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CENTRALIZED AIR-POLLUTION PREVENTIVE SYSTEM

  • US 3,680,318 A
  • Filed: 12/22/1970
  • Issued: 08/01/1972
  • Est. Priority Date: 12/29/1969
  • Status: Expired due to Term
First Claim
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1. A system for minimizing harmful components contained in exhaust gases emitted from an automotive internal combustion engine, comprising a plurality of vehicular air-pollution preventive devices adapted to be kept operative under individual predetermined conditions of engine operation, a plurality of sensors for sensing engine operating conditions to produce electric signals corresponding thereto, and a controller responsive to the electric signals for determining said individual predetermined conditions to activate said plurality of air-pollution preventive devices, said plurality of sensors including a vehicle speed sensor, an intake manifold vacuum sensor, a throttle opening sensor, an engine temperature sensor and an exhaust temperature sensor which sensors are electrically connected to said controller.

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