US3817221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for disposal of liquid of condensation in exhaust gases
Assignee: Toyota Motor Corp
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Filing: 1972-04-17
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Granted: 1974-06-18
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Expires: 1992-04-17
Abstract
Abstract This invention relates to a device for disposal of liquid of condensation in exhaust gases of an internal combustion engine prior to recirculation of a portion of the exhaust gases to the engine. Said device comprises at least one trap mounted at a suitable position in an exhaust gas passageway for liquid for catching liquid formed by condensation of moisture in exhaust gases, and piping connecting said trap to a suction system of the internal combustion engine. Said liquid is recirculated to a combustion chamber by the negative pressure of air drawn by suction into the combustion chamber.
Inventors
- 👤 H Nohira
- 👤 K Tomita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:50
CPC Classifications
F; F02; F02M; F02M25/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
117 words
Apparatus comprising an internal combustion engine having an inlet system including a suction means and an exhaust pipe for exhaust gases, wherein the improvement comprises an exhaust gas recirculation system connected to said inlet system, an air cleaner disposed in said exhaust gas recirculation system, said exhaust gas recirculation system including a trap for catching condensate liquid removed from the recirculating exhaust gas prior to passage to said intake system, said trap being located at an outlet of said air cleaner, and piping connecting said trap to said suction means of the internal combustion engine to recirculate the liquid condensate to a combustion chamber by the negative pressure of air drawn by suction into said combustion chamber.
Claim 2
Dependent Claim
117 words
Apparatus comprising an internal combustion engine having an inlet system including a suction means and an exhaust pipe for exhaust gases, wherein the improvement comprises an exhaust gas recirculation system connected to said inlet system, an air cleaner disposed in said exhaust gas recirculation system, said exhaust gas recirculation system including a trap for catching condensate liquid removed from the recirculating exhaust gas prior to passage to said intake system, said trap being located at an outlet of said air cleaner, and piping connecting said trap to said suction means of the internal combustion engine to recirculate the liquid condensate to a combustion chamber by the negative pressure of air drawn by suction into said combustion chamber.
Claim 3
Dependent Claim
109 words
Apparatus comprising an internal combustion engine having an inlet system including a suction means and an exhaust pipe for exhaust gases, wherein the improvement comprises an exhaust gas recirculation system connected to said exhauSt pipe to recirculate a portion of the exhaust gases to said inlet system, an air cleaner disposed in said exhaust gas recirculation system, said exhaust gas recirculation system including means constituting a part of said exhaust gas recirculation system for cooling, removing dust from, and filtering said recirculating exhaust gases, a trap connected to each of said cooling, dust removing and filtering means and means to recirculate liquid from said traps to said inlet system.
Claim 4
Dependent Claim
109 words
Apparatus comprising an internal combustion engine having an inlet system including a suction means and an exhaust pipe for exhaust gases, wherein the improvement comprises an exhaust gas recirculation system connected to said exhauSt pipe to recirculate a portion of the exhaust gases to said inlet system, an air cleaner disposed in said exhaust gas recirculation system, said exhaust gas recirculation system including means constituting a part of said exhaust gas recirculation system for cooling, removing dust from, and filtering said recirculating exhaust gases, a trap connected to each of said cooling, dust removing and filtering means and means to recirculate liquid from said traps to said inlet system.
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) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |