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Accumulator fuel injection system

  • US 5,241,935 A
  • Filed: 01/28/1992
  • Issued: 09/07/1993
  • Est. Priority Date: 02/03/1988
  • Status: Expired due to Term
First Claim
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1. In an internal combustion engine accumulator-type fuel injector, a method of reducing undesirable premixed burning in the engine which comprises:

  • raising injector needle means off its valve seat a small constant low-lift increment for a sufficient interval of time to inject a small pilot fuel charge into the engine; and

    then raising the needle means to a higher position to inject the main fuel charge into the engine.

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