US4898141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel cooling device
Assignee: Aeroquip GmbH
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Filing: 1987-09-28
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Granted: 1990-02-06
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Expires: 2007-09-28
Abstract
Abstract A fuel cooling device has a cylindrical housing (1), in which a tube (8) for the refrigerant is mounted. This refrigerant tube 8 is surrounded by a spirally wound fuel tube. The tube (8) for the refrigerant has openings for penetration of the refrigerant into the inner part (2) of the housing (1). The spirally wound fuel tube assembly is constructed as a continuous tube assembly (14), which is also mainly located in the inner part (2) of the housing (1) and is led out of the housing (1) by its connecting ends.
Inventors
- 👤 Christian Fiedler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:28
CPC Classifications
F; F28; F28D; F28D7/00; F28D7/02; F28D7/024; F02; F02M; F02M31/00; F02M31/20; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
103 words
A fuel cooling device comprising: a cylindrical housing; a refrigerant tube for carrying a refrigerant mounted in said housing; a spirally wound fuel tube surrounding said refrigerant tube; said refrigerant tube having connecting ends for the refrigerant and for fuel; said refrigerant tube having openings for penetration of refrigerant into the interior of said housing; said spirally wound fuel tube comprising a continuous tube assembly located substantially in the interior of said housing; connecting ends on said tube assembly, said tube assembly exiting from said housing through said connecting ends; and adjustable throttle means located in an open end of said refrigerant tube.
Claim 2
Dependent Claim
103 words
A fuel cooling device comprising: a cylindrical housing; a refrigerant tube for carrying a refrigerant mounted in said housing; a spirally wound fuel tube surrounding said refrigerant tube; said refrigerant tube having connecting ends for the refrigerant and for fuel; said refrigerant tube having openings for penetration of refrigerant into the interior of said housing; said spirally wound fuel tube comprising a continuous tube assembly located substantially in the interior of said housing; connecting ends on said tube assembly, said tube assembly exiting from said housing through said connecting ends; and adjustable throttle means located in an open end of said refrigerant tube.
Claim 3
Dependent Claim
105 words
A fuel cooling device comprising: a cylindrical housing; a refrigerant tube for carrying a refrigerant mounted in said housing; a spirally wound fuel tube surrounding said refrigerant tube; said refrigerant tube having connecting ends for the refrigerant and for fuel; said refrigerant tube having openings for penetration of refrigerant into the interior of said housing; said spirally wound fuel tube comprising a continuous tube assembly located substantially in the interior of said housing; connecting ends on said tube assembly, said tube assembly exiting from said housing through said connecting ends; and profiled elements in said tube assembly which have a swirling effect on the fuel.
Claim 4
Dependent Claim
105 words
A fuel cooling device comprising: a cylindrical housing; a refrigerant tube for carrying a refrigerant mounted in said housing; a spirally wound fuel tube surrounding said refrigerant tube; said refrigerant tube having connecting ends for the refrigerant and for fuel; said refrigerant tube having openings for penetration of refrigerant into the interior of said housing; said spirally wound fuel tube comprising a continuous tube assembly located substantially in the interior of said housing; connecting ends on said tube assembly, said tube assembly exiting from said housing through said connecting ends; and profiled elements in said tube assembly which have a swirling effect on the fuel.
Claim 5
Dependent Claim
31 words
A fuel cooling device as defined in claim 1, including expansion means for controlling said throttle means; said expansion element being located in contact with said tube assembly for the fuel.
Claim 6
Dependent Claim
51 words
A fuel cooling device as defined in claim 1, wherein said housing has a front face and an inner part, said refrigerant tube having one end lying at said front face of said housing, and said refrigerant tube having the other end connected openly to said inner part of said housing.
Claim 7
Dependent Claim
38 words
A fuel cooling device as defined in claim 4, including an inlet port for the refrigerant on said front face of said housing; and an outlet port for said refrigerant located on another front face of said housing.
Claim 8
Dependent Claim
29 words
A fuel cooling device as defined in claim 1, wherein said tube assembly with said connecting ends on said tube assembly pass through a front face of said housing.
Claim 9
Dependent Claim
34 words
A fuel cooling device as defined in claim 1, wherein said openings for penetration of refrigerant into the interior of said housing are distributed over the axial length and surface of said refrigerant tube.
Claim 10
Dependent Claim
36 words
A fuel cooling device as defined in claim 1, wherein said housing is formed as a one piece member, said housing having front faces formed by a terminal part of a tube section by cold forming.
Claim 11
Dependent Claim
20 words
A fuel cooling device as defined in claim 1, wherein said housing comprises two extruded halves connected to each other.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-02-05 | 1993-08-07 | 1994-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-05 | 1997-08-07 | 1998-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-05 | 2001-08-07 | 2002-02-06 | $7700.00 | Window Closed / Lapsed |