JPS5477910A - Automotive air conditioning duct - Google Patents
Automotive air conditioning ductInfo
- Publication number
- JPS5477910A JPS5477910A JP14388877A JP14388877A JPS5477910A JP S5477910 A JPS5477910 A JP S5477910A JP 14388877 A JP14388877 A JP 14388877A JP 14388877 A JP14388877 A JP 14388877A JP S5477910 A JPS5477910 A JP S5477910A
- Authority
- JP
- Japan
- Prior art keywords
- vehicle
- cold air
- noise
- equalize
- air conditioner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
PURPOSE: To equalize the distribution of noise by lowering the noise level directly under an automotive air conditioner by constructing a two-stage cold air duct to substantially equalize the noise propagating distances from the air conditioner as a sound source to both the center in a vehicle and the end in the vehicle.
CONSTITUTION: A cold air duct 24 is divided into upper-stage and lower-stage cold air ducts 24a and 24b through a partition plate 25 provided over approx. half of the entire length of a vehicle 21 around the vicinity of and directly under an automotive air conditioner 22 as a center with sound absorbers 28, 29 bonded onto duct wall 33 and plate 25. The noise propagating distances from a cold air diffuser 23 to both a central air diffuser 27a and an end air diffuser 27b are substantially equal via the plate 25 to thereby lower and equalize the noise level at the respective positions in the vehicle.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14388877A JPS609944B2 (en) | 1977-12-02 | 1977-12-02 | Vehicle air conditioning duct |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14388877A JPS609944B2 (en) | 1977-12-02 | 1977-12-02 | Vehicle air conditioning duct |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5477910A true JPS5477910A (en) | 1979-06-21 |
JPS609944B2 JPS609944B2 (en) | 1985-03-14 |
Family
ID=15349355
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14388877A Expired JPS609944B2 (en) | 1977-12-02 | 1977-12-02 | Vehicle air conditioning duct |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS609944B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60113264U (en) * | 1984-01-06 | 1985-07-31 | 東急車輌製造株式会社 | Ropeway cabin ventilator |
JP2008302770A (en) * | 2007-06-06 | 2008-12-18 | Tokyu Car Corp | Ceiling structure for rolling stock |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0454193Y2 (en) * | 1988-08-03 | 1992-12-18 |
-
1977
- 1977-12-02 JP JP14388877A patent/JPS609944B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60113264U (en) * | 1984-01-06 | 1985-07-31 | 東急車輌製造株式会社 | Ropeway cabin ventilator |
JP2008302770A (en) * | 2007-06-06 | 2008-12-18 | Tokyu Car Corp | Ceiling structure for rolling stock |
Also Published As
Publication number | Publication date |
---|---|
JPS609944B2 (en) | 1985-03-14 |
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