US3797562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling systems of supercharged diesel engines
Assignee: Societe Anonime de Vehicules Industriels et dEquipements SA SAVIEM
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Filing: 1971-04-26
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Granted: 1974-03-19
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Expires: 1991-04-26
Abstract
Abstract This invention applicable notably to supercharged Diesel engines consists essentially in utilizing the engine exhaust gas having already worked in the turbine of the supercharging turbocompressor for inducing in a pump the air necessary more particularly for partially cooling the lubricating oil and the engine supercharging air.
Inventors
- 👤 M Brille
- 👤 Y Baguelin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:15
CPC Classifications
B; B60; B60K; B60K11/00; B60K11/02; F; F01; F01M; F01M5/00; F01M5/005; F01M5/007; F01P; F01P1/00; F01P1/02; F01P3/00; F01P3/20; F01P5/00; F01P5/02; F01P5/08; F01P7/00; F01P7/02; F01P7/026; F02; F02B; F02B29/00; F02B29/04; F02B29/0406; F02B29/0437; F02B29/0443; F02B29/0493; F01P2060/00; F01P2060/02; F01P2060/04; F02B3/00; F02B3/06; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
146 words
An auxiliary system for cooling diesel engines supercharged by means of a turbo-compressor driven from the engine exhaust gas which comprises: a first heat exchanger in the Line from the turbo-charger to the engine to cool the supercharged air; a second heat exchanger in the engine lubricating oil line to cool the oil; common cooling fluid means in series heat exchange relation with said first and second heat exchangers; means sensitive to the pressure of the delivery pipe of the turbo-compressor for controlling the flow rate of the common fluid in heat exchanger relation between said first and second heat exchangers; means sensitive to the temperature of the diesel system for controlling the flow rate of said common fluid; and pump means actuated by the turbo-compressor exhaust for inducing air into the auxiliary system to remove the heat absorbed by the system from the diesel engine.
Claim 2
Dependent Claim
146 words
An auxiliary system for cooling diesel engines supercharged by means of a turbo-compressor driven from the engine exhaust gas which comprises: a first heat exchanger in the Line from the turbo-charger to the engine to cool the supercharged air; a second heat exchanger in the engine lubricating oil line to cool the oil; common cooling fluid means in series heat exchange relation with said first and second heat exchangers; means sensitive to the pressure of the delivery pipe of the turbo-compressor for controlling the flow rate of the common fluid in heat exchanger relation between said first and second heat exchangers; means sensitive to the temperature of the diesel system for controlling the flow rate of said common fluid; and pump means actuated by the turbo-compressor exhaust for inducing air into the auxiliary system to remove the heat absorbed by the system from the diesel engine.
Claim 3
Dependent Claim
63 words
A system according to claim 1 wherein said cooling fluid means comprises a liquid which flows in a conduit through a third heat exchanger; said pump means induces air across said third heat exchanger to cool said liquid; and said temperature sensitive means comprising a thermostat in a branch of the liquid conduit which is responsive to the temperature of the cooling fluid.
Claim 4
Dependent Claim
99 words
A system according to claim 1 wherein said cooling fluid is air which is induced through said auxiliary system by said pump; said temperature means is responsive to the temperature in the engine lubricating oil line; and said pressure sensitive flow controlling means and said temperature sensitive flow controlling means are connected via a common linkage to a valve shutter which regulates the amount of air which enters said auxiliary system downstream of said first and second heat exchanger and before said pump whereby the amount of cooling air in the upstream portion of said auxiliary circuit is controlled.
Claim 5
Dependent Claim
64 words
A system according to claim 1 wherein said pump comprises: a circular chamber; an annular nozzle within said chamber surrounding the neck of a convergent zone through which the cooling air is caused to circulate; a circular set of rectifying blades in said annular nozzle; and means to tangentially supply the exhaust gas from the turbine of said turbo-compressor to activate said rectifying blades.
References Cited (Backward Citations)
US3355877A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |