Controlled PCV valve

Patent · Tue Aug 18 00:00:00 EDT 1987

OSTI ID:6253956

Zeigler, Jr, T W; Romanczuk, C S; Betterton, J T; Glover, A H

A positive crankcase ventilation control device is described for use with an internal combustion engine and, specifically, for controlling the flow of emission laden vaporous fluids from the crankcase thereof, the control device including selective power means for substantially increasing the flow of emission laden air through the device, comprising: a generally hollow housing with an inlet forming portion adapted to be fluidly connected to the interior spaces of an internal combustion engine to receive emission laden air therefrom; the housing having an outlet forming device adapted to be fluidly connected to the air and fuel inletting portion of the internal combustion engine for disposing of the emission laden air from the engine, the inlet and outlet portions being connected within the interior of the housing by a flow control passage of specific flow area; an elongated valve plug member within the housing and having an end portion with a conically tapered configuration adapted to move progressively into the aforesaid flow control passage thereby decreasing the flow area thereof and, consequently, the total flow through the device; yieldable means urging the elongated valve member toward a position ensuring maximum flow through the flow control passage, but being yieldable to allow the valve member to move so that the conically tapered portion progressively extends further into the flow control passage to thereby decrease the flow area.

• Assignee: Chrysler Motors Corp., Highland Park, MI
• Patent Number(s): US 4686952
• OSTI ID: 6253956
• Resource Relation: Patent File Date: Filed date 22 Dec 1986
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
INTERNAL COMBUSTION ENGINES
PCV SYSTEMS
DESIGN
OPERATION
AIR FLOW
AIR POLLUTION CONTROL
EMISSION
EXHAUST GASES
EXHAUST SYSTEMS
FUEL-AIR RATIO
INTAKE STRUCTURES
PRESSURE EFFECTS
VALVES
VAPORS
CONTROL
CONTROL EQUIPMENT
ENGINES
EQUIPMENT
FLOW REGULATORS
FLUID FLOW
FLUIDS
GAS FLOW
GASEOUS WASTES
GASES
HEAT ENGINES
MECHANICAL STRUCTURES
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
WASTES
330700* - Advanced Propulsion Systems- Emission Control