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EP1336735B1
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Cooling system for an internal combustion engine
Assignee: AVL List GmbH
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Filing: 2002-11-14
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Granted: 2005-10-19
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Expires: 2022-11-14
Abstract
No abstract record available.
Inventors
- 👤 Robert Ing. Roithinger
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 19:46
CPC Classifications
F; F02; F02B; F02B29/00; F02B29/04; F02B29/045; F02B29/0475; F01; F01P; F01P3/00; F01P3/18; F02B29/0406; F02B29/0412; F02B29/0425; F02B29/0431; B; B60; B60K; B60K11/00; B60K11/02; F01P2003/182; F01P2003/185; F01P2003/187; F01P2060/00; F01P2060/02; F02B37/00; F02B37/013; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
110 words
Cooling system for an internal combustion engine (1) with two-stage
supercharging, including a charge-air line (4) in which are provided a first
compressor (5) of a first turbocharger (2) and a second compressor (6) of
a second turbocharger (3) downstream of the former, a first charge-air
cooler (10) being provided between first and second compressor (5,6), and
a second charge-air cooler (11) downstream of the second compressor (6), wherein at least one of the two charge-air coolers (10,11) is disposed
upstream of the coolant cooler (13) in flow direction of the cooling air (L),
and the second charge-air cooler (11) is disposed above or beside the first
charge-air cooler (10).
Claim 2
Dependent Claim
62 words
Cooling system according to claim 1, wherein the inlet (15) and outlet
(16) of at least one charge-air cooler (10,11), and preferably the first
charge-air cooler (10), are provided on one and the same side relative to a
vertical plane (22) extending through the center of gravity (S) of the
charge-air cooler (10) in the flow direction of the cooling air (L).
Claim 3
Dependent Claim
72 words
Cooling system according to claim 1 or 2, wherein at least one charge-air
cooler (10,11), and preferably the first charge-air cooler (10), is provided
with a separating wall (23) through the center of gravity (S), which acts as
a partition between incoming and outgoing charge-air stream (P 2 ,P 4 ), so
that an essentially U-shaped flow path (P 3 ) is obtained for the charge air
flowing through the charge-air cooler.
Claim 4
Dependent Claim
33 words
Cooling system according to any of claims 1 to 3, wherein the cooling
assembly (12) comprising first and second charge-air coolers (10,11) and
the coolant cooler (13) is rigidly attached to the engine.
Claim 5
Dependent Claim
22 words
Cooling system according to any of claims 1 to 3, wherein the cooling
assembly (12) is rigidly attached to the vehicle frame.
Claim 6
Dependent Claim
40 words
Cooling system according to claim 1 to 5, wherein flexible hose elements
(14) are provided in the charge-air line (4) between first compressor (5),
first charge-air cooler (10), second compressor (6), second charge-air
cooler (11), and an intake manifold (20).
Claim 7
Dependent Claim
26 words
Cooling system according to any of claims 1 to 6, wherein the second
turbocharger (3) is bypassed in a controlled manner, preferably at the
exhaust end.
Claim 8
Dependent Claim
37 words
Cooling system according to any of claims 1 to 7, including a fan (17) for
generation of a cooling air stream (L), wherein the a preferably axial-flow
type fan (17) is driven by a switchable coupling (17a).
Claim 9
Dependent Claim
16 words
Cooling system according to claim 8, wherein the switchable coupling
(17a) is provided with a visco-thermoelement.
Claim 10
Dependent Claim
28 words
Cooling system according to claim 8, wherein the coupling (17a) is
controlled externally via at least one cooling- air temperature sensor (17b)
and an electronic control unit (ECU).
References Cited (Backward Citations)
No citation records indexed.
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