B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 27/10 (2006.01) B01D 35/147 (2006.01) B01D 35/153 (2006.01)
Patent
CA 2444985
A filter head (10) and a spin-on fuel filter element (12) where the filter head (10) includes an inlet (16) and an outlet (18). A threaded nipple extends from a base of the filter head and includes a central flow passage (77). A valve member (80) located in the flow passage (77) is normally closed. The valve member (80) includes a threaded portion (85) extending outwardly from nipple (76). The filter element (12) includes upper and lower end caps (96, 97). The filter element (12) is located in a housing (92) having a tap plate (122). The tap plate (122) includes a threaded central opening (124) for screwing the filter element (12) onto the nipple (76). The upper end cap (96) supports a threaded sleeve (18) which is screwed onto the valve member (80). The sleeve/valve member combination has a different thread pitch than the tap plate/nipple combination, which moves the valve member (80) to an open position when the filter element is installed on the filter head.
L'invention concerne une tête de filtrage (10) et un élément à visser de filtration de combustible (12), ladite tête (10) comportant une entrée (16) et une sortie (18). Un mamelon fileté s'étend d'une base de ladite tête de filtrage et comprend un passage d'écoulement central (77). Un élément de soupape (80) situé dans ledit passage (77) est normalement fermé. Cet élément de soupape (80) est pourvu d'une portion filetée (85) s'étendant vers l'extérieur à partir du mamelon (76). L'élément filtrant (12) possède des couvercles d'extrémités supérieure et inférieure (96, 97). Cet élément filtrant (12) se trouve dans un logement (92) pourvu d'une plaque de taraud (122). Celle-ci (12) comporte une ouverture centrale filetée (124) permettant de visser l'élément filtrant (12) sur le mamelon (76). Le couvercle d'extrémité supérieure (96) soutient un manchon fileté (18) vissé sur l'élément de soupape (80). La combinaison des éléments de soupape/de manchon a un pas de filetage différent de la combinaison plateau/mamelon, ce qui permet de déplacer l'élément de soupape (80) à une position ouverte, lorsque l'élément filtrant est fixé sur la tête de filtrage.
Parker-Hannifin Corporation
Ridout & Maybee Llp
LandOfFree
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