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Method and apparatus for aligning crankshaft sections

  • US 6,363,609 B1
  • Filed: 10/20/2000
  • Issued: 04/02/2002
  • Est. Priority Date: 10/20/2000
  • Status: Expired due to Term
First Claim
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1. An apparatus for aligning a crankshaft section with respect to the angular orientation of its peripheral pins, said apparatus comprising:

  • (a) a housing;

    (b) a phasing jig, supported by said housing, comprising an upper bearing portion and a lower bearing portion facing each other in virtual image formation and rotably adjustable with respect to each other, each such bearing portion having means for receiving the peripheral pins of said crankshaft section and aligning their angular positions with respect to each other, said means for receiving the peripheral pins of said crankshaft section comprising at least one block provided with an orifice along the length of its vertical axis, said orifice sized so as to provide a slip fit with said peripheral pins and positioned so that the linear distance between the center location of its longitudinal axis and the center location of said bearing portion is one-half of the stroke of the crankshaft of which said crankshaft section is a part;

    (c) means for centering the longitudinal axis of said crankshaft section with respect to the longitudinal axis of at least one of said bearing portions;

    (d) means for installing said means for receiving the peripheral pins of said crankshaft section and aligning their angular positions with respect to each other within said upper bearing portion and lower bearing portion; and

    (e) means for mounting said upper bearing portion and lower bearing portion on the housing.

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