Solenoid valve for aircraft galley brewing apparatus

Patent metadata

Field	Value
Publication number	US-10874247-B2
Application number	US-201816023404-A
Country	US
Kind code	B2
Filing date	Jun 29, 2018
Priority date	Jun 29, 2018
Publication date	Dec 29, 2020
Grant date	Dec 29, 2020

Abstract

The solenoid valve may include a coil, a stem core tube, and a core. The coil may include one or more electrical leads configured to provide the coil with an electric current. The coil may be configured to convert the electric current to a magnetic field. At least a portion of the stem core tube may be insertable within a coil channel. At least a portion of the core may be insertable within an end of the stem core tube and may be moveable within the stem core tube via the magnetic field. At least one of the stem core tube or the core may be fabricated from 434 stainless steel and treated with one or more corrosion prevention processes. The solenoid valve may be couplable to one or more components of the brewing apparatus. The brewing apparatus may be dimensioned to fit within a compartment of the aircraft galley.

First claim

What is claimed:

1. A solenoid valve for an aircraft galley brewing apparatus, comprising:
a coil including one or more electrical leads, the one or more electrical leads being configured to provide the coil with an electric current, the coil being configured to convert the electric current to a magnetic field;
a stem core tube, at least a portion of the stem core tube being insertable within a coil channel; and
a core, at least a portion of the core being insertable within an end of the stem core tube, the core being moveable within the stem core tube via the magnetic field,
at least one of the stem core tube or the core being fabricated from 434 stainless steel and treated with one or more corrosion prevention processes, the one or more corrosion prevention processes including a passivation process,
the solenoid valve being installable within the brewing apparatus and couplable to one or more components of the brewing apparatus, the brewing apparatus being dimensioned to fit within a compartment of the aircraft galley.

2. The solenoid valve in claim 1 , the one or more corrosion prevention processes including the passivation process and an electro-polishing process.

3. The solenoid valve in claim 1 , further comprising:
a spring insertable within a gap between an exterior surface of the core and an interior surface of the stem core tube,
the core being movable to an open position via the magnetic field when the coil is provided with the electric current by the one or more electrical leads,
the core being movable to a closed position via the spring when the coil is not provided with the electric current by the one or more electrical leads.

4. A solenoid valve for an aircraft galley brewing apparatus, comprising:
a coil including one or more electrical leads, the one or more electrical leads being configured to provide the coil with an electric current, the coil being configured to convert the electric current to a magnetic field;
a core tube, at least a portion of the core tube being insertable within a coil channel;
a stem, at least a portion of the stem being insertable within the coil channel, at least a portion of the stem being insertable within an end of the core tube; and
a core, at least a portion of the core being insertable within an additional end of the core tube, the core being moveable within the core tube via the magnetic field, at least one of the core tube or the core being fabricated from 434 stainless steel and treated with one or more corrosion prevention processes, the one or more corrosion prevention processes including a passivation process,
the solenoid valve being installable within the brewing apparatus and couplable to one or more components of the brewing apparatus, the brewing apparatus being dimensioned to fit within a compartment of the aircraft galley.

5. The solenoid valve in claim 4 , the one or more corrosion prevention processes including the passivation process and an electro-polishing process.

6. The solenoid valve in claim 4 , further comprising:
a spring insertable within a gap between an exterior surface of the core and an interior surface of the core tube,
the core being movable to an open position via the magnetic field when the coil is provided with the electric current by the one or more electrical leads,
the core being movable to a closed position via the spring when the coil is not provided with the electric current by the one or more electrical leads.

7. A solenoid valve, comprising:
a coil including one or more electrical leads, the one or more electrical leads being configured to provide the coil with an electric current, the coil being configured to convert the electric current to a magnetic field;
a stem core tube, at least a portion of the stem core tube being insertable within a coil channel; and
a core, at least a portion of the core being insertable within an end of the stem core tube, the core being moveable within the stem core tube via the magnetic field,
at least one of the stem core tube or the core being fabricated from 434 stainless steel and treated with one or more corrosion prevention processes, the one or more corrosion prevention processes including a passivation process.

8. The solenoid valve in claim 7 , the one or more corrosion prevention processes including the passivation process and an electro-polishing process.

9. The solenoid valve in claim 7 , further comprising:
a spring insertable within a gap between an exterior surface of the core and an interior surface of the stem core tube,
the core being movable to an open position via the magnetic field when the coil is provided with the electric current by the one or more electrical leads,
the core being movable to a closed position via the spring when the coil is not provided with the electric current by the one or more electrical leads.

10. A solenoid valve, comprising:
a coil including one or more electrical leads, the one or more electrical leads being configured to provide the coil with an electric current, the coil being configured to convert the electric current to a magnetic field;
a core tube, at least a portion of the core tube being insertable within a coil channel;
a stem, at least a portion of the stem being insertable within the coil channel, at least a portion of the stem being insertable within an end of the core tube; and
a core, at least a portion of the core being insertable within an additional end of the core tube, the core being moveable within the core tube via the magnetic field,
at least one of the core tube or the core being fabricated from 434 stainless steel and treated with one or more corrosion prevention processes, the one or more corrosion prevention processes including a passivation process.

11. The solenoid valve in claim 10 , the one or more corrosion prevention processes including the passivation process and an electro-polishing process.

12. The solenoid valve in claim 10 , further comprising:
a spring insertable within a gap between an exterior surface of the core and an interior surface of the core tube,
the core being movable to an open position via the magnetic field when the coil is provided with the electric current by the one or more electrical leads,
the core being movable to a closed position via the spring when the coil is not provided with the electric current by the one or more electrical leads.

Assignees

• Rockwell Collins Inc

Inventors

• Kelly Luke E
• Devlin Byron A

Classifications

• F16K31/0655 Primary

  Lift valves · CPC title

• B64D11/0007

  Devices specially adapted for food or beverage distribution services · CPC title

• C23F15/00

  Other methods of preventing corrosion or incrustation · CPC title

• B64D11/04

  Galleys · CPC title

• C25F3/24

  of iron or steel · CPC title