Back to results
US 4,072,047 AGranted
Method and apparatus for monitoring intake manifold vacuum
AssigneeRemesta GmbH
InventorAnton Reismuller
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeRemesta GmbH
InventorAnton Reismuller
Estimating the term…
A method and apparatus for continuously monitoring and telemetering the condition of the vacuum pressure in the intake manifold of an automotive vehicle. The vacuum pressure is continuously sampled by a vacuum-pressure-sensitive device having one end that moves responsive to changes in the vacuum pressure. Mounted on the movable end of the device is a scanning arrangement that moves a pair of metal strips across the front of two light barrier devices as the pressure changes. In the preferred form, the two light barrier devices each consist of a photo-diode transmitter and a photo-transistor receiver. The output from the light barrier devices consists of an electrical signal having three stages as the pressure increases or decreases. The electrical signal passes through a switching arrangement which successively lights up three different-colored lights to inform the operator as to the condition of the vacuum in the intake manifold.
A method for continuously monitoring and telemetering the momentary operating condition of a motor vehicle engine with respect to the vacuum created in the intake manifold of the engine as output and reference quantity, comprising the steps of:
Apparatus for continuously monitoring and telemetering the momentary operating condition of a motor vehicle/engine with respect to the vacuum pressure created in the intake manifold of the engine, comprising:
Dependencies are inferred from the claim text.