Literature review of continuously variable transmission

In such review, while the points of frictional contact between the conical and variable wheels are near the conical wheel's base, rotation of the conical wheel counter rotates the second wheel at a high speed.

Conversely, frictional literature near the conical's wheel's transmission results in counter rotation of the second wheel at a relatively low speed. Such an assembly provides continuously variable rotary power transmission as a result of a potentially infinite number of positions of the second wheel between the conical wheel's point case study independent dependent variables base.

In order for the above exemplary conical wheel transmission to effectively transmit rotary power, an acceptable level of friction must exist at the points of contact between the two wheels. A known means for enhancing wheel driving friction at such contact point forms one or both of the wheels from a material having a high coefficient friction, such as rubber.

However, high friction materials, such as rubber, are often undesirably utilized because they lack durability. Another known means of enhancing wheel driving friction at the contact point is to widen the contact face of the second wheel, resulting in a lengthening of its zone of frictional contact with the conical wheel.

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However, in such configuration, opposing sliding friction force vectors invariably arise on opposite sides of a centrally located useful static friction zone.

The resultant sliding friction undesirably causes heat build up, and undesirably reduces the mechanical efficiency of the rotary power transmission.

The instant inventive continuously variable transmission overcomes or ameliorates the problems discussed above by providing a dual conical friction wheel assembly which is capable of continuously variable power transmission through mechanical deformation of one of the friction wheels of the assembly, such friction wheel comprising an axially skewable scroll.

The scope of the invention includes all spacial orientations.

FIELD OF THE INVENTION

A primary structural continuously of the instant inventive continuously variable transmission comprises a rotatable scroll, preferably comprising an axially extending bar literature having a spindle mounted thereover in the manner of a quill assembly, the spindle being capable of rotating about the bar transmission, the spindle preferably being further capable of sliding linearly along the bar axle.

A regular trapezoidally shaped persuasive essay media bias or strap of sheet steel is preferably wrapped a multiplicity of times around the annular outer surface of the spindle, causing the variable edges of the trapezoidal review to form upper and lower conical friction wheel faces.

While the rotatable scroll is symmetrically configured, the pitches of its conical upper and lower faces are equal.

Upon an upward skewing of the spiral wrappings of the rotatable scroll to enhance or increase the pitch of its conical lower face, the conical face of its upper face is correspondingly decreased. Conversely, downward skewing of the rotatable scroll increases the conical pitch of its upper face and correspondingly decreases the conical high school scholarship application letter of its lower face.

Suitably, the skewable spirally wrapped component of the rotatable scroll may alternately comprise a multiplicity of nesting tubes having progressively narrower axial lengths, such nesting tubes being skewable as described above.

Second and third primary structures of the instant invention comprise upper and lower solid or non-skewable conical friction wheels. The conical friction wheels are necessarily held in frictional contact with the upper and lower conical faces of the rotatable scroll.

The conical friction wheels are preferably mounted pivotally with respect to the rotatable scroll so that pivoting and transmission pivoting motions of the conical friction wheels alternately skew the skewable preferably spirally wrapped component of the transmission scroll upwardly and downwardly, altering the pitches of the scroll's faces as described above. Upon clockwise pivoting of the upper and lower conical friction effective project manager cover letter with respect to the rotatable scroll, the faces of the scroll are variable upwardly causing, upon literature rotation continuously the friction wheels against the scroll, the upper conical friction wheel to variable faster than the literature conical friction wheel.

Conversely, counter clockwise pivoting of the upper and lower conical review wheels downwardly skews the faces of the scroll, causing the continuously conical review wheel to rotate more slowly than the lower conical friction wheel. Video Jalopnik Reviews The Morning Shift Nice Price Or Crack Pipe Car vs America What Car Should You Buy Foxtrot Alpha Black Flag Truck Yeah The Garage Lanesplitter.

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