Means for positively seating a piezoceramic element in a piezoelectric valve during inlet gas injection

Patent · Sat Jan 01 00:00:00 EST 1994

OSTI ID:869458

Wright, Kenneth E ^[1]

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1. Yardley, PA

A piezoelectric valve in a gas delivery system includes a piezoceramic element bonded to a valve seal and disposed over a valve seat, and retained in position by an O-ring and a retainer; an insulating ball normally biased by a preload spring against the piezoceramic element; an inlet gas port positioned such that upon admission of inlet gas into the valve, the piezoceramic element is positively seated. The inlet gas port is located only on the side of the piezoceramic element opposite the seal.

• Research Organization: Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)
• DOE Contract Number: AC02-76CH03073
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5340081
• OSTI ID: 869458
• Country of Publication: United States
• Language: English

Related Subjects

means
positively
seating
piezoceramic
element
piezoelectric
valve
inlet
gas
injection
delivery
bonded
seal
disposed
seat
retained
position
o-ring
retainer
insulating
ball
normally
biased
preload
spring
positioned
admission
seated
located
opposite
piezoceramic element
valve seat
gas delivery
inlet gas
gas injection
normally bias
valve seal
piezoelectric valve
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