Air valve carburetor

Claim 2

An air valve carburetor, comprising a carburetor body, a first induction passage formed through said body and including a first variably positionable throttle valve therein, a second induction passage formed through said body and including a second variably positionable throttle valve therein, a source of fuel, an air valve mounted within an inlet portion of said first and second induction passages so as to be responsive to the total volume of air flow through said induction passages, pivotal air valve shaft means fixedly secured to said air valve for enabling said air valve to pivotally deflect in relation to the volume rate of air flow through said induction passages, a first fuel discharge nozzle for discharging metered fuel into said first induction passage at a point generally downstream of said air valve but upstream of said first throttle valve, a second fuel discharge nozzle for discharging metered fuel into said second induction passage at a point generally downstream of said air valve but upstream of said second throttle valve, a first variably openable fuel metering valve assembly situated generally between said source of fuel and said first fuel discharge nozzle for providing a metered rate of fuel flow from said source of fuel to said first fuel discharge nozzle, a second variably openable fuel metering valve assembly situated generally between said source of fuel and said second fuel discharge nozzle for providing a metered rate of fuel flow from said source of fuel to said second fuel discharge nozzle, first adjustable cam means operatively connected to saId air valve and said first fuel metering valve assembly effective for adjusting the degree of opening of said first fuel metering valve assembly relative to the position of said air valve, second adjustable cam means operatively connected to said air valve and said second fuel metering valve assembly effective for adjusting the degree of opening of said second fuel metering valve assembly relative to the position of said air valve, at least said first adjustable cam means comprising a cam body freely mounted on said air valve shaft means for rotation thereabout and relative thereto, and an adjustment member fixedly secured to said air valve shaft means for rotation therewith, said adjustment member being operatively connected to said cam body and being effective to cause adjustable rotation of said cam body relative to said air valve shaft means.

Claim 3

An air valve carburetor, comprising a carburetor body, a first induction passage formed through said body and including a first variably positionable throttle valve therein, a second induction passage formed through said body and including a second variably positionable throttle valve therein, a source of fuel, an air valve mounted within an inlet portion of said first and second induction passages so as to be responsive to the total volume of air flow through said induction passages, pivotal air valve shaft means fixedly secured to said air valve for enabling said air valve to pivotally deflect in relation to the volume rate of air flow through said induction passages, a first fuel discharge nozzle for discharging metered fuel into said first induction passage at a point generally downstream of said air valve but upstream of said first throttle valve, a second fuel discharge nozzle for discharging metered fuel into said second induction passage at a point generally downstream of said air valve but upstream of said second throttle valve, a first variably openable fuel metering valve assembly situated generally between said source of fuel and said first fuel discharge nozzle for providing a metered rate of fuel flow from said source of fuel to said first fuel discharge nozzle, a second variably openable fuel metering valve assembly situated generally between said source of fuel and said second fuel discharge nozzle for providing a metered rate of fuel flow from said source of fuel to said second fuel discharge nozzle, first adjustable cam means operatively connected to said air valve and said first fuel metering valve assembly effective for adjusting the degree of opening of said first fuel metering valve assembly relative to the position of said air valve, second adjustable cam means operatively connected to said air valve and said second fuel metering valve assembly effective for adjusting the degree of opening of said second fuel metering valve assembly relative to the position of said air valve, each of said first and second adjustable cam means comprising a cam body freely mounted on said air valve shaft means for rotation thereabout and relative thereto, and an adjustment member fixedly secured to said air valve shaft means for rotation therewith, said adjustment member being operatively connected to said cam body and being effective to cause adjustable rotation of said cam body relative to said air valve shaft means and said air valve.

