Caterpillar Inc.

Seth Evan Slaughter

Jason Rex Dare

Kathleen Nackers

Terril James Johnson

James Richard Weber

Mark Taylor Allott

James C Durand

Ronald P Maloney

Michael Paul Withrow

Joseph John Stabnik

Mark Andrew McElroy

Seth Carl Studnicka

Andrew David Schick

Richard F Norton

Adrian Porojan

Pravin B Sondkar

Eric Nathan Lucas

Andreia Balan

Bryant Lee Richie

Christopher David Moore

Arthur S Lindell

Nilkanth Dinesh Desai

Shailendra Kardile

Christopher Michael Dolan

An engine crankcase breather includes a housing having a lower end including an inlet opening and an upper end including an outlet opening. The inlet opening lies in a horizontal plane and the outlet opening lies in a vertical plane. A mesh filter is positioned within the housing and includes opposing inlet and outlet faces defining a mesh filter thickness. The inlet and outlet faces are parallel to the inlet opening and are positioned below a central axis through the outlet opening. A bottom wall of the housing defines a portion of the lower end and includes a downward slope toward a lip defining the inlet opening. The mesh filter is spaced above the bottom wall. The engine crankcase breather also includes a plurality of oil return openings through the lip.

Engine crankcase breather with mesh filter

Valve cover with breather tube

An engine crankcase breather for oil segregation, from blow-by gases, in an engine. The engine crankcase breather includes a housing with an inlet located in a downstream direction of the blow-by gases and an outlet. The breather also includes a baffle within the housing which poses a tortuous path for the blow-by gases, in order to segregate oil particles from the blow-by gases. The baffle includes a hook-shaped portion, in which the oil segregation takes place. The engine crankcase breather further includes a trough extending within the housing. The trough is aligned with the hook-shaped portion of the baffle, to collect the segregated oil from the blow-by gases.

Breather for crankcase ventilation system

A ventilation system for use with an internal combustion engine having a crankcase is disclosed. The ventilation system may have a breather housing connected to ventilate gases from the crankcase, and a filtration canister fluidly connected downstream of the breather housing. The filtration canister may have a filter housing, a filtering medium located within the filter housing to collect oil from the gases, and an oil collection container disposed within the filter housing and being configured to receive at least a portion of the filtering medium. The oil collection container may have a drain port in fluid communication with the crankcase. The filtration canister may also have at least one port configured to discharge the gases from the housing after the gases have passed through the filtering medium.

Crankcase ventilation system

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

Growing community of inventors

Peoria, IL, United States of America

Seth Evan Slaughter