US4590915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-cylinder fuel atomizer for automobiles
Assignee: Hitachi Ltd
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Filing: 1984-11-13
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Granted: 1986-05-27
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Expires: 2004-11-13
Abstract
Abstract A multi-cylinder fuel atomizer for automobiles which includes an electromechanical transducer disposed between a concentrated cylinder arranged in a suction passage and respective suction pipes independently branched from the concentrated cylinder to corresponding cylinders. A horn ring vibrator is fixed to an end of the electromechanical transducer and is partly exposed to the suction pipes. The fuel injector is arranged upstream of the electrical mechanical transducer and is adapted to inject fuel to the horn ring vibrator, with the fuel being atomized by vibrations of the horn ring vibrator.
Inventors
- 👤 Teruo Yamauchi
- 👤 Yoshishige Oyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:36
CPC Classifications
F; F02; F02M; F02M27/00; F02M27/08; F02M69/00; F02M69/04; F02M69/041; Y; Y10; Y10S; Y10S261/00; Y10S261/48
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
96 words
In a fuel supply system of an automobile engine, a multi-cylinder fuel atomizer comprising an electromechanical transducer disposed between a concentrated cylinder arranged in a suction passage and respective suction pipes independently branched from said concentrated cylinder to corresponding cylinders, a pair of ring vibrators, a pair of horns having the ring vibrators at the distal ends thereof, the other ends of the horns tightly contacting said electromechanical transducer such that said vibrators are partly exposed to said suction pipes, and a fuel injector arranged upstream of said electromechanical transducer to inject fuel to said vibrators.
Claim 2
Dependent Claim
96 words
In a fuel supply system of an automobile engine, a multi-cylinder fuel atomizer comprising an electromechanical transducer disposed between a concentrated cylinder arranged in a suction passage and respective suction pipes independently branched from said concentrated cylinder to corresponding cylinders, a pair of ring vibrators, a pair of horns having the ring vibrators at the distal ends thereof, the other ends of the horns tightly contacting said electromechanical transducer such that said vibrators are partly exposed to said suction pipes, and a fuel injector arranged upstream of said electromechanical transducer to inject fuel to said vibrators.
Claim 3
Dependent Claim
26 words
A multi-cylinder fuel atomizer for automobiles as defined in claim 1, wherein the pair of ring vibrators are arranged symmetrically with respect to said electromechanical transducer.
Claim 4
Dependent Claim
41 words
A multi-cylinder fuel atomizer for automobiles as defined in claim 1, wherein said ring vibrators fixed to said electromechanical transducer are so arranged that theirs center agrees with a central position of a spacing between suction ports of said suction pipes.
Claim 5
Dependent Claim
37 words
A multi-cylinder fuel atomizer for automobiles as defined in claim 1, wherein said fuel injector includes a fuel distribution nozzle, a front end of which is arranged in proximity to a ring portion of said ring vibrators.
Claim 6
Dependent Claim
47 words
A multi-cylinder fuel atomizer for automobiles as defined in claim 1, wherein said fuel injector includes a fuel distribution nozzle, which is bifurcated over said ring vibrators, and bifurcate nozzle positions are so selected that the fuel is injected into respective suction ports of said suction pipes.
Claim 7
Dependent Claim
58 words
A multi-cylinder fuel atomizer for automobiles as defined in claim 1, wherein said fuel injector includes at least two fuel injection valves, which are arranged in a fuel passage, and front ends of the respective injection valves are so constructed that the fuel is injected to an inner wall of said ring vibrators so as to extend inwards.
Claim 8
Dependent Claim
19 words
A multi-cylinder fuel atomizer for automobiles as defined in claim 1, wherein said electromechanical transducer is an ultrasonic vibrator.
Claim 9
Dependent Claim
135 words
In a fuel supply system of an automobile engine, a multi-cylinder fuel atomizer comprising ultrasonic vibrator means disposed between a concentrated cylinder arranged in a suction passage and respective suction pipes independently branched from said concentrated cylinder to corresponding cylinders and common to said suction pipes, a plurality of ring vibrators corresponding to said suction pipes, a plurality of horns corresponding to the number of ring vibrators, each said vibrator being fixed to distal ends of said horns, and said horns tightly contacting said ultrasonic vibrator means, said vibrators being partly exposed to the corresponding suction pipes, and a nozzle which branches a fuel passage from a fuel injection valve and which injects fuel to inner walls of said plurality of ring vibrators so as to atomize the fuel by vibrations of said ring vibrators.
Claim 10
Dependent Claim
135 words
In a fuel supply system of an automobile engine, a multi-cylinder fuel atomizer comprising ultrasonic vibrator means disposed between a concentrated cylinder arranged in a suction passage and respective suction pipes independently branched from said concentrated cylinder to corresponding cylinders and common to said suction pipes, a plurality of ring vibrators corresponding to said suction pipes, a plurality of horns corresponding to the number of ring vibrators, each said vibrator being fixed to distal ends of said horns, and said horns tightly contacting said ultrasonic vibrator means, said vibrators being partly exposed to the corresponding suction pipes, and a nozzle which branches a fuel passage from a fuel injection valve and which injects fuel to inner walls of said plurality of ring vibrators so as to atomize the fuel by vibrations of said ring vibrators.
Claim 11
Dependent Claim
37 words
A multi-cylinder fuel atomizer for automobiles as defined in claim 2, wherein said fuel injector includes a fuel distribution nozzle, a front end of which is arranged in proximity to a ring portion of said ring vibrators.
Claim 12
Dependent Claim
47 words
A multi-cylinder fuel atomizer for automobiles as defined in claim 2, wherein said fuel injector includes a fuel distribution nozzle, which is bifurcated over said ring vibrators, and bifurcate nozzle positions are so selected that the fuel is injected into respective suction ports of said suction pipes.
Claim 13
Dependent Claim
19 words
A multi-cylinder fuel atomizer for automobiles as defined in claim 2, wherein said electromechanical transducer is an ultrasonic vibrator.
Claim 14
Dependent Claim
37 words
A multi-cylinder fuel atomizer for automobiles as defined in claim 3, wherein said fuel injector includes a fuel distribution nozzle, a front end of which is arranged in proximity to a ring portion of said ring vibrators.
Claim 15
Dependent Claim
47 words
A multi-cylinder fuel atomizer for automobiles as defined in claim 3, wherein said fuel injector includes a fuel distribution nozzle, which is bifurcated over said ring vibrators, and bifurcate nozzle positions are so selected that the fuel is injected into respective suction ports of said suction pipes.
Claim 16
Dependent Claim
19 words
A multi-cylinder fuel atomizer for automobiles as defined in claim 3, wherein said electromechanical transducer is an ultrasonic vibrator.
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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) | 1989-05-26 | 1989-11-25 | 1990-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-26 | 1993-11-25 | 1994-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-26 | 1997-11-25 | 1998-05-27 | $7700.00 | Window Closed / Lapsed |