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Title: Fluid pump having magnetic drive

A pump includes a housing defining a cavity, an axial bore coaxially communicating with the cavity, at least one radial bore radially extending between the cavity and an outlet, and an inlet communicating with the radial bore intermediate to the cavity and the outlet. A crankshaft having a longitudinal axis is disposed in the axial bore for rotation about the axis and includes an eccentric portion disposed in the cavity. A piston having a base is disposed in the cavity, and has a head disposed in the radial bore for slidable reciprocation between a discharge position proximate the outlet and an intake position at the inlet between the cavity and the outlet. A cage structure including a cage and a slider block connects the piston base to the eccentric portion of the crankshaft for transforming rotation of the eccentric portion in the cavity to reciprocation of the piston in the radial bore. A valve structure opens and closes the outlet in response to movement of the piston head between the discharge position to the intake position.
Inventors:
 [1];  [2];  [3]
  1. (Benton Harbor, MI)
  2. (Stevensville, MI)
  3. (DeSoto, TX)
Issue Date:
OSTI Identifier:
870639
Assignee:
Phillips Engineering Company (St. Joseph, MI) ORNL
Patent Number(s):
US 5564908
Application Number:
08/195,193
Contract Number:
86X-17497C
Research Org:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
Country of Publication:
United States
Language:
English
Subject:
fluid; pump; magnetic; drive; housing; defining; cavity; axial; bore; coaxially; communicating; radial; radially; extending; outlet; inlet; intermediate; crankshaft; longitudinal; axis; disposed; rotation; eccentric; portion; piston; base; head; slidable; reciprocation; discharge; position; proximate; intake; cage; structure; including; slider; block; connects; transforming; valve; closes; response; movement; eccentric portion; housing defining; portion disposed; radial bore; structure including; longitudinal axis; radially extending; axial bore; valve structure; discharge position; intake position; fluid pump; head disposed; inlet communicating; /417/

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