US4191148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aftercooler assembly for internal combustion engine
Assignee: Cummins Inc
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Filing: 1977-06-30
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Granted: 1980-03-04
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Expires: 1997-06-30
Abstract
Abstract The disclosure illustrates a water to air aftercooler assembly in which an elongated coolant tube bundle is supported by plates spaced between heat exchange fins to form an aftercooler core. The support plates are secured to opposed walls forming a part of the aftercooler housing. This arrangement permits a simplified and economical aftercooler core. In addition it provides an improved support for the aftercooler core and structurally reinforces the aftercooler housing.
Inventors
- 👤 Harshad H. Patel
- 👤 Tejandra N. Bose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:08
CPC Classifications
F; F01; F01P; F01P3/00; F01P3/18; F28; F28D; F28D7/00; F28D7/16; F28F; F28F9/00; F28F9/007; F28F9/013; F01P2070/00; F01P2070/52
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
167 words
An aftercooler assembly for an internal combustion engine, said assembly comprising, housing means defining an elongated chamber having at least one inlet and outlet for air, said housing means having a pair of elongated opposed interconnected side and end walls forming an elongated trough having a substantially continuous planar surface; defined by the extremities of said side and end walls; an elongated aftercooler core positioned in said chamber, said core comprising a plurality of coolant conduits extending generally parallel to the longitudinal axis of said housing means and having a pair of core support plates at opposite ends of said aftercooler core and at least one core support plate intermediate said end core support plates, all of said support plates extending generally transverse to and structurally connected to said coolant conduits; and means for securing said intermediate core support plate to both of said side walls adjacent said planar surface, thereby forming a structural support for said aftercooler core and reinforcing the side walls of said housing.
Claim 2
Dependent Claim
167 words
An aftercooler assembly for an internal combustion engine, said assembly comprising, housing means defining an elongated chamber having at least one inlet and outlet for air, said housing means having a pair of elongated opposed interconnected side and end walls forming an elongated trough having a substantially continuous planar surface; defined by the extremities of said side and end walls; an elongated aftercooler core positioned in said chamber, said core comprising a plurality of coolant conduits extending generally parallel to the longitudinal axis of said housing means and having a pair of core support plates at opposite ends of said aftercooler core and at least one core support plate intermediate said end core support plates, all of said support plates extending generally transverse to and structurally connected to said coolant conduits; and means for securing said intermediate core support plate to both of said side walls adjacent said planar surface, thereby forming a structural support for said aftercooler core and reinforcing the side walls of said housing.
Claim 3
Dependent Claim
59 words
Apparatus as in claim 1 wherein: said intermediate support plate is of sufficient width so that at least a portion of it extends between and abuts said opposed walls, said intermediate securing means comprises means extending through the side walls and securing said intermediate plate to said side walls at the portion where said plate abuts said side walls.
Claim 4
Dependent Claim
46 words
Apparatus as in claim 1 wherein: said intermediate support plate is secured to said side walls adjacent said planar surface so that the aftercooler core extends above and below said planar surface; said housing includes an elongated cover secured to said trough around said planar surface.
Claim 5
Dependent Claim
28 words
Apparatus as in claim 3 wherein said aftercooler core further comprises a plurality of relatively thin fins extending generally transverse to the longitudinal axis of said coolant conduits.
Claim 6
Dependent Claim
63 words
Apparatus as in claim 4 wherein said aftercooler core includes headers secured to said end support plates and being open to said elongated coolant conduits, one of said headers having a coolant connector extending in a direction parallel to the longitudinal axis of said aftercooler and the other header having a coolant connector extending at right angles to the first named coolant connector.
Claim 7
Dependent Claim
55 words
Apparatus as in claim 5 wherein: all of said support plates are of sufficient width to extend between and abut said opposed side walls, said securing means comprises means extending through the side walls and securing all of said support plates to said side walls at the portion where said plates abut said side walls.
Claim 8
Dependent Claim
57 words
Apparatus as in claim 3 wherein: said trough has a plurality of spaced openings in one of said side walls forming outlets for said housing means; said openings being positioned so that air must pass across said aftercooler core before exiting through said openings, said cover has an opening forming an air inlet for said housing means.
Claim 9
Dependent Claim
15 words
Apparatus as in claim 7 wherein said trough is cast and said cover is stamped.
Claim 10
Dependent Claim
35 words
Apparatus as in claim 6 wherein said support plates have threaded sockets in the portions abutting said side walls and said securing means comprises screws extending through said side walls and threaded into said sockets.
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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) | 1983-03-04 | 1983-09-03 | 1984-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-04 | 1987-09-03 | 1988-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-04 | 1991-09-03 | 1992-03-04 | $7700.00 | Window Closed / Lapsed |