US4484651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air intake system for motorized cycles
Assignee: Honda Motor Co Ltd
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Filing: 1982-11-22
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Granted: 1984-11-27
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Expires: 2002-11-22
Abstract
Abstract An air intake system in a motorized cycle of the type wherein a fuel tank is disposed behind a top bridge. Within the fuel tank is formed an outside air introducing path having an opening formed in the front portion of the tank, with an air cleaner being disposed downstream of the outside air introducing path. With such arrangement, a relatively large flow of air can be introduced with a relatively small load on the air cleaner.
Inventors
- 👤 Shigeru Hattori
- 👤 Tomoyuki Tagami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:30
CPC Classifications
F; F02; F02M; F02M35/00; F02M35/16; F02M35/162; B; B62; B62J; B62J35/00; F02B; F02B75/00; F02B75/02; F02B2075/022; F02B2075/027; F02B2275/00; F02B2275/18; F02B61/00; F02B61/02; F02M35/02; F02M35/10; F02M35/1015; F02M35/10196
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
75 words
In a motorized cycle having a top bridge and a fuel tank disposed substantially behind said top bridge, an air intake system comprising: an outside air introducing path formed in the interior of said fuel tank by means of a partition, so as to be separated from the fuel, and having an outside air intake opening formed in the front portion of said tank; and an air cleaner disposed downstream of said air introducing path.
Claim 2
Dependent Claim
75 words
In a motorized cycle having a top bridge and a fuel tank disposed substantially behind said top bridge, an air intake system comprising: an outside air introducing path formed in the interior of said fuel tank by means of a partition, so as to be separated from the fuel, and having an outside air intake opening formed in the front portion of said tank; and an air cleaner disposed downstream of said air introducing path.
Claim 3
Dependent Claim
64 words
An air intake system according to claim 1, wherein: said fuel tank comprises a tank casing having a substantially inverted U-shaped section and an external shape extending substantially symmetrically in the longitudinal direction; said casing having formed therein a storage chamber for storing fuel; and said introducing path is defined by said casing and isolated from said storage chamber by means of a partition.
Claim 4
Dependent Claim
55 words
An air intake system according to claim 2, wherein: said partition comprises a longitudinal partition wall; and said longitudinal partition wall extends substantially in the longitudinal direction from the front to an intermediate portion of said casing and is curved toward the storage chamber side of said casing at the rear portion of said casing.
Claim 5
Dependent Claim
23 words
An air intake system according to claim 3, wherein: said partition comprises a transverse partition wall extending flatwise substantially in the longitudinal direction.
Claim 6
Dependent Claim
17 words
An air intake system according to claim 4, wherein: a screen is fitted in said intake opening.
Claim 7
Dependent Claim
24 words
An air intake system according to claim 2, wherein: said tank is disposed at a front portion of a frame of said motorized cycle.
Claim 8
Dependent Claim
17 words
An air intake system according to claim 2, wherein: a screen is fitted in said intake opening.
Claim 9
Dependent Claim
17 words
An air intake system according to claim 3, wherein: a screen is fitted in said intake opening.
Claim 10
Dependent Claim
24 words
An air intake system according to claim 1, wherein: said tank is disposed at a front portion of a frame of said motorized cycle.
Claim 11
Dependent Claim
63 words
An air intake system according to claim 9, wherein said motorized cycle further comprises: a driver's seat disposed in a position behind said tank; said cleaner further comprising a duct having an upstream portion thereof in direct communication with said introducing path; and a cleaning element mounted downstream of said duct, said duct being partially defined by a bottom portion of said seat.
Claim 12
Dependent Claim
27 words
An air intake system according to claim 10, wherein: the remaining portion of said duct is defined by a substantially box-shaped member having a substantially monocoque structure.
Claim 13
Dependent Claim
53 words
An air intake system according to claim 11, wherein: said front portion of said frame includes a pair of right and left upper members extending substantially in the longitudinal direction; said seat is supported at said bottom portion thereof by said upper members; and said box-shaped member is suspended from said upper members.
Claim 14
Dependent Claim
25 words
An air intake system according to claim 9, wherein: the front portion of said seat extends substantially along the upper rear surface of said tank.
Claim 15
Dependent Claim
36 words
An air intake system according to claim 13 wherein: said front portion of said frame includes a main frame member extending substantially in the longitudinal direction; and said tank is mounted astride said main frame member.
Claim 16
Dependent Claim
17 words
An air intake system according to claim 9, wherein: a screen is fitted in said intake opening.
Claim 17
Dependent Claim
17 words
An air intake system according to claim 1, wherein: a screen is fitted in said intake opening.
Claim 18
Dependent Claim
13 words
An air intake system according to claim 16, wherein: said screen is detachable.
Claim 19
Dependent Claim
80 words
An air intake system according to claim 17, wherein: said tank is provided at the front portion thereof with a substantially flat front surface extending substantially in the vertical direction; said intake opening is provided in said front surface and has a substantially rectangular shape and a size which permits access to the interior of said introducing path; and said screen is arranged so as to cover said intake opening and is substantially similar in shape to said intake opening.
Claim 20
Dependent Claim
48 words
An air intake system according to claim 18, wherein: said screen is retained, at least at one point of the upper portion thereof in a downwardly removable manner and at one point of the lower portion thereof with a machine screw, at said front surface of said tank.
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) | 1987-11-27 | 1988-05-28 | 1988-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-27 | 1992-05-28 | 1992-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-27 | 1996-05-28 | 1996-11-27 | $7700.00 | Window Closed / Lapsed |