Claim 4

An air valve carburetor, comprising a carburetor body, a first induction passage formed through said body and including a first variably positionable throttle valve therein, a second induction passage formed through said body and including a second variably positionable throttle valve therein, a source of fuel, an air valve mounted within an inlet portion of said first and second induction passages so as to be responsive to the total volume of air flow through said induction passages, pivotal air valve shaft means fixedly secured to said air valve for enabling said air valve to pivotally deflect in relation to the volume rate of air flow through said induction passages, a first fuel discharge nozzle for discharging metered fuel into said first induction passage at a point generally downstream of said air valve but upstream of said first throttle valve, a second fuel discharge nozzle for discharging metered fuel into said second induction passage at a point generally downstream of said air valve but upstream of said second throttle valve, a first variably openable fuel metering valve assembly situated generally between said source of fuel and said first fuel discharge nozzle for providing a metered rate of fuel flow from said source of fuel to said first fuel discharge nozzle, a second variably openable fuel metering valve assembly situated generally between said source of fuel and said second fuel discharge nozzle for providing a metered rate of fuel flow from said source of fuel to said second fuel discharge nozzle, first adjustable cam means operatively connected to said air valve and said first fuel metering valve assembly effective for adjusting the degree of opening of said first fuel metering valve assembly relative to the position of said air valve, second adjustable cam means operatively connected to said air valve and said second fuel metering valve assembly effective for adjusting the degree of opening of said second fuel metering valve assembly relative to the position of said air valve, each of said first and second adjustable cam means comprising a cam body freely mounted on said air valve shaft means for rotation thereabout and relative thereto, and an adjustment member fixedly secured to said air valve shaft means for rotation therewith, said adjustment member being operatively connected to said cam body and being effective to cause adjustable rotation of said cam body relative to said air valve shaft means and said air valve.

Claim 5

An air valve carburetor, comprising a carburetor body, a first induction passage formed through said body and including a first variably positionable throttle valve therein, a second induction passage formed through said body and including a second variably positionable throttle valve therein, a source of fuel, an air valve mounted within an inlet portion of said first and second induction passages so as to be responsive to the total volume of air flow through said induction passages, pivotal air valve shaft means fixedly secured to said air valve for enabling said air valve to pivotally deflect in relation to the volume rate of air flow through said induction passages, a first fuel dischArge nozzle for discharging metered fuel into said first induction passage at a point generally downstream of said air valve but upstream of said first throttle valve, a second fuel discharge nozzle for discharging metered fuel into said second induction passage at a point generally downstream of said air valve but upstream of said second throttle valve, a first variably openable fuel metering valve assembly situated generally between said source of fuel and said first fuel discharge nozzle for providing a metered rate of fuel flow from said source of fuel to said first fuel discharge nozzle, a second variably openable fuel metering valve assembly situated generally between said source of fuel and said second fuel discharge nozzle for providing a metered rate of fuel flow from said source of fuel to said second fuel discharge nozzle, first adjustable cam means operatively connected to said air valve and said first fuel metering valve assembly effective for adjusting the degree of opening of said first fuel metering valve assembly relative to the position of said air valve, second adjustable cam means operatively connected to said air valve and said second fuel metering valve assembly effective for adjusting the degree of opening of said second fuel metering valve assembly relative to the position of said air valve, first and second lever members each including a cam follower portion respectively engaging said first and second adjustable cam means, each of said first and second lever members including valve engaging portions respectively engaging said first and second variably openable fuel metering valve assemblies, said first and second lever members being effective to respectively transmit motion developed by said first and second cam means upon rotation of said air valve in response to air flow through said induction passages to said first and second variably openable fuel metering valve assemblies.

Claim 6

An air valve carburetor, comprising a carburetor body, a first induction passage formed through said body and including a first variably positionable throttle valve therein, a second induction passage formed through said body and including a second variably positionable throttle valve therein, a source of fuel, an air valve mounted within an inlet portion of said first and second induction passages so as to be responsive to the total volume of air flow through said induction passages, pivotal air valve shaft means fixedly secured to said air valve for enabling said air valve to pivotally deflect in relation to the volume rate of air flow through said induction passages, a first fuel dischArge nozzle for discharging metered fuel into said first induction passage at a point generally downstream of said air valve but upstream of said first throttle valve, a second fuel discharge nozzle for discharging metered fuel into said second induction passage at a point generally downstream of said air valve but upstream of said second throttle valve, a first variably openable fuel metering valve assembly situated generally between said source of fuel and said first fuel discharge nozzle for providing a metered rate of fuel flow from said source of fuel to said first fuel discharge nozzle, a second variably openable fuel metering valve assembly situated generally between said source of fuel and said second fuel discharge nozzle for providing a metered rate of fuel flow from said source of fuel to said second fuel discharge nozzle, first adjustable cam means operatively connected to said air valve and said first fuel metering valve assembly effective for adjusting the degree of opening of said first fuel metering valve assembly relative to the position of said air valve, second adjustable cam means operatively connected to said air valve and said second fuel metering valve assembly effective for adjusting the degree of opening of said second fuel metering valve assembly relative to the position of said air valve, first and second lever members each including a cam follower portion respectively engaging said first and second adjustable cam means, each of said first and second lever members including valve engaging portions respectively engaging said first and second variably openable fuel metering valve assemblies, said first and second lever members being effective to respectively transmit motion developed by said first and second cam means upon rotation of said air valve in response to air flow through said induction passages to said first and second variably openable fuel metering valve assemblies.

