Variable intake manifold
OwnerWayne W. Overbeckinventor
Life of this patent
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Abstract
A variable intake manifold characterized by a variable cross-section bladder disposed within the engine's intake manifold. The degree of inflation of the bladder, and consequently the degree of occlusion of the cross-sectional flow path available for the fuel/air mixture within the manifold, is controlled by a pressure or vacuum device connected to a control unit. The control unit is adapted to receive status signals relating to the engine temperature, the throttle conditions, the engine speed in revolutions per minute (RPM) and manifold vacuum. These signals are processed by the control unit and result in various signals being delivered to the pressure-vacuum providing mechanisms which modify the degree of inflation of the bladder in accordance with the parameter status conditions.
Claims9
A variable intake manifold system for an internal combustion engine comprising:
- an inflatable bladder installed within the intake manifold so as to partially cross sectionally occlude a fuel/air mixture flow path;
- means for inflating and deflating the bladder so as to occlude a cross-section of said flow path;
- and
- means for controlling the inflating and deflating means in response to preselected engine parameter conditions.
Dependencies are inferred from the claim text.