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

Patent · 23 August 1994

OSTI ID:7242718

Wright, K E

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. 3 figs.

• DOE Contract Number: AC02-76CH03073
• Assignee: Dept. of Energy, Washington, DC (United States)
• Patent Number(s): A; US 5340081
• Application Number: PPN: US 8-072371
• OSTI ID: 7242718
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420200* -- Engineering-- Facilities
Equipment
& Techniques
CONTROL EQUIPMENT
DESIGN
ELECTRICITY
EQUIPMENT
FLOW REGULATORS
FLUIDS
GASES
OPERATION
PIEZOELECTRICITY
SEALS
TRANSPORT
VALVES