On Tue, 12 Apr 2011 09:44:17 -0400, "C. E. White"
> wrote:

>
>"Mr.E" > wrote in message
.. .
>>
>> http://www.egmcartech.com/2009/01/21...matic-gearbox/
>>
>>
>>
>> In Europe, Ford currently offers a PowerShift transmission in the Ford
>> Focus. This PowerShift uses a twin wet-clutch system to handle the
>> higher torque levels of the 2.0-liter TDCI engine available in the
>> Focus.
>>
>> In North America, a dry-clutch derivative of Ford's PowerShift
>> transmission will be used for added efficiency and durability. A dry
>> clutch transmits power and torque through manual transmission clutch
>> facings, while most automatic transmissions utilize wet clutch plates
>> submerged in oil. As a result, the dry-clutch PowerShift transmission
>> does not require an oil pump or torque converter, providing superior
>> mechanical efficiency.
>>
>> "A dry clutch is a real sweet spot for lighter vehicle applications,"
>> said Piero Aversa, manager, Ford Automatic Transmission Engineering.
>> "PowerShift is more efficient, it saves weight, is more durable, more
>> efficient and the unit is sealed for life, requiring no regular
>> maintenance."
>>
>> PowerShift, unlike conventional automatic transmissions, does not need
>> the heavier torque converter or planetary gears. In addition, the
>> dry-clutch derivative eliminates the need for the weighty pumps,
>> hydraulic fluids, cooling lines and external coolers that wet clutch
>> transmissions require. As a result, the dry-clutch PowerShift
>> transmission can weigh nearly 30 pounds less than, for example, the
>> four-speed automatic transmission featured on today's Ford Focus.
>
>Thanks very interesting...but what operates the dry clutches? The article
>says "electro-mechanical"...so does this mean a solenoid(s)?
>
No clue Ed- I ran across lots of info when researching 2011/2012 cars
to replace a 94 Corolla that a tree fell on. Still not totally
decided..
--
Mr.E