Patent DE665409C successfully refreshed from Google Patents.
Patent US3607155A successfully refreshed from Google Patents.
US3607155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction pipe for an internal combustion engine with a spray carburetor
Assignee: Audi AG
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Filing: 1969-11-20
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Granted: 1971-09-21
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Expires: 1989-11-20
Abstract
Abstract A suction pipe for an internal combustion engine with a spray carburetor having two parallel mixing chambers each of which has a conduit for the mixture. The suction pipe is particularly characterized by a channel joining the mixing chamber of the first stage and extending below a widened conduit connected to the second stage. The channel is provided with inserts which produce eddies and its projection upon an imaginary horizontal plane is perpendicular to the projection of the widened portions of the conduit.
Inventors
- 👤 Georg Faltermeier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 04:19
CPC Classifications
F; F02; F02M; F02M1/00; F02M2700/00; F02M2700/43; F02M2700/4302; F02M2700/4392
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
17 words
A device in accordance with claim 1, wherein said channel has a bottom wall carrying said inserts.
Claim 2
Dependent Claim
16 words
A device in accordance with claim 2, wherein said inserts are cast upon said bottom wall.
Claim 3
Dependent Claim
20 words
A device in accordance with claim 2, comprising a removable cover, said bottom wall being a part of said cover.
Claim 4
Dependent Claim
30 words
A device in accordance with claim 1, wherein said inserts consist of V-shaped profiled rods, the vortex of the V extending in the direction of flow of the combustion mixture.
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) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |