Patent US4060333A successfully refreshed from Google Patents.
Patent US4196593A successfully refreshed from Google Patents.
US4196593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine supercharger set
Assignee: Everllence France SAS
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Filing: 1977-11-16
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Granted: 1980-04-08
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Expires: 1997-11-16
Abstract
Abstract A supercharger set for internal combustion engines comprising two turboblowers the two axes of which being mutually perpendicular. The high-pressure turbine is mechanically coupled to the high-pressure compressor, whereas the low-pressure turbine is mechanically coupled to the low-pressure compressor. A single casing is used for the egress of the gases from the high-pressure turbine and their ingress into the low-pressure turbine.
Inventors
- 👤 Jacques E. M. Froeliger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:30
CPC Classifications
F; F02; F02B; F02B37/00; F02B37/013; F02B37/004; F05; F05B; F05B2220/00; F05B2220/40; F05B2250/00; F05B2250/30; F05B2250/31; F05B2250/313; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
180 words
In a two-stage exhaust-gas driven supercharger set for an internal combustion engine having an inlet manifold and an exhaust manifold, the supercharger set including a high-pressure turbocompressor having a high-pressure turbine mounted on a common first shaft with a high-pressure compressor, and a low-pressure turbocompressor having a low-pressure turbine mounted on a common second shaft with a low-pressure compressor, the axes of the first and second shafts being mutually perpendicular, the inlet of the high-pressure turbine being connected to the exhaust manifold, the outlet of the high-pressure turbine being connected to the inlet of the low-pressure turbine, the outlet of the low-pressure compressor being connected in series with the inlet of the high-pressure compressor, and the outlet of the high-pressure compressor being connected in series with the inlet manifold, the improved arrangement comprising: a single casing directly connecting the outlet of the high-pressure turbine to the inlet of the low-pressure turbine and wherein the single casing feeds exhaust gases from a circumferential outlet of the high-pressure turbine in a straight line directly into an axial inlet of the low-pressure turbine.
Claim 2
Dependent Claim
180 words
In a two-stage exhaust-gas driven supercharger set for an internal combustion engine having an inlet manifold and an exhaust manifold, the supercharger set including a high-pressure turbocompressor having a high-pressure turbine mounted on a common first shaft with a high-pressure compressor, and a low-pressure turbocompressor having a low-pressure turbine mounted on a common second shaft with a low-pressure compressor, the axes of the first and second shafts being mutually perpendicular, the inlet of the high-pressure turbine being connected to the exhaust manifold, the outlet of the high-pressure turbine being connected to the inlet of the low-pressure turbine, the outlet of the low-pressure compressor being connected in series with the inlet of the high-pressure compressor, and the outlet of the high-pressure compressor being connected in series with the inlet manifold, the improved arrangement comprising: a single casing directly connecting the outlet of the high-pressure turbine to the inlet of the low-pressure turbine and wherein the single casing feeds exhaust gases from a circumferential outlet of the high-pressure turbine in a straight line directly into an axial inlet of the low-pressure turbine.
Claim 3
Dependent Claim
37 words
A supercharger set according to claim 1 further comprising an intermediate cooler mounted in series between the low-pressure compressor and the high-pressure compressor and a final cooler mounted in the intake manifold downstream of the high-pressure compressor.
Claim 4
Dependent Claim
32 words
A supercharger set according to claim 1 wherein the turbine inlet and the compressor inlet of both the high-pressure and the low-pressure turbocompressors are coaxial with the respective first and second shafts.
Claim 5
Dependent Claim
24 words
A supercharger set according to claim 3 wherein both the high-pressure and the low-pressure turbocompressors comprise an axial flow turbine and a centrifugal compressor.
Claim 6
Dependent Claim
45 words
A supercharger set according to claim 3 wherein the inlet to the low-pressure compressor faces in the opposite direction to the outlet of the high-pressure compressor, and the outlet of the low-pressure compressor faces in the same direction as the inlet to the high-pressure compressor.
References Cited (Backward Citations)
FR1397178A
Cited
US4032262A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-04-08 | 1983-10-08 | 1984-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-08 | 1987-10-08 | 1988-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-08 | 1991-10-08 | 1992-04-08 | $7700.00 | Window Closed / Lapsed |