US4712608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger for the independent heating of the driver and front-seat passenger side of a motor vehicle
Assignee: AN DIE DAIMLER BENZ AG
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Filing: 1986-02-07
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Granted: 1987-12-15
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Expires: 2006-02-07
Abstract
Abstract A heat exchanger for the independent heating of the driver and front-seat passenger side of a passenger space, having flow pipes located at the ends of the heat exchanger at the transition between the upper and lower water compartment. These flow pipes are connected to the central flow connection via a flow channel transverse to the central flow connection and corresponding juncture channel. The transverse channel is located above a collecting chamber which is located at the lower side of the upper water compartment. The flow pipes guide the flow from the upper water compartment to the lower water compartment. Return pipes are positioned to guide the flow from the lower water compartment into the collecting chamber in the upper water compartment. From the collecting chamber the flow travels out of the upper water compartment through return connections.
Inventors
- 👤 Klaus Arold
- 👤 Hermann Grimm, deceased
- 👤 Heinz Koukal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:55
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/02; F28F9/0202; F28F9/0204; F28F9/0214; F28F9/0217; F28D; F28D1/00; F28D1/02; F28D1/04; F28D1/0408; F28F9/0219; F28F9/0224; F28D21/00; F28D2021/0019; F28D2021/008; F28D2021/0091; F28D2021/0096; F28F21/00; F28F21/06; F28F21/067
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
216 words
An upper heat exchanger header for a heat exchanger for independent heating of the driver and front passenger side of a passenger space of a motor vehicle, said heat exchanger being of the type having a pair of ribbed block units, each including inlet flow pipes and return flow pipes extending therethrough between an upper heat exchanger header and a lower heat exchanger header, said upper heat exchanger header comprising: centrally disposed inlet flow connection means for accommodating inflow of heating medium means, transverse channel means extending across a substantial portion of the lateral width of the upper heat exchanger header and being configured to connect the inlet flow connection means with respective inlet flow pipe openings opening into the respective lateral outward portions of the upper heat exchanger header, and return flow collection chamber means extending substantially across the width of the upper heat exchanger header and between the respective inlet flow openings for accommodating return flow from return flow pipes of the respective ribbed block units communicating therewith, whereby the inlet flow of the heating medium is passed from the upper heat exchanger header downwardly through the ribbed block units at positions laterally outwardly of the location of return flow pipes in the ribbed block unit thereby optimizing heat stratification in the heat exchanger.
Claim 2
Dependent Claim
216 words
An upper heat exchanger header for a heat exchanger for independent heating of the driver and front passenger side of a passenger space of a motor vehicle, said heat exchanger being of the type having a pair of ribbed block units, each including inlet flow pipes and return flow pipes extending therethrough between an upper heat exchanger header and a lower heat exchanger header, said upper heat exchanger header comprising: centrally disposed inlet flow connection means for accommodating inflow of heating medium means, transverse channel means extending across a substantial portion of the lateral width of the upper heat exchanger header and being configured to connect the inlet flow connection means with respective inlet flow pipe openings opening into the respective lateral outward portions of the upper heat exchanger header, and return flow collection chamber means extending substantially across the width of the upper heat exchanger header and between the respective inlet flow openings for accommodating return flow from return flow pipes of the respective ribbed block units communicating therewith, whereby the inlet flow of the heating medium is passed from the upper heat exchanger header downwardly through the ribbed block units at positions laterally outwardly of the location of return flow pipes in the ribbed block unit thereby optimizing heat stratification in the heat exchanger.
Claim 3
Dependent Claim
53 words
An upper heat exchanger header according to claim 1, further comprising return flow connection means for communicating the return flow collection chamber means with a return flow circuit of a vehicle, said return flow connection means including respective return flow openings disposed at respective opposite lateral sides of the inlet flow connection means.
Claim 4
Dependent Claim
51 words
An upper heat exchanger header according to claim 2, wherein said return flow openings and said inlet flow connection means are disposed in a common first side wall of the upper heat exchanger header so as to accommodate respective in and out flow in directions transverse to said first side wall.
Claim 5
Dependent Claim
23 words
An upper heat exchanger header according to claim 1, wherein said transverse channel means is disposed above the return flow collection chamber means.
Claim 6
Dependent Claim
23 words
An upper heat exchanger header according to claim 3, wherein said transverse channel means is disposed above the return flow collection chamber means.
Claim 7
Dependent Claim
39 words
An upper heat exchanger header according to claim 5, wherein said transverse channel means extends along a second side wall of the upper heat exchanger header, which second side wall is parallel to and opposite said first side wall.
Claim 8
Dependent Claim
50 words
An upper heat exchanger header according to claim 1, wherein said header includes an opening to said transverse channel means through a lateral end wall of the header, and wherein plug means are provided to plug said opening, said opening and plug means serving to accommodate manufacture of the header.
Claim 9
Dependent Claim
50 words
An upper heat exchanger header according to claim 6, wherein said header includes an opening to said transverse channel means through a lateral end wall of the header, and wherein plug means are provided to plug said opening, said opening and plug means serving to accommodate manufacture of the header.
Claim 10
Dependent Claim
26 words
An upper heat exchanger header according to claim 1, wherein said header is formed by a plurality of shell means which are attached to one another.
Claim 11
Dependent Claim
32 words
An upper heat exchanger header according to claim 9, wherein said shell means includes an upper shell defining part of the transverse channel means and part of the inlet flow connection means.
Claim 12
Dependent Claim
80 words
An upper heat exchanger header according to claim 10, further comprising return flow connection means for communicating the return flow collection chamber means with a return flow circuit of a vehicle, said return flow connection means including respective return flow openings disposed at respective opposite lateral sides of the inlet flow connection means wherein said shell means includes a lower shell defining the return flow openings and part of both the transverse channel means and the inlet flow connection means.
