US PATENT SUBCLASS 123 / 406.21
.~.~.~.~ Knock responsive

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


123 /   HD   INTERNAL-COMBUSTION ENGINES

406.11  DF  SPARK IGNITION TIMING CONTROL {5}
406.12  DF  .~ Electronic control {10}
406.19  DF  .~.~ Closed loop feedback control of spark timing {5}
406.2  DF  .~.~.~ Separate control for each cylinder {2}
406.21.~.~.~.~ Knock responsive

DEFINITION

Classification: 123/406.21

Knock responsive:

(under subclass 406.2) Subject matter wherein the regulating means is responsive to a signal indicative of an unusually high force (i.e., outside of normal operating parameters) of a shock wave produced when the mixture of combustible material and oxidant in the combustion chamber is detonated.

SEE OR SEARCH THIS CLASS, SUBCLASS:

406.16, for a spark ignition timing electronic control responsive to engine knock control malfunction.

406.29+, for an engine knock responsive spark ignition timing electronic control without separate timing control for each cylinder.

SEE OR SEARCH CLASS

73, Measuring and Testing,

35.01+, for explosive-detonation or knock measuring and testing. 701, Data Processing: Vehicles, Navigation, and Relative Location,

111, for a digital or programmed data processing system associated with an internal combustion engine, designed to control or sense vibration, roughness, or knocking condition of the engine, where significant details of the mechanical construction of the component or subsystem within a vehicle are not claimed.