Drive unit with engine and retarder
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jul 14, 1998
Grant Date -
N/A
app pub date -
Oct 6, 1995
filing date -
Oct 12, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A drive unit comprising an engine, a transmission, a hydrodynamic retarder comprised of a rotor impeller wheel, a stator impeller wheel and a retarder housing enclosing both. A coolant circuit having coolant also serves as a working fluid of the retarder, and a pump impeller wheel is arranged coaxially with the rotor impeller wheel of the retarder which is used to circulate the coolant. Given this configuration, the space needed by the units which perform the pumping and braking functions of the drive unit are minimized while the efficiency of the pumping and braking functions are maximized.
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