Patent US4364340A successfully refreshed from Google Patents.
US4364340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicular engine
Assignee: HATSUDOKI D/B/A YAMAHA MOTOR Co Ltd A CORP OF JAPAN KK
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Filing: 1981-01-23
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Granted: 1982-12-21
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Expires: 2001-01-23
Abstract
Abstract An induction system for a fuel injection V-type motorcycle engine has a pair of mixing bodies extending upwardly from the intake ports within the V formed by the cylinders. A surging tank is above the mixing bodies and below the fuel tank. An air intake passage is disposed alongside of the surging tank, and an air flow meter is disposed in the intake passage.
Inventors
- 👤 Hiroshi Kimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:51
CPC Classifications
F; F02; F02M; F02M35/00; F02M35/10; F02M35/10373; F02M35/10386; F02B; F02B61/00; F02B61/02; F02B75/00; F02B75/16; F02B75/18; F02B75/22; F02M35/02; F02M35/0201; F02M35/021; F02M35/04; F02M35/104; F02M35/116; F02M35/16; F02M35/162; F02B75/02; F02B2075/022; F02B2075/027; F02B2075/1804; F02B2075/1808; F02B61/06; F02F; F02F1/00; F02F1/24; F02F2001/244; F02F2001/245; F02M35/10209; F02M35/10216
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
113 words
In combination with a motorcycle having a frame, a fuel tank at an upper elevation on said frame, and a V-type fuel injection type engine mounted to said frame beneath said fuel tank, said engine having a pair of cylinders forming a V, with intake ports inside said V, an induction system comprising: a pair of mixing bodies, each rising from a respective one of said intake ports; a surging tank above and discharging into said mixing bodies, said surging tank being disposed beneath said fuel tank and above said engine; an air intake passage disposed at the side of said surging tank; and an air flow meter in said air intake passage.
Claim 2
Dependent Claim
113 words
In combination with a motorcycle having a frame, a fuel tank at an upper elevation on said frame, and a V-type fuel injection type engine mounted to said frame beneath said fuel tank, said engine having a pair of cylinders forming a V, with intake ports inside said V, an induction system comprising: a pair of mixing bodies, each rising from a respective one of said intake ports; a surging tank above and discharging into said mixing bodies, said surging tank being disposed beneath said fuel tank and above said engine; an air intake passage disposed at the side of said surging tank; and an air flow meter in said air intake passage.
Claim 3
Dependent Claim
37 words
A combination according to claim 1 in which said air intake passage extends downwardly to an air cleaner, and from said air cleaner to a region within said frame where it is protected from entry of water.
Claim 4
Dependent Claim
26 words
A combination according to claim 2 in which said air intake passage extends forwardly from said surging tank, then downwardly and then rearwardly, and opens rearwardly.
Claim 5
Dependent Claim
28 words
A combination according to claim 2 in which a portion of said air intake passage is disposed at an elevation higher than the top of said surging tank.
Claim 6
Dependent Claim
26 words
A combination according to claim 4 in which said air intake passage extends forwardly from said surging tank, then downwardly and then rearwardly, and opens rearwardly.
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-12-20 | 1986-06-21 | 1986-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-20 | 1990-06-21 | 1990-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-20 | 1994-06-21 | 1994-12-21 | $7700.00 | Window Closed / Lapsed |