A method to balance mass moments of a drive unit and drive unit for performance of such a method

A transmission unit and moment of inertia technology, which is applied in the direction of inertial force compensation, machine/engine, crankshaft, etc., can solve the problem that the balance counterweight cannot be set on the same carrier, and achieve weight reduction, fuel consumption reduction, and space saving Effect

Inactive Publication Date: 2013-07-03
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0031] As a result, two balancing weights cannot be set on the same carrier, e.g. shaft

Method used

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  • A method to balance mass moments of a drive unit and drive unit for performance of such a method
  • A method to balance mass moments of a drive unit and drive unit for performance of such a method
  • A method to balance mass moments of a drive unit and drive unit for performance of such a method

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Embodiment Construction

[0045] In the prior art, the sum of force pairs comprising the inertial forces of two balance weights rotating in the same direction is added, and the resultant moment is the so-called free moment, which is and remains equally large with respect to any reference point , compared with the prior art, the method according to the invention is characterized in that, due to the counterweight rotation in the opposite direction, the free resultant force is maintained, and the magnitude of the combined moment is such that the first-order velocity caused by the rotation of the rigid body around the transmission unit The rotational motion caused by the first-order resultant moment of inertia of the polar center is balanced.

[0046] The present invention provides a system and method of at least partially balancing a crank drive that requires less space and is lighter than prior systems. This method utilizes two balance weights that may be placed on the crank drive member. The two balanc...

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PUM

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Abstract

A method to balance a crank drive of an internal combustion engine comprising: using a balancer unit comprising a first balance weight and a second balance weight serving as counterbalance; rotating the first and second balance weight at an engine rotation speed when a crankshaft rotates at the engine rotation speed; rotating the first balance weight in a same direction as the crankshaft; rotating the second balance weight in an opposite direction to the crankshaft; arranging the first balance weight and the second balance weight such that a resulting balancing moment about a velocity pole of a 1st order of a rigid body rotation of a drive unit at least partially balances a rotary movement about a velocity pole provoked by a resulting mass moment of the 1st order, an external effect of the resulting mass moment of the 1st order being at least partially balanced.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from German Patent Application No. 102012200028.3 filed on January 3, 2012, the entire content of which is hereby incorporated by reference. technical field [0003] The invention relates to a crank drive of an internal combustion engine and a method of balancing its moment of inertia. Background technique [0004] The invention relates to a method of balancing the moments of inertia caused by the first order inertial forces of the crank drive of an internal combustion engine. The crank drive belongs to a transmission unit having at least one cylinder, wherein the crank drive comprises a crankshaft and at least one piston pivoting on this crankshaft. The piston belongs to the at least one cylinder. The crank drive of the present invention utilizes a balancer unit comprising two balance weights that rotate at the engine speed when the crankshaft rotates at the engine speed. The action...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F15/26F02B61/06
CPCF16F15/26F16C3/06F02B75/065
Inventor M·罗里格
Owner FORD GLOBAL TECH LLC
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