US4367626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbocharger systems
Assignee: Individual
•
Filing: 1979-07-16
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Granted: 1983-01-11
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Expires: 1999-07-16
Abstract
Abstract A turbocharger system includes a compressor driven by a turbine and a mixing device so connected that a portion of the outlet of the compressor is mixed with a portion of the exhaust gas of the combustion engine and is used to power the turbine. In one form the mixing device is an ejector and in another form, the compressor, turbine and mixing device are a unitary structure. Also described is a turboejector and a system is which a heat exchanger is used to preheat the compressor air prior to admixture with the engine exhaust gas. Various forms and structures are described.
Inventors
- 👤 Everett H. Schwartzman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:50
CPC Classifications
F; F01; F01D; F01D17/00; F01D17/10; F01D17/12; F01D17/14; F01D17/141; F02; F02B; F02B37/00; F02B37/12; F02B37/16; F02C; F02C3/00; F02C3/32; F02C7/00; F02C7/08; F05; F05D; F05D2220/00; F05D2220/40; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
210 words
A turbocharger system for a combustion engine comprising: a compressor having an ambient air inlet and a compressed air outlet, a turbine having an inlet for driving fluid and an outlet, ejector mixing means having a first and second inlet and an outlet, the outlet of said ejector mixing means being connected to the inlet of said turbine, means connected to receive the compressed air from the outlet of said compressor and for flowing one portion thereof to the combustion engine and another portion thereof to said first inlet of said ejector mixing means, means to flow exhaust gas from the combustion engine to said second inlet of said ejector mixing means, said ejector mixing means including ejector nozzle means cooperating with said first and second inlets whereby the engine exhaust gas is admixed with the other portion of the compressor output in said nozzle means to form a turbine drive fluid which flows out of said ejector mixing means outlet; a said ejector nozzle means being movable with respect to said first and second inlets and including a primary nozzle and a secondary nozzle and wherein the area of one is increased as the area of the other is decreased, and means connecting said turbine to drive said compressor.
Claim 2
Dependent Claim
210 words
A turbocharger system for a combustion engine comprising: a compressor having an ambient air inlet and a compressed air outlet, a turbine having an inlet for driving fluid and an outlet, ejector mixing means having a first and second inlet and an outlet, the outlet of said ejector mixing means being connected to the inlet of said turbine, means connected to receive the compressed air from the outlet of said compressor and for flowing one portion thereof to the combustion engine and another portion thereof to said first inlet of said ejector mixing means, means to flow exhaust gas from the combustion engine to said second inlet of said ejector mixing means, said ejector mixing means including ejector nozzle means cooperating with said first and second inlets whereby the engine exhaust gas is admixed with the other portion of the compressor output in said nozzle means to form a turbine drive fluid which flows out of said ejector mixing means outlet; a said ejector nozzle means being movable with respect to said first and second inlets and including a primary nozzle and a secondary nozzle and wherein the area of one is increased as the area of the other is decreased, and means connecting said turbine to drive said compressor.
Claim 3
Dependent Claim
35 words
A turbocharger as set forth in claim 1 wherein said turbocharger includes turbine inlet flow nozzles, said housing including a recessed region, and said nozzles including (recessed) radial type vanes located in said recessed region.
Claim 4
Dependent Claim
30 words
A turbocharger as set forth in claim 1, wherein said compressor includes (axial) compressor diffuser vanes arranged axially with respect to the means connecting the turbine to drive said compressor.
Claim 5
Dependent Claim
27 words
A turbocharger system as set forth in claim 1 wherein said ejector mixing means includes ejector nozzle means movable with respect to said first and second inlets.
Claim 6
Dependent Claim
71 words
A turbocharger system as set forth in claim 1 further including common housing means for said turbine, compressor and ejector means, said ejector means being a flow divider plate supported by said housing and movable between said turbine and compressor, means in said housing forming a mixing region for the exhaust gas and said other portion of said compressor output, and inlet flow nozzles being mounted on said flow divider plate.
Claim 7
Dependent Claim
83 words
A turbocharger system as set forth in claim 1 wherein said ejector mixing means is a turboejector including a housing which supports turbine means and ejector means, said housing including inlet means for said turbine means and for said ejector means and an outlet, the outlet of said turboejector being connected to the inlet of said turbine, and said inlet means of said turboejector being connected to receive exhaust flow from said engine and said other portion of the output of said compressor.
Claim 8
Dependent Claim
35 words
A turbocharger as set forth in claim 6 further including a heat exchanger, and said heat exchanger being operative to heat at least a portion of the compressor output prior to entry into the turbine.
Claim 9
Dependent Claim
49 words
A turbocharger system as set forth in claim 1 further including common housing means for said turbine, compressor and ejector mixing means, said ejector mixing means being supported in said housing between said turbine and said compressor, and said ejector nozzle means being movable between said turbine and compressor.
Claim 10
Dependent Claim
15 words
A turbocharger system as set forth in claim 8 wherein said compressor includes a diffuser.
Claim 11
Dependent Claim
15 words
A turbocharger as set forth in claim 9 wherein said diffuser is a vaned diffuser.
Claim 12
Dependent Claim
15 words
A turbocharger as set forth in claim 9 wherein said diffuser is a vaneless diffuser.
Claim 13
Dependent Claim
28 words
A turbocharger as set forth in claim 8 further including means to preheat a portion of the compressor output prior to flow of the same into said turbine.
Claim 14
Dependent Claim
35 words
A turbocharger system as set forth in claim 8 wherein said ejector nozzle means is a variable area nozzle and includes a flow divider plate and inlet flow nozzles for directing flow to said turbine.
Claim 15
Dependent Claim
31 words
A turbocharger as set forth in claim 8 further including a heat exchanger for receiving a portion of the compressor output to heat the same prior to flow into the turbine.
Claim 16
Dependent Claim
26 words
A turbocharger as set forth in claim 14 wherein said heat exchanger is a regenerative heat exchanger in which the turbine exhaust forms the heat source.
Claim 17
Dependent Claim
29 words
A turbocharger as set forth in claim 14 wherein said heat exchanger is connected to heat a portion of the compressor output prior to mixture with the engine exhaust.
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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) | 1986-01-10 | 1986-07-12 | 1987-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-10 | 1990-07-12 | 1991-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-10 | 1994-07-12 | 1995-01-11 | $7700.00 | Window Closed / Lapsed |