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US4344898A Expired / Lapsed US ⏱️ 0.0 years remaining

Carburetor controlling system

Assignee: Aisan Industry Co Ltd
•
Filing: 1981-12-10
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Granted: 1982-08-17
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Expires: 2001-12-10
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Abstract

Abstract In a carburetor system having an electrically-heated choke system including a first heat generating member which is heated by the power supplied from a battery and a first thermo-sensitive member which is deformed by the heating operation of the first heat generating member and adapted for controlling an opening and closing operation of a choke valve by the deformation of the first thermo-sensitive member, and a fast idle system adapted for controlling an opening and closing operation of a throttle valve, the inventive carburetor controlling system comprises a second heat generating member which is heated by the power supplied from the battery, a second thermo-sensitive member which is deformed by the heating operation of the second heat generating member and controls an opening and closing operation of the throttle valve, a control circuit connected between the battery and the first and second heat generating members, a thermosensor for detecting an atmospheric temperature. The control circuit comprises a comparator circuit for comparing a compared input voltage corresponding to an output of the thermosensor with a predetermined reference voltage and a power circuit for controlling an amount of power supplied from the battery to the first and second heat generating members in accordance with the compared output of the comparator circuit.

Inventors

  • 👤 Shigetaka Takada
  • 👤 Yoji Satoh

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 05:13
CPC Classifications
F; F02; F02M; F02M1/00; F02M1/08; F02M1/10; F02M1/12; Y; Y10; Y10S; Y10S261/00; Y10S261/74

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 210 words
In combination with a carburetor system having an electrically-heated choke system including a first heat generating member which is heated by the power supplied from a battery and a first thermo-sensitive member which is deformed by the heating operation of said first heat generating member and adapted for controlling an opening and closing operation of a choke valve by the deformation of said first thermo-sensitive member, and a fast idle system adapted for controlling an opening and closing operation of a throttle valve, a carburetor controlling system comprising a second heat generating member which is heated by the power supplied from said battery, a second thermo-sensitive member which is deformed by the heating operation of said second heat generating member and controls an opening and closing operation of said throttle valve, a control circuit connected between said battery and said first and second heat generating members, a thermosensor for detecting an atmospheric temperature, said control circuit comprising a comparator circuit for comparing a compared input voltage corresponding to an output of said thermosensor with a predetermined reference voltage and a power circuit for controlling an amount of power supplied from said battery to said first and second heat generating members in accordance with the compared output of said comparator circuit.
Claim 2
Dependent Claim 210 words
In combination with a carburetor system having an electrically-heated choke system including a first heat generating member which is heated by the power supplied from a battery and a first thermo-sensitive member which is deformed by the heating operation of said first heat generating member and adapted for controlling an opening and closing operation of a choke valve by the deformation of said first thermo-sensitive member, and a fast idle system adapted for controlling an opening and closing operation of a throttle valve, a carburetor controlling system comprising a second heat generating member which is heated by the power supplied from said battery, a second thermo-sensitive member which is deformed by the heating operation of said second heat generating member and controls an opening and closing operation of said throttle valve, a control circuit connected between said battery and said first and second heat generating members, a thermosensor for detecting an atmospheric temperature, said control circuit comprising a comparator circuit for comparing a compared input voltage corresponding to an output of said thermosensor with a predetermined reference voltage and a power circuit for controlling an amount of power supplied from said battery to said first and second heat generating members in accordance with the compared output of said comparator circuit.
Claim 3
Dependent Claim 136 words
The carburetor controlling system as defined in claim 1 wherein said compared input voltage is divided into a first compared input voltage and a second compared input voltage by a voltage dividing circuit provided at the input of said comparator circuit; said comparator circuit comprising a first comparator circuit to which is inputted said first compared input voltage and a second comparator circuit to which is inputted said second compared input voltage; and said power circuit comprising a first power circuit for determining the level of power supplied to said first heat generating member in accordance with a first compared output from said first comparator circuit and a second power circuit for determining the level of power supplied to said second heat generating member in accordance with a second compared output from said second comparator circuit.

References Cited (Backward Citations)

US3818881A Cited
US4181107A Cited
US3948240A Cited
JPS5231232A Cited
JPS5276531A Cited
JPS54145820A Cited
US4321902A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1985-08-16 1986-02-15 1986-08-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1989-08-16 1990-02-15 1990-08-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1993-08-16 1994-02-15 1994-08-17 $7700.00 Window Closed / Lapsed

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