Fluid resistant solenoid actuated valve
First Claim
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1. A solenoid actuated valve assembly, comprising:
- a unitary valve housing having a longitudinal axis, an external surface and an internal surface defining an internal passageway extending along at least a portion of said longitudinal axis from a closed end to an opposite open end, said unitary valve housing defining a valve connection assembly adjacent said open end and said external surface defining a bobbin area coaxial with said longitudinal axis;
a core disposed within said internal passageway adjacent said closed end, said core having a roughened surface for engaging said internal passageway whereby said core is secured within said internal passageway;
a reciprocable plunger slidably disposed within said internal passage, said plunger having a distal end positioned adjacent said core and an opposite proximal end having a first valve member;
an energizing coil supported on said bobbin area in a coaxial relationship with at least a portion of said internal passageway; and
a second valve member interconnected with said valve connection assembly, whereby said first valve member selectively engages said second valve member to control fluid flow between said first valve member and second valve member.
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Abstract
A fluid resistant solenoid actuated valve having a unitary bobbin and valve housing. The unitary housing defining a valve seat connection assembly adjacent the fluid connection end. A portion of the bobbin housing being deformable upon application of a coil winding to secure a solenoid core placed in the housing. The coil having a pair of electrical leads extending over substantially the length of the coil. The coil and leads are encapsulated to provide fluid resistance.
50 Citations
21 Claims
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1. A solenoid actuated valve assembly, comprising:
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a unitary valve housing having a longitudinal axis, an external surface and an internal surface defining an internal passageway extending along at least a portion of said longitudinal axis from a closed end to an opposite open end, said unitary valve housing defining a valve connection assembly adjacent said open end and said external surface defining a bobbin area coaxial with said longitudinal axis; a core disposed within said internal passageway adjacent said closed end, said core having a roughened surface for engaging said internal passageway whereby said core is secured within said internal passageway; a reciprocable plunger slidably disposed within said internal passage, said plunger having a distal end positioned adjacent said core and an opposite proximal end having a first valve member; an energizing coil supported on said bobbin area in a coaxial relationship with at least a portion of said internal passageway; and a second valve member interconnected with said valve connection assembly, whereby said first valve member selectively engages said second valve member to control fluid flow between said first valve member and second valve member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. The solenoid actuated valve assembly 1, wherein said first valve member is a valve seal and said second valve member is a valve seat.
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10. A solenoid actuated valve assembly, comprising:
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a valve housing having a longitudinal axis, said housing defining an internal passageway extending along said longitudinal axis and an external surface defining a bobbin housing having a deformable portion; a core disposed within said internal passageway, at least a portion of said core disposed within said bobbin housing adjacent said deformable portion, said core including a roughened exterior surface; and a coil supported on said bobbing housing, said coil deforming said deformable portion into contact with said core, whereby said core is maintained in position within said internal passageway. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A method for assembling a fluid resistant solenoid actuated valve, comprising:
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providing a unitary bobbin and valve assembly, said assembly having a longitudinal axis and defining an interior passageway extending along the longitudinal axis and adapted to receive a magnetically responsive core and plunger, said interior passageway having an open end for a fluid connection and an opposite closed end; inserting a core in the interior passageway and positioning the core adjacent the closed end with a portion thereof extending within the bobbin, said core having a roughened exterior for engaging said interior passageway whereby said core can be secured within said interior passageway; winding an electrical conductor around the bobbin to form a coil; inserting a plunger and valve assembly into the interior passageway; inserting and securing a valve seat in the interior passageway; and electrically connecting leads to the coil. - View Dependent Claims (17, 18, 19, 20)
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21. A solenoid valve assembly, comprising:
a unitary valve housing defining; a bobbin housing for receiving a coil, said bobbin housing having a deformable portion; an internal passageway having a longitudinal axis, said passageway adapted to receive a core and a plunger, said internal passageway extending within at least a portion of said bobbin housing and having an open end and an opposite closed end; and a valve seat connection assembly disposed adjacent said open end; a core disposed within said internal passage adjacent said closed end, said core having a roughened surface for engaging said internal passageway whereby said core is secured within said internal passageway; a reciprocable plunger slidably disposed within said internal passage; a valve member mounted on said reciprocable plunger; an electric energizing coil supported on said bobbin housing in a coaxial relationship therewith, said coil having a first end and an opposite second end, said coil deforming said deformable portion of said bobbin to secure said core in position within said internal passage; a valve seat interconnected with said valve seat connection assembly, whereby said valve member selectively engages said valve seat to control fluid flow; and a pair of electrical leads electrically connected to said coil at said first end and extending parallel to said longitudinal axis beyond said second end.
Specification