US4914929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling unit including an evaporator and a vibration absorption mechanism therefor
Assignee: Sanden Corp
•
Filing: 1989-03-17
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Granted: 1990-04-10
•
Expires: 2009-03-17
Abstract
Abstract A cooling unit suitable for use in an automobile air conditioning system. The cooling unit includes an evaporator disposed in a casing having air inlet and air outlet openings to permit air passage through the evaporator. A vibration absorbing mechanism comprising an elastic material surrounds a peripheral surface of the evaporator and is disposed between the evaporator and the casing to prevent the transfer of vibration from the evaporator to the casing. Accordingly, the vibration absorption mechanism reduces or eliminates noise related to evaporator vibration from reaching the automotive passenger compartment.
Inventors
- 👤 Seiji Shimazaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:02
CPC Classifications
F; F25; F25B; F25B39/00; F25B39/02; B; B60; B60H; B60H1/00; B60H1/00507; B60H1/00514; B60H1/00521; B60H1/32; B60H1/3204; B60H1/3227; F16; F16F; F16F1/00; F16F1/36; F16F1/373; F16F1/377; Y; Y10; Y10S; Y10S181/00; Y10S181/403
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
69 words
A cooling unit suitable for use in an automotive air conditioning system, said cooling unit comprising a casing and an evaporator disposed within said casing, said casing including air inlet and air outlet opening to permit air flow through said evaporator, the improvement comprising: vibration absorbing means for absorbing vibration produced by said evaporator, said vibration absorbing means comprising an elastic member surrounding a peripheral surface of said evaporator.
Claim 2
Dependent Claim
69 words
A cooling unit suitable for use in an automotive air conditioning system, said cooling unit comprising a casing and an evaporator disposed within said casing, said casing including air inlet and air outlet opening to permit air flow through said evaporator, the improvement comprising: vibration absorbing means for absorbing vibration produced by said evaporator, said vibration absorbing means comprising an elastic member surrounding a peripheral surface of said evaporator.
Claim 3
Dependent Claim
26 words
The cooling unit of claim 1 wherein said vibration absorbing means forms an air-tight seal between the evaporator and the casing for preventing air passage therebetween.
Claim 4
Dependent Claim
28 words
The cooling unit of claim 1 wherein said vibration absorbing means is in the formm of an endless belt which forms a continuous elastic ring around the evaporator.
Claim 5
Dependent Claim
27 words
The cooling unit of claim 1 wherein the inner surface of the casing which is free from contact with said vibration absorbing means is lined with insulation.
Claim 6
Dependent Claim
20 words
The cooling unit of claim 1 wherein said evaporator includes side surfaces facing said casing air inlet and outlet openings.
Claim 7
Dependent Claim
20 words
The cooling unit of claim 1 wherein said vibration absorbing means forms vacant portions between the evaporator and the casing.
Claim 8
Dependent Claim
16 words
The cooling unit of claim 6 wherein said vacant portions are sealed from said air flow.
Claim 9
Dependent Claim
22 words
The cooling unit of claim 6 wherein said vibration absorbing means comprises a plurality of longitudinal passages which form said vacant portions.
Claim 10
Dependent Claim
21 words
The cooling unit of claim 8 wherein said vacant portions are sealed within the outer walls of the vibration absorbing means.
Claim 11
Dependent Claim
15 words
The cooling unit of claim 9 wherein said vacant portions have a rectangular transverse dimension.
Claim 12
Dependent Claim
22 words
The cooling unit of claim 8 wherein said passages are formed by grooves formed in one side of said vibration absorbing means.
Claim 13
Dependent Claim
14 words
The cooling unit of claim 11 wherein said grooves have a rectangular transverse configuration.
Claim 14
Dependent Claim
14 words
The cooling unit of claim 11 wherein said grooves have a V-shaped transverse configuration.
Claim 15
Dependent Claim
21 words
The cooling unit of claim 8 wherein said passages are formed by grooves on opposite sides of said vibration absorbing means.
Claim 16
Dependent Claim
15 words
The cooling unit of claim 14 wherein said vibration absorbing means has a corrugated configuration.
Claim 17
Dependent Claim
25 words
The cooling unit according to any one of claims 11, 12, 13, 14 or 15 wherein said vacant portions are sealed from said air flow.
Claim 18
Dependent Claim
14 words
The cooling unit according to claim 1 wherein said vibration absorbing means comprises rubber.
Claim 19
Dependent Claim
86 words
A cooling unit for an automotive air conditioning system, said cooling unit comprising a casing and an evaporator disposed within said casing, said casing including air inlet and air outlet openings to permit air flow through said evaporator, the improvement comprising: vibration absorbing means for absorbing vibration produced by said evaporator, said vibration absorbing means being in the form of an endless belt surrounding a peripheral surface of said evaporator, and said vibration absorbing means forming a plurality of vacant portions sealed from said air flow.
Claim 20
Dependent Claim
86 words
A cooling unit for an automotive air conditioning system, said cooling unit comprising a casing and an evaporator disposed within said casing, said casing including air inlet and air outlet openings to permit air flow through said evaporator, the improvement comprising: vibration absorbing means for absorbing vibration produced by said evaporator, said vibration absorbing means being in the form of an endless belt surrounding a peripheral surface of said evaporator, and said vibration absorbing means forming a plurality of vacant portions sealed from said air flow.
Claim 21
Dependent Claim
21 words
The cooling unit of claim 18 wherein said vibration absorbing means forms an air-tight seal between the evaporator and the casing.
Claim 22
Dependent Claim
12 words
The cooling unit of claim 19 wherein said elastic member is rubber.
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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) | 1993-04-09 | 1993-10-09 | 1994-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-09 | 1997-10-09 | 1998-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-09 | 2001-10-09 | 2002-04-10 | $7700.00 | Window Closed / Lapsed |