US5490560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger, particularly for motor vehicles
Assignee: Mahle Behr GmbH and Co KG
•
Filing: 1994-02-23
•
Granted: 1996-02-13
•
Expires: 2014-02-23
Abstract
Abstract A heat exchanger, particularly for motor vehicles, including a collecting tank and a metallic tube plate which has a primary side, a secondary side, and collars which are formed on it, and in which collars tubes are to be held and sealed. Neighboring collars (17, 19) are alternately directed towards the primary side (22) and towards the secondary side (23). In other words, collars disposed side by side are alternately formed in the direction of the air side and of the water side, whereby the distance between the collars can be reduced to a minimum.
Inventors
- 👤 Werner Helms
- 👤 Karl-Heinz Rothfuss
- 👤 Walter Wolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:36
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/02; F28F9/0219; F28F9/0224; F28F9/0226; F28F9/04; F28F9/06; F28F9/16; F28F9/165
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
79 words
A heat exchanger, particularly for motor vehicles, comprising: a collecting tank; and a single metallic tube plate which has a primary side, a secondary side, a wall thickness and collars having a wall thickness approximately equal the wall thickness of the metallic tube plate, the collars being formed continuously from the metallic tube plate, and in which tubes are to be held and sealed, wherein neighboring collars are alternately directed towards the primary side and towards the secondary side.
Claim 2
Dependent Claim
79 words
A heat exchanger, particularly for motor vehicles, comprising: a collecting tank; and a single metallic tube plate which has a primary side, a secondary side, a wall thickness and collars having a wall thickness approximately equal the wall thickness of the metallic tube plate, the collars being formed continuously from the metallic tube plate, and in which tubes are to be held and sealed, wherein neighboring collars are alternately directed towards the primary side and towards the secondary side.
Claim 3
Dependent Claim
46 words
Heat exchanger according to claim 1, wherein the collars are disposed directly side by side, and wherein radii, at a transition from the collar to a plane of the plate, of two collars directed oppositely to one another merge directly into one another in an S-shape.
Claim 4
Dependent Claim
40 words
Heat exchanger according to claim 2, wherein a minimum distance between outer walls of two neighboring, oppositely directed collars is in a range between zero and a wall thickness of the greater of the tube plate or of the collars.
Claim 5
Dependent Claim
14 words
Heat exchanger according to claim 2, wherein the collars have a round cross section.
Claim 6
Dependent Claim
14 words
Heat exchanger according to claim 2, wherein the collars have an elongated cross section.
Claim 7
Dependent Claim
16 words
Heat exchanger according to claim 2, wherein the tubes are mechanically expanded relative to the collars.
Claim 8
Dependent Claim
17 words
Heat exchanger according to claim 2, wherein rubber seals are arranged between the tubes and the collars.
Claim 9
Dependent Claim
40 words
Heat exchanger according to claim 1, wherein a minimum distance between outer walls of two neighboring, oppositely directed collars is in a range between zero and a wall thickness of the greater of the tube plate or of the collars.
Claim 10
Dependent Claim
14 words
Heat exchanger according to claim 8, wherein the collars have a round cross section.
Claim 11
Dependent Claim
14 words
Heat exchanger according to claim 8, wherein the collars have an elongated cross section.
Claim 12
Dependent Claim
14 words
Heat exchanger according to claim 1, wherein the collars have a round cross section.
Claim 13
Dependent Claim
14 words
Heat exchanger according to claim 1, wherein the collars have an elongated cross section.
Claim 14
Dependent Claim
16 words
Heat exchanger according to claim 1, wherein the tubes are mechanically expanded relative to the collars.
Claim 15
Dependent Claim
17 words
Heat exchanger according to claim 1, wherein rubber seals are arranged between the tubes and the collars.
Claim 16
Dependent Claim
23 words
Heat exchanger according to claim 14, wherein the rubber seals are in the form of sleeves and are inserted individually into respective collars.
Claim 17
Dependent Claim
38 words
Heat exchanger according to claim 14, wherein the rubber seals are in the form of continuous plates on which collars are formed and which are laid on the tube plate and inserted into the collars from both sides.
Claim 18
Dependent Claim
22 words
Heat exchanger according to claim 14, in which in a region of the collars the tube plate is covered with an elastomer.
Claim 19
Dependent Claim
22 words
Heat exchanger according to claim 14, wherein the rubber seals are in the form of a plate fitted from only one side.
Claim 20
Dependent Claim
96 words
A heat exchanger, particularly for motor vehicles, comprising: a collecting tank; and a metallic tube plate which has a primary side, a secondary side, and collars which are formed on it, and in which tubes are to be held and sealed, wherein neighboring collars are alternately directed towards the primary side and towards the secondary side; wherein the collars are disposed directly side by side, and wherein radii, at a transition from the collar to a plane of the plate, of two collars directed oppositely to one another merge directly into one another in an S-shape.
Claim 21
Dependent Claim
96 words
A heat exchanger, particularly for motor vehicles, comprising: a collecting tank; and a metallic tube plate which has a primary side, a secondary side, and collars which are formed on it, and in which tubes are to be held and sealed, wherein neighboring collars are alternately directed towards the primary side and towards the secondary side; wherein the collars are disposed directly side by side, and wherein radii, at a transition from the collar to a plane of the plate, of two collars directed oppositely to one another merge directly into one another in an S-shape.
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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) | 1999-02-12 | 1999-08-14 | 2000-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-02-12 | 2003-08-14 | 2004-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-02-12 | 2007-08-14 | 2008-02-13 | $7700.00 | Window Closed / Lapsed |