Claim 13
Dependent Claim
28 words
An upper heat exchanger header according to claim 11, wherein said upper and lower shell abut one another at a center plane of the inlet flow connection means.
Claim 14
Dependent Claim
26 words
An upper heat exchanger header according to claim 12, wherein said return flow collection chamber means and return flow openings are formed in the lower shell.
Claim 15
Dependent Claim
209 words
A heat exchanger for independent heating of the driver and front passenger side of a passenger space of a motor vehicle, comprising: an upper heat exchanger header, a lower heat exchanger header, and a pair of ribbed block units which each include inlet flow pipes and return flow pipes extending between the upper and lower headers, wherein said upper heat exchanger header comprises: centrally disposed inlet flow connection means for accommodating inflow of heating medium means, transverse channel means extending across a substantial portion of the lateral width of the upper heat exchanger header and being configured to connect the inlet flow connection means with respective inlet flow pipe openings opening into the respective lateral outward portions of the upper heat exchanger header, and return flow collection chamber means extending substantially across the width of the upper heat exchanger header and between the respective inlet flow openings for accommodating return flow from return flow pipes of the respective ribbed block units communicating therewith, whereby the inlet flow of the heating medium is passed from the upper heat exchanger header downwardly through the ribbed block units at positions laterally outwardly of the location of return flow pipes in the ribbed block unit thereby optimizing heat stratification in the heat exchanger.
Claim 16
Dependent Claim
209 words
A heat exchanger for independent heating of the driver and front passenger side of a passenger space of a motor vehicle, comprising: an upper heat exchanger header, a lower heat exchanger header, and a pair of ribbed block units which each include inlet flow pipes and return flow pipes extending between the upper and lower headers, wherein said upper heat exchanger header comprises: centrally disposed inlet flow connection means for accommodating inflow of heating medium means, transverse channel means extending across a substantial portion of the lateral width of the upper heat exchanger header and being configured to connect the inlet flow connection means with respective inlet flow pipe openings opening into the respective lateral outward portions of the upper heat exchanger header, and return flow collection chamber means extending substantially across the width of the upper heat exchanger header and between the respective inlet flow openings for accommodating return flow from return flow pipes of the respective ribbed block units communicating therewith, whereby the inlet flow of the heating medium is passed from the upper heat exchanger header downwardly through the ribbed block units at positions laterally outwardly of the location of return flow pipes in the ribbed block unit thereby optimizing heat stratification in the heat exchanger.
Claim 17
Dependent Claim
50 words
A heat exchanger according to claim 14, comprising return flow connection means for communicating the return flow collection chamber means with a return flow circuit of a vehicle, said return flow connection means including respective return flow openings disposed at respective opposite lateral sides of the inlet flow connection means.
Claim 18
Dependent Claim
49 words
A heat exchanger according to claim 15, wherein said return flow openings and said inlet flow connection means are disposed in a common first side wall of the upper heat exchanger header so as to accommodate respective in and out flow in directions transverse to said first side wall.
Claim 19
Dependent Claim
21 words
A heat exchanger according to claim 14, wherein said transverse channel means is disposed above the return flow collection chamber means.
Claim 20
Dependent Claim
21 words
A heat exchanger according to claim 16, wherein said transverse channel means is disposed above the return flow collection chamber means.
Claim 21
Dependent Claim
37 words
A heat exchanger according to claim 18, wherein said transverse channel means extends along a second side wall of the upper heat exchanger header, which second side wall is parallel to and opposite said first side wall.
Claim 22
Dependent Claim
53 words
A heat exchanger according to claim 14, wherein said upper header includes an opening to said transverse channel means channel means through a lateral end wall of the upper header, and wherein plug means are provided to plug said opening, said opening and plug means serving to accommodate manufacture of the upper header.
Claim 23
Dependent Claim
51 words
A heat exchanger according to claim 19, wherein said upper header includes an opening to said transverse channel means through a lateral end wall of the upper header, and wherein plug means are provided to plug said opening, said opening and plug means serving to accommodate manufacture of the upper header.
Claim 24
Dependent Claim
25 words
A heat exchanger according to claim 14, wherein said upper header is formed by a plurality of shell means, which are attached to one another.
Claim 25
Dependent Claim
30 words
A heat exchanger according to claim 22, wherein said shell means includes an upper shell defining part of the transverse channel means and part of the inlet flow connection means.
Claim 26
Dependent Claim
77 words
A heat exchanger according to claim 23, comprising return flow connection means for communicating the return flow collection chamber means with a return flow circuit of a vehicle, said return flow connection means including respective return flow openings disposed at respective opposite lateral sides of the inlet flow connection means wherein said shell means includes a lower shell defining the return flow openings and part of both the transverse channel means and the inlet flow connection means.
Claim 27
Dependent Claim
26 words
A heat exchanger according to claim 24, wherein said upper and lower shell abut one another at a center plane of the inlet flow connection means.
Claim 28
Dependent Claim
24 words
A heat exchanger according to claim 25, wherein said return flow collection chamber means and return flow openings are formed in the lower shell.
References Cited (Backward Citations)
GB190220853A
Cited
US2044455A
Cited
GB844660A
Cited
US3067818A
Cited
US3173482A
Cited
US3478821A
Cited
US3516483A
Cited
DE2304832A1
Cited
JPS5528476A
Cited
FR2444580A1
Cited
US4485867A
Cited
US4559994A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-12-14 | 1991-06-15 | 1991-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-14 | 1995-06-15 | 1995-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-14 | 1999-06-15 | 1999-12-15 | $7700.00 | Window Closed / Lapsed |