Caterpillar Inc.

Arvin Technologies, Inc.

Bryant Lee Richie

Henry L Neufeld

L Steven Cline

Michael Paul Withrow

Seth Evan Slaughter

Christopher Michael Dolan

An engine has a housing and a working member movable within an interior of the housing and separating a combustion chamber from a non-combustion chamber. Additionally, the engine may include a chamber-ventilation system that may include a passageway with a first end of the passageway connected to the non-combustion chamber and a second end of the passageway located downstream of the first end of the passageway. The chamber-ventilation system may further include a filter system disposed within the passageway. The filter system may include a filter housing and a filter disposed in the filter housing. Additionally, the chamber-ventilation system may be configured such that, during operation of the engine, gas travels from the non-combustion chamber, into the first end of the passageway, through the passageway, to the second end of the passageway. The engine may further include a first sensor configured to sense an operating condition of the chamber-ventilation system or another operating condition of the engine that relates to an operating condition of the chamber-ventilation system and to produce a signal relating to the operating condition sensed.

Engine and ventilation system

A filter apparatus comprises a filter element to be positioned in an interior region defined by a housing. The filter element comprises a quick-drain valve member to block a flow of fluid from the interior region through a quick-drain outlet defined by the housing when the filter element is positioned in the interior region and to allow a flow of fluid from the interior region through the quick-drain outlet when the filter element is removed from the interior region.

Quick-drain valve member for use with filter apparatus

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Chillicothe, IL, United States of America

Bryant Lee Richie