Patent US4829939A successfully refreshed from Google Patents.
US4829939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling system for a turbo-compressor
Assignee: Volvo Car BV
•
Filing: 1987-11-19
•
Granted: 1989-05-16
•
Expires: 2007-11-19
Abstract
Abstract A cooling system for the cylinder head, the inlet manifold and/or the bearings of a turbo-compressor of a combustion engine with a liquid cooling circuit with a radiator, a thermostat and an electric fan as well as a circuit for the cooling of said cylinder head, the inlet manifold wherein the cylinder head and/or the inlet manifold and/or the bearings of a turbo-compressor to be cooled are incorporated in a cirucit (11) which is connected in series or parallel to the part of the engine liquid cooling circuit (6) between the cylinder head of the engine block (1) and the radiator (7).
Inventors
- 👤 Cornelis Veenemans
- 👤 Jan J. Goossens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:09
CPC Classifications
F; F01; F01P; F01P7/00; F01P7/14; F01P7/16; F01P7/165; F01P11/00; F01P11/14; F01P3/00; F01P3/20; F01P7/162; F02; F02B; F02B39/00; F02B39/005; F01P2025/00; F01P2025/08; F01P2025/50; F01P2025/52; F01P2031/00; F01P2031/30; F01P2060/00; F01P2060/12
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
171 words
A cooling system for a cylinder head of a combustion engine and for at least one of two means consisting of inlet manifold means with injectors and bearing means of a turbo-compressor, said cooling system having a liquid cooling circuit incorporating a circuit with a coolant pump for the cooling of said cylinder head, a thermostat and a radiator with an electric fan, the radiator being connected via a passage to said thermostat, and further incorporating a supplementary circuit with an electrically driven coolant pump and with at least one of said two means being connected to said electrically driven coolant pump, said supplementary circuit being connected mechanically parallel to said passage, said passage being provided with a non-return valve for preventing backflow of liquid through said passage when said electrically driven coolant pump is activated, and said supplementary circuit being connected to said thermostat situated upstream and to said radiator situated downstream for allowing cooling liquid to cool at least one of said two means, depending on the operating situation.
Claim 2
Dependent Claim
171 words
A cooling system for a cylinder head of a combustion engine and for at least one of two means consisting of inlet manifold means with injectors and bearing means of a turbo-compressor, said cooling system having a liquid cooling circuit incorporating a circuit with a coolant pump for the cooling of said cylinder head, a thermostat and a radiator with an electric fan, the radiator being connected via a passage to said thermostat, and further incorporating a supplementary circuit with an electrically driven coolant pump and with at least one of said two means being connected to said electrically driven coolant pump, said supplementary circuit being connected mechanically parallel to said passage, said passage being provided with a non-return valve for preventing backflow of liquid through said passage when said electrically driven coolant pump is activated, and said supplementary circuit being connected to said thermostat situated upstream and to said radiator situated downstream for allowing cooling liquid to cool at least one of said two means, depending on the operating situation.
Claim 3
Dependent Claim
204 words
A cooling system for a cylinder head of a combustion engine and for at least one of two means consisting of inlet manifold means with injectors and bearing means of a turbo-compressor, said cooling system having a liquid cooling circuit incorporating a circuit with a coolant pump for the cooling of said cylinder head, a thermostat and a radiator with an electric fan, the radiator being connected via a passage to said thermostat, and further incorporating a supplementary circuit with an electrically driven coolant pump and with at least one of said two means being connected to said electrically driven coolant pump, and with a temperature switch, which puts said electrically driven coolant pump into operation at an exit temperature of the liquid from at least one of said two means of over approximately 100° C., said supplementary circuit being connected mechanically in parallel to said passage, said passage being provided with a non-return valve for preventing backflow of liquid through said passage when said electrically driven coolant pump is activated, and said supplementary circuit being connected upstream to said thermostat and downstream to said radiator for allowing cooling liquid to cool at least one of said two means, depending on the operating situation.
Claim 4
Dependent Claim
204 words
A cooling system for a cylinder head of a combustion engine and for at least one of two means consisting of inlet manifold means with injectors and bearing means of a turbo-compressor, said cooling system having a liquid cooling circuit incorporating a circuit with a coolant pump for the cooling of said cylinder head, a thermostat and a radiator with an electric fan, the radiator being connected via a passage to said thermostat, and further incorporating a supplementary circuit with an electrically driven coolant pump and with at least one of said two means being connected to said electrically driven coolant pump, and with a temperature switch, which puts said electrically driven coolant pump into operation at an exit temperature of the liquid from at least one of said two means of over approximately 100° C., said supplementary circuit being connected mechanically in parallel to said passage, said passage being provided with a non-return valve for preventing backflow of liquid through said passage when said electrically driven coolant pump is activated, and said supplementary circuit being connected upstream to said thermostat and downstream to said radiator for allowing cooling liquid to cool at least one of said two means, depending on the operating situation.
Claim 5
Dependent Claim
45 words
A cooling system according to claim 1 or 2, wherein there is incorporated in said radiator a thermocontact which can activate said electric fan of said radiator when the temperature of the coolant from the supplementary circuit exceeds a certain value on entering the radiator.
Claim 6
Dependent Claim
29 words
A cooling system according to claim 2, wherein said temperature switch is arranged to switch off the electrically driven coolant pump at a coolant temperature below approximately 95° C.
References Cited (Backward Citations)
DE743329C
Cited
US2582916A
Cited
DE908930C
Cited
US3134371A
Cited
US3827236A
Cited
DE2631121A1
Cited
US4385594A
Cited
JPS6026193A
Cited
FR2519694A1
Cited
US4625682A
Cited
FR2559548A1
Cited
US4561387A
Cited
JPS60192828A
Cited
US4608827A
Cited
JPS60222526A
Cited
DE3424580C1
Cited
US4620509A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-05-15 | 1992-11-14 | 1993-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-15 | 1996-11-14 | 1997-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-15 | 2000-11-14 | 2001-05-16 | $7700.00 | Window Closed / Lapsed |