Patent ID: 8991354
Filing Date: 2015-03-31
Classification: F02F

Abstract:
1. A method for determining the optimum orientation for a cylinder or cylinders of an angled cylinder, an offset crankshaft or an offset cylinder piston engine or motor comprising the steps of; a. determine a length of connecting rod measured from a piston axis of pivot to a crankpin axis of rotation; b. determine a length stroke by multiplying by 2 a length of throw measured from a crankshaft axis of rotation to said crankpin axis of rotation; c. determine a connecting rod to stroke ratio by dividing the said length of connecting rod by said length of stroke; d. evaluating the said connecting rod to stroke ratio to ascertain the selection of one of three classes; e. wherein said connecting rod to stroke ratio is in the range of 4 to 1 respectively to 1.9 to 1 respectively, and wherein said crankshaft is positioned at 90° of an operational rotation past a position of top dead center, an intersect of an imaginary centerline of said cylinder intersects with an imaginary centerline of said throw at 46% of said length of throw measured from said crankshaft axis of rotation to said crankpin axis of rotation, with a tolerance of +/−2.5% of said length of throw, a said optimum cylinder orientation is thereby determined; f. wherein said connecting rod to stroke ratio is in the amount less than 1.5 to 1 respectively, and wherein said crankshaft is positioned at 90° of said operational rotation past said position of top dead center, said intersect of said imaginary centerline of said cylinder intersects with said imaginary centerline of said throw at 33% of said length of throw measured from said crankshaft axis of rotation to said crankpin axis of rotation, with a tolerance of +/−2.5% of said length of throw, a said optimum cylinder orientation is thereby determined and g. wherein said connecting rod to stroke ratio is in the range of 1.5 to 1 respectively to 1.9 to 1 respectively, and wherein said crankshaft is positioned at 90° of said operational rotation past said position of top dead center, said intersect of said imaginary centerline of said cylinder intersects with said imaginary centerline of said throw is in the range of 33% to 46% of said length of throw respectively, measured from said crankshaft axis of rotation to said crankpin axis of rotation and thereby determined proportionally, with a tolerance of +/−2.5% of said length of throw, a said optimum cylinder orientation is thereby determined.