Valves and valve actuation – Lost motion between actuator and valve – Overload release
Patent
1996-12-17
1998-08-25
Walton, George L.
Valves and valve actuation
Lost motion between actuator and valve
Overload release
251229, 251248, 2512495, 251279, 251305, 454 69, F16K 3144, F16K 3153
Patent
active
057975850
ABSTRACT:
A flap valve for a heating and/or air conditioning installation for a motor vehicle has a valve flap which is operated by a control device between an open position and a closed position. The control device comprises a driving lever which is coupled, through a link, to a driven lever fixed to the valve flap. The driving lever is rotated about its axis between an open position and a closed position of the driving lever, during which it passes through an intermediate position near to the closed position. The valve flap is closed when the driving lever reaches its intermediate position, so that the travel of the latter between its intermediate and closed positions is dead travel during which the valve is in the closed position of the valve and the link is in compression so as to change its effective length.
REFERENCES:
patent: 1998886 (1935-04-01), Scheid
patent: 2431659 (1947-11-01), Flounders
patent: 2942620 (1960-06-01), Medearis
patent: 3212350 (1965-10-01), Bradford
patent: 3520332 (1970-07-01), Willard
patent: 3929314 (1975-12-01), Stratynski
patent: 4073465 (1978-02-01), Sheppard
patent: 4200258 (1980-04-01), Gliatas
patent: 4913398 (1990-04-01), Ziaylek, Jr. et al.
patent: 5255891 (1993-10-01), Pearson et al.
patent: 5354234 (1994-10-01), Arold et al.
French Search Report dated 13 Sep. 1996.
Valeo Climatisation
Walton George L.
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