Claim 7

An air valve carburetor, comprising a carburetor body, a first induction passage formed through said body and including a first variably positionable throttle valve therein, a second induction passage formed through said body and including a second variably positionable throttle valve therein, a source of fuel, an air valve mounted within an inlet portion of said first and second induction passages so as to be responsive to the total volume of air flow through said induction passages, pivotal air valve shaft means fixedly secured to said air valve for enabling said air valve to pivotally deflect in relation to the volume rate of air flow through said induction passages, a first fuel discharge nozzle for discharging metered fuel into said first induction passage at a point generally downstream of said air valve but upstream of said first throttle valve, a second fuel discharge nozzle for discharging metered fuel into said second induction passage at a point generally downstream of said air valve but upstream of said second throttle valve, a first variably openable fuel metering valve assembly situated generally between said source of fuel and said first fuel discharge nozzle for providing a metered rate of fuel flow from said source of fuel to said first fuel discharge nozzle, a second variably openable fuel metering valve assembly situated generally between said source of fuel and said second fuel discharge nozzle for providing a metered rate of fuel flow from said source of fuel to said second fuel discharge nozzle, first adjustable cam means operatively connected to said air valve and said first fuel metering valve assembly effective for adjusting the degree of opening of said first fuel metering valve assembly relative to the position of said air valve, second adjustable cam means operatively connected to said air valve and said second fuel metering valve assembly effective for adjusting the degree of opening of said second fuel metering valve assembly relative to the position of said air valve, each of said first and second adjustable cam means comprising a cam body Freely mounted on said air valve shaft means for rotation thereabout and relative thereto, and an adjustment member fixedly secured to said air valve shaft means for rotation therewith, said adjustment member comprising an adjustment body fixedly carried by said air valve shaft means, a threaded member threadably engaged with and carried by said adjustment body, said threaded member including a pivotal connecting portion operatively connected to said cam body at a point eccentrically disposed with respect to the axis of rotation of said cam body about said air valve shaft means, said pivotal connecting portion being effective to cause adjustable rotation of said cam body about said axis of rotation in response to adjustable threaded rotation of said threaded member in said adjustment body.

Claim 8

An air valve carburetor, comprising a carburetor body, a first induction passage formed through said body and including a first variably positionable throttle valve therein, a second induction passage formed through said body and including a second variably positionable throttle valve therein, a source of fuel, an air valve mounted within an inlet portion of said first and second induction passages so as to be responsive to the total volume of air flow through said induction passages, pivotal air valve shaft means fixedly secured to said air valve for enabling said air valve to pivotally deflect in relation to the volume rate of air flow through said induction passages, a first fuel discharge nozzle for discharging metered fuel into said first induction passage at a point generally downstream of said air valve but upstream of said first throttle valve, a second fuel discharge nozzle for discharging metered fuel into said second induction passage at a point generally downstream of said air valve but upstream of said second throttle valve, a first variably openable fuel metering valve assembly situated generally between said source of fuel and said first fuel discharge nozzle for providing a metered rate of fuel flow from said source of fuel to said first fuel discharge nozzle, a second variably openable fuel metering valve assembly situated generally between said source of fuel and said second fuel discharge nozzle for providing a metered rate of fuel flow from said source of fuel to said second fuel discharge nozzle, first adjustable cam means operatively connected to said air valve and said first fuel metering valve assembly effective for adjusting the degree of opening of said first fuel metering valve assembly relative to the position of said air valve, second adjustable cam means operatively connected to said air valve and said second fuel metering valve assembly effective for adjusting the degree of opening of said second fuel metering valve assembly relative to the position of said air valve, each of said first and second adjustable cam means comprising a cam body Freely mounted on said air valve shaft means for rotation thereabout and relative thereto, and an adjustment member fixedly secured to said air valve shaft means for rotation therewith, said adjustment member comprising an adjustment body fixedly carried by said air valve shaft means, a threaded member threadably engaged with and carried by said adjustment body, said threaded member including a pivotal connecting portion operatively connected to said cam body at a point eccentrically disposed with respect to the axis of rotation of said cam body about said air valve shaft means, said pivotal connecting portion being effective to cause adjustable rotation of said cam body about said axis of rotation in response to adjustable threaded rotation of said threaded member in said adjustment body.

