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I would call it a fluid coupled clutch... Posted by MI-Roger [Email] (#882) [Profile/Gallery] (more from MI-Roger) on Thu, 13 Jun 2013 03:28:35 In Reply to: It's not a clutch..., Larry West [Profile/Gallery] , Wed, 12 Jun 2013 11:14:12 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Your fan analogy is very accurate.
In its simplest iteration a torque has three internal parts; the Pump which is a series of closely spaced vanes welded or crimped to inside of the outer housing; the Turbine which is a wheel of closely spaced vanes whose hub is connected to the input shaft,; and the Stator which is a third smaller wheel situated between the Pump and Turbine which face each other.
The pump spins with engine speed since it is bolted directly to the flex-plate (think fly wheel) and forcefully slings transmission oil at the Turbine. This causes the Turbine to rotate and provides the input rotation for the transmission. The oil leaving the Turbine is returned to the Pump but is spinning in the wrong direction. Now the Stator does its job of intercepting this flowing oil and changing its direction of rotation so the Pump can once again forcefully sling it at the Turbine.
I believe the Stator has a one way clutch within its hub so it won't be turned by the flowing oil. So there is one mechanical part, this one way clutch, which could fail and leave you with a transmission which operates like a 1960's era Dyna-flush.
Torque converters are welded shut around their entire periphery and precisely balanced. No way to open one just for giggles and grins.
_______________________________________ Saabs owned: 2008 9-5 Aero Sedan, sold at 227K miles 2006 9-3SC 2.0T - Wife's daily driver 2000 Viggen Convertible - Sold May, 2022 1964 Quantum IV Formula Car - Retirement project 2000 9-5lpt Sedan, sold at 318K miles
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