US PATENT SUBCLASS 60 / 272
INTERNAL COMBUSTION ENGINE WITH TREATMENT OR HANDLING OF EXHAUST GAS

Current as of: June, 1999
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60 /   HD   POWER PLANTS

272INTERNAL COMBUSTION ENGINE WITH TREATMENT OR HANDLING OF EXHAUST GAS {18}
273  DF  .~> Methods {1}
275  DF  .~> By electrolysis, electrical discharge, electrical field, or vibration generator
276  DF  .~> Having means analyzing composition of exhaust gas
277  DF  .~> Having sensor or indicator of malfunction, unsafeness, or disarray of treater (e.g., fusible link, etc.)
278  DF  .~> Material from exhaust structure fed to engine intake {1}
280  DF  .~> Having auxiliary device mechanically driven by exhaust gas
281  DF  .~> Having exhaust gas collection and storage, or use as a pressure fluid source
282  DF  .~> By means producing a chemical reaction of a component of the exhaust gas {13}
309  DF  .~> Having retainer or flow director for exhaust gas condensate
310  DF  .~> Treated by washing, or having liquid contact structure
311  DF  .~> By sorber or mechanical separator
312  DF  .~> Pulsed, timed, tuned or resonating exhaust {2}
315  DF  .~> Pump draws exhaust gas from engine {1}
317  DF  .~> Exhaust and external fluid mingling structure {2}
320  DF  .~> Exhaust gas or exhaust system element heated, cooled, or used as a heat source {1}
322  DF  .~> Having vibration attenuating, or expansion and contraction relieving structure
323  DF  .~> Common receiver having inlets from plural cylinder (i.e., exhaust manifold)
324  DF  .~> Divider, collector, valve means, or boundary layer device controlling exhaust gas flow

DEFINITION

Classification: 60/272

(under the class definition) Subject matter having an engine in which fuel is burned in an expansible chamber to produce work and in which at least some of the combusted material going to discharge is handled or treated after it reaches a point where the handling or treatment is more than that necessary to remove the material from the chamber.

SEE OR SEARCH THIS CLASS, SUBCLASS:

39.5+, for the treatment of combustion products making up the exhaust of a gas turbine; subclasses 64+ for the treatment of the exhaust of an engine driven by a single fluid; and subclasses 200+ for a power plant comprising a combustion products generator and a combustion products directing reaction nozzle.

228+, for a reaction motor with thrust modifying means;

595, for a free piston type internal combustion engine, the exhaust of which drives a motor; and

597+, for a fluid motor driven by the exhaust or waste heat of an internal combustion engine. SEE OR SEARCH CLASS

123, Internal-Combustion Engines,

568.11+, for an internal combustion engine having a charge forming device that may be heated by exhaust gas; or in which exhaust gas is mixed with the engine fuel; subclass 142.5 for an internal combustion engine in which various parts of the engine exchange heat; and appropriate subclass for a residual internal combustion engine with the exhaust handled or treated as necessary to evacuate the combustion chamber or to modify operation of the engine.

180, Motor Vehicles,

296, for a motor vehicle having a specific motor-to-body-frame relationship and wherein the vehicle includes means on the motor or body frame for handling exhaust from the motor; subclass 309 for a motor vehicle which includes means for handling exhaust from its motor; and subclass 89.2 for a body for a motor vehicle, which body includes means for handling the exhaust of a motor.

181, Acoustics,

213+, for a muffler, per se.