Claim 9

An air valve carburetor, comprising a carburetor body, a first induction passage formed through said body and including a first variably positionable throttle valve therein, a second induction passage formed through said body and including a second variably positionable throttle valve therein, a source of fuel, an air valve mounted within an inlet portion of said first and second induction passages so as to be responsive to the total volume of air flow through said induction passages, pivotal air valve shaft means fixedly secured to said air valve for enabling said air valve to pivotally deflect in relation to the volume rate of air flow through said induction passages, a first fuel discharge nozzle for discharging metered fuel into said first induction passage at a point generally downstream of said air valve but upstream of said first throttle valve, a second fuel discharge nozzle for discharging metered fuel into said second induction passage at a point generally downstream of said air valve but upstream of said second throttle valve, a first variably openable fuel metering valve assembly situated generally between said source of fuel and said first fuel discharge nozzle for providing a metered rate of fuel flow from said source of fuel to said first fuel discharge nozzle, a second variably openable fuel metering valve assembly situated generally between said source of fuel and said second fuel discharge nozzle for providing a metered rate of fuel flow from said source of fuel to said second fuel discharge nozzle, first adjustable cam means operatively connected to said air valve and said first fuel metering valve assembly effective for adjusting the degree of opening of said first fuel metering valve assembly relative to the position of said air valve, second adjustable cam means operatively connected to said air valve and said second fuel metering valve assembly effective for adjusting the degree of opening of said second fuel metering valve assembly relative to the position of said air valve, each of said first and second adjustable cam means comprising a cam body freely mounted on said air valve shaft means for rotation thereabout and relative thereto, and an adjustment member fixedly secured to said air valve shaft means for rotation therewith, said adjustment member comprising an adjustment body fixedly carried by said air valve shaft means, a threaded member threadably engaged with and carried by said adjustment body, said threaded member including a ball-like connecting portion, and said cam body including a key-like opening formed therein for closely receiving said ball-like connecting portion being effective to cause adjustable rotation of said cam body about said air valve shaft means in response to adjustable threaded rotation of said threaded member in said adjustment body.

Claim 10

An air valve carburetor, comprising a carburetor body, a first induction passage formed through said body and including a first variably positionable throttle valve therein, a second induction passage formed through said body and including a second variably positionable throttle valve therein, a source of fuel, an air valve mounted within an inlet portion of said first and second induction passages so as to be responsive to the total volume of air flow through said induction passages, pivotal air valve shaft means fixedly secured to said air valve for enabling said air valve to pivotally deflect in relation to the volume rate of air flow through said induction passages, a first fuel discharge nozzle for discharging metered fuel into said first induction passage at a point generally downstream of said air valve but upstream of said first throttle valve, a second fuel discharge nozzle for discharging metered fuel into said second induction passage at a point generally downstream of said air valve but upstream of said second throttle valve, a first variably openable fuel metering valve assembly situated generally between said source of fuel and said first fuel discharge nozzle for providing a metered rate of fuel flow from said source of fuel to said first fuel discharge nozzle, a second variably openable fuel metering valve assembly situated generally between said source of fuel and said second fuel discharge nozzle for providing a metered rate of fuel flow from said source of fuel to said second fuel discharge nozzle, first adjustable cam means operatively connected to said air valve and said first fuel metering valve assembly effective for adjusting the degree of opening of said first fuel metering valve assembly relative to the position of said air valve, second adjustable cam means operatively connected to said air valve and said second fuel metering valve assembly effective for adjusting the degree of opening of said second fuel metering valve assembly relative to the position of said air valve, each of said first and second adjustable cam means comprising a cam body freely mounted on said air valve shaft means for rotation thereabout and relative thereto, and an adjustment member fixedly secured to said air valve shaft means for rotation therewith, said adjustment member comprising an adjustment body fixedly carried by said air valve shaft means, a threaded member threadably engaged with and carried by said adjustment body, said threaded member including a ball-like connecting portion, and said cam body including a key-like opening formed therein for closely receiving said ball-like connecting portion being effective to cause adjustable rotation of said cam body about said air valve shaft means in response to adjustable threaded rotation of said threaded member in said adjustment body.

