage means in an area of primarily water flow for separating and expelling a substantial portion of the water from the passage means without substantially interfering with exhaust flow, said separator being operable without regard to engine speed.
Claim 2
Dependent Claim
108 words
In a marine device having a water cooled internal combustion engine, passage means for passing exhaust from the engine to an exhaust outlet, and means for injecting cooling water from the engine into the exhaust passage means, the improvement comprising a water separator in the passage means downstream from the injecting means and upstream from the exhaust outlet, said separator including a water passage means in communication with the exhaust passage means in an area of primarily water flow for separating and expelling a substantial portion of the water from the passage means without substantially interfering with exhaust flow, said separator being operable without regard to engine speed.
Claim 3
Dependent Claim
18 words
The improvement of claim 1, wherein said separator includes a raised wall portion to aid in water separation.
Claim 4
Dependent Claim
43 words
The improvement of claim 1, including an arcuate member which forms part of the exhuast passage means such that the water is forced to the outside of said member by centrifugal action, said member being upstream from and connected to said water separator.
Claim 5
Dependent Claim
18 words
The improvement of claim 3, wherein said separator includes a raised wall portion to aid in water separation.
Claim 6
Dependent Claim
38 words
The improvement of claim 3, wherein said arcuate member is generally vertically disposed and connected to the engine at the top such that water is forced to the outside of saiD member by the additional affects of gravity.
Claim 7
Dependent Claim
71 words
The improvement of claim 1, wherein said passage means are formed in part by an arcuate exhaust elbow connected at one end to said engine such that water is forced to the outside of said elbow by centrifugal action and said separator is connected to the other end of said elbow, said water passage means being positioned to pick up and expel the water flowing on the outside of said elbow.
Claim 8
Dependent Claim
18 words
The improvement of claim 6, wherein said separator includes a raised wall portion to aid in water separation.
Claim 9
Dependent Claim
38 words
The improvement of claim 6, wherein said arcuate member is generally vertically disposed and connected to the engine at the top such that water is forced to the outside of said member by the additional affects of gravity.
Claim 10
Dependent Claim
38 words
The improvement of claim 3, wherein said arcuate member is generally vertically disposed and connected to the engine at the top such that water is forced to the outside of said member by the additional affects of gravity.
Claim 11
Dependent Claim
18 words
The improvement of claim 9, wherein said separator includes a raised wall portion to aid in water separation.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |