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AssigneeJohnson Controls Technology Company
InventorsPaul NEMIT, JR., Dennis Andrew HARRINGTON, Paul A. HUBER
Estimating the term…
A semi-hermetic compressor for ammonia service includes a compressor portion and a motor encased in an airtight housing portion. The compressor portion compresses ammonia. The motor includes a stator winding. Motor leads are connected to the field windings, and extend from the housing portion through a pass-through assembly. The pass-through assembly includes a base portion, a first isolation portion, a second isolation portion, a sealant and a cap portion. The base portion is inserted into the housing portion with an airtight seal. The first isolation portion is arranged to fit within an annular opening in the base portion. First and second isolation portions include apertures for a motor lead. Sealant is disposed between the isolation portions. A cap portion attaches to the base portion. An anti-rotation element prevents relative rotation there between.
A semi-hermetic compressor comprising a compressor portion and a motor encased in a housing portion;
The compressor of claim 11, further comprising an anti-rotation element adjacent to the cap portion, the anti-rotation element configured to prevent rotation of the cap portion relative to the base portion.
A pass-through assembly for passing electrical leads through a semi-hermetic compressor housing, comprising a base portion, a first isolation portion, a second isolation portion, and a cap portion;
The assembly of claim 18, wherein the pass-through assembly is configured to maintain electrical isolation of a plurality of copper field wires from an internal motor to an external terminal.
The assembly of claim 18, further comprising an anti-rotation element disposed between the cap portion and the base portion to prevent relative rotation between the cap portion and the base portion.
The compressor of claim 18, further comprising a sealant disposed in the space between the first isolation portion and the second isolation portion.
Dependencies are inferred from the claim text.