Claim 11

An air valve carburetor according to claim 5, including first and second access openings formed in said carburetor body permitting the passage therethrough of suitable tool means for engaging and adjustably threadingly rotating each of said threaded members.

Claim 12

An air valve carburetor, comprising a carburetor body, a first induction passage formed through said body and including a first vAriably positionable throttle valve therein, a second induction passage formed through said body and including a second variably positionable throttle valve therein, a source of fuel, an air valve mounted within an inlet portion of said first and second induction passages so as to be responsive to the total volume of air flow through said induction passages, pivotal air valve shaft means fixedly secured to said air valve for enabling said air valve to pivotally deflect in relation to the volume rate of air flow through said induction passages, a first fuel discharge nozzle for discharging metered fuel into said first induction passage at a point generally downstream of said air valve but upstream of said first throttle valve, a second fuel discharge nozzle for discharging metered fuel into said second induction passage at a point generally downstream of said air valve but upstream of said second throttle valve, a first variably openable fuel metering valve assembly situated generally between said source of fuel and said first fuel discharge nozzle for providing a metered rate of fuel flow from said source of fuel to said first fuel discharge nozzle, a second variably openable fuel metering valve assembly situated generally between said source of fuel and said second fuel discharge nozzle for providing a metered rate of fuel flow from said source of fuel to said second fuel discharge nozzle, first adjustable cam means operatively connected to said air valve and said first fuel metering valve assembly effective for adjusting the degree of opening of said first fuel metering valve assembly relative to the position of said air valve, second adjustable cam means operatively connected to said air valve and said second fuel metering valve assembly effective for adjusting the degree of opening of said second fuel metering valve assembly relative to the position of said air valve, said source of fuel comprising fuel bowl means carried by said carburetor body, each of said first and second variably openable fuel metering valve assemblies being situated within said fuel bowl means, each of said first and second adjustable cam means being situated within said fuel bowl means, and first and second lever means situated within said fuel bowl means, each of said lever means being pivotally connected to a support portion within said fuel bowl means and including a follower portion for respectively engaging said first and second adjustable cam means and a valve actuating portion for operatively respectively engaging said first and second variably openable fuel metering valve assemblies, each of said lever means being respectively effective to transmit motion generated by said first and second cam assemblies as a result of rotation of said air valve to said first and second variably openable fuel metering valve assemblies.

Claim 13

An air valve carburetor, comprising a carburetor body, a first induction passage formed through said body and including a first vAriably positionable throttle valve therein, a second induction passage formed through said body and including a second variably positionable throttle valve therein, a source of fuel, an air valve mounted within an inlet portion of said first and second induction passages so as to be responsive to the total volume of air flow through said induction passages, pivotal air valve shaft means fixedly secured to said air valve for enabling said air valve to pivotally deflect in relation to the volume rate of air flow through said induction passages, a first fuel discharge nozzle for discharging metered fuel into said first induction passage at a point generally downstream of said air valve but upstream of said first throttle valve, a second fuel discharge nozzle for discharging metered fuel into said second induction passage at a point generally downstream of said air valve but upstream of said second throttle valve, a first variably openable fuel metering valve assembly situated generally between said source of fuel and said first fuel discharge nozzle for providing a metered rate of fuel flow from said source of fuel to said first fuel discharge nozzle, a second variably openable fuel metering valve assembly situated generally between said source of fuel and said second fuel discharge nozzle for providing a metered rate of fuel flow from said source of fuel to said second fuel discharge nozzle, first adjustable cam means operatively connected to said air valve and said first fuel metering valve assembly effective for adjusting the degree of opening of said first fuel metering valve assembly relative to the position of said air valve, second adjustable cam means operatively connected to said air valve and said second fuel metering valve assembly effective for adjusting the degree of opening of said second fuel metering valve assembly relative to the position of said air valve, said source of fuel comprising fuel bowl means carried by said carburetor body, each of said first and second variably openable fuel metering valve assemblies being situated within said fuel bowl means, each of said first and second adjustable cam means being situated within said fuel bowl means, and first and second lever means situated within said fuel bowl means, each of said lever means being pivotally connected to a support portion within said fuel bowl means and including a follower portion for respectively engaging said first and second adjustable cam means and a valve actuating portion for operatively respectively engaging said first and second variably openable fuel metering valve assemblies, each of said lever means being respectively effective to transmit motion generated by said first and second cam assemblies as a result of rotation of said air valve to said first and second variably openable fuel metering valve assemblies.