F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
F04B 53/10 (2006.01) F04B 39/12 (2006.01) F04B 53/16 (2006.01)
Patent
CA 2733240
A valve cover assembly for a pump. In an embodiment, the valve cover assembly comprises a first cylindrical member having a central axis and a first throughbore. In addition, the valve cover assembly comprises a second cylindrical member coaxially disposed within the first throughbore and rotatable relative to the first cylindrical member about the central axis between a first position and a second position. In the first position, the second cylindrical member is axially translatable relative to the first cylindrical member. In the second position, the second cylindrical member is axially fixed relative to the first cylindrical member.
L'invention porte sur un couvre-soupape de pompe qui dans une exécution comporte: un premier élément cylindrique présentant un axe central et un premier alésage traversant; un deuxième élément cylindrique coaxial avec le premier alésage traversant et pouvant tourner par rapport au premier élément cylindrique autour de l'axe central entre une première position et une deuxième position. Dans la première position, le deuxième élément cylindrique peut se translater axialement par rapport au premier élément cylindrique, et dans la deuxième position le deuxième élément cylindrique est axialement fixe par rapport au premier élément cylindrique.
Riley Andrew Dale
Weaver Randall Ferrain
Deeth Williams Wall Llp
National Oilwell Varco L.p.
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