الموضوع: Double plate clutch

المشاركة الأصلية كتبت بواسطة gemino

لو ممكن حد من الناس الخبراء يوضح فكرة و مميزات و عيوب ال Double plate clutch او ال multi-plate clutch

شرح مبسط و وافى يا جماعة علشان انا قرات كتير فى الموضوع و لسه الفكرة مش كاملة عندى و حسيت ان انا

Double-clutching is a gear shifting procedure to save wear and tear on your gearbox, and on your clutch, at the expense of a little extra work for your left leg.

Let's say you're accelerating in second gear. When you're ready to shift into third, you decide not to use the standard approach, which is just to tromp on the clutch, take your foot off the gas, shove the shift lever into third, and let the clutch back out. Instead, you opt to double-clutch properly:

First, you take your foot off the gas and kick in the clutch. You shift into neutral, AND let the clutch out. You wait perhaps 0.3 to 1.0 seconds for the engine to slow down from its high revs, depending on how fast you were revving when you started to shift and how much inertia the engine has to slow down. THEN you kick in the clutch and shift into third, and let the clutch out quickly, feeding the gas appropriately. If you have judged it right, when you let the clutch out, there isn't any JERK. And when you shove the lever into third, the gears and engine are at a synchronized speed, so there's minimum wear on the synchronizers, which are the tiny clutches that bring the clutch plate and the gears into smooth synchrony. There's also usually less wear on the clutch plates.

Multi-plate clutch,
The present invention provides a multi-plate clutch comprising drive plates which are coaxially disposed within a clutch housing and to which friction materials are fixed, driven plates which are alternately arranged with the drive plates and a piston having an urging surface for providing an axial load to engage the drive plates and the driven plates with each other and wherein a plurality of urging portions protruding toward the driven plate are formed on the urging surface of the piston and the urging portions are provided in correspondence to an arrangement of spline projections provided on an outer periphery of the driven plate un-equidistantly along a circumferential direction. (end of abstract)
if u still need more informations let me know plz

Dear ramberandt
Thanks a lot for the information you provided but i still need more simple info about the advantages and the disadvantages of the system and which part is moveable and how it works and the role of the fly wheel in this system

ohhh u asking for too much lol

Am not asking for too much i swear i just want to understand the whole thing in a simple way

DOUBLE CLUTCHING ADVANTAGES ARE

as ramberandt explained the technique shifting to the next gear must stop at the neutral stage first but for a very short time allowing the engine to slow down to be nearly equal the speed of the shifting gear

1.The transition into the next gear is ALOT smoother. by allowing the engine speed and that of the shifting gear to be nearly equal
2.avoid clutch plates wearing due to thier slip(different speed of revolutions that the engine preform at the moment of shifting and the speed of the shifting gear


some cars have a device called a SYNCHRONIZER this device calculate the speed of the engine (flywheel rotations)
and match the speed of the shifting gear to this speed preforming the same action of the double clutching

the disadvantage of this device is during shifting from fifth gear to second for example i guess it takes a while



هو انا مجمع المعلومات من كذه موقع بس مش عارف اكتب منقول ولا لا بس على العموم

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