Abstract:
A filter cartridge includes a filter media defining an interior space, and having a first end and a second end, a first end plate connected to the first end, and a second end plate connected to the second end. A pin is connected to the second end plate and extends downwardly into the interior space. The pin defines a flow passage threrethrough that communicates the interior space with an outside of the filter cartridge.
Abstract:
A filter cartridge is described that is designed to accommodate for example dual stage filtration. The filter cartridge has an endplate structure formed of a heat cured material, such as polyurethane, where at least one of the top end and the bottom end of the outer filter and the inner filter are embedded within the heat cured material. The heat cured material can provide an endplate structure that is convenient for manufacture and that has one or more sealing surfaces to seal with a housing that the filter cartridge is assembled with. For example, the heat cured material of the endplate can seal non-filtered fluid from filtered fluid that has passed through each of the filtration stages available in the cartridge.
Abstract:
An automatic draining system is provided. The system includes a floating valve having a density less than a first fluid and greater than a second fluid. The floating valve has a floating position that allows the first fluid to pass through a floating valve opening when the floating valve compartment is filed with the first fluid, and a sealing position that prevents the first and second fluids from passing through the floating valve opening when the floating valve compartment is not filled with the first fluid. Also included is a solenoid valve in fluid communication with the floating valve compartment. The solenoid valve has a solenoid opening that is open when the solenoid valve is energized and is closed when the solenoid valve is de-energized. Further included is a filter media downstream of the solenoid valve that filters the first liquid prior to the first fluid exiting the system.
Abstract:
A filter cartridge is described that is designed to accommodate multi-stage filtration, for example dual stage filtration. A filter cartridge includes an outer filter with an endplate and an inner filter arranged within the central axis of the outer filter and that includes an endplate. The endplate of the outer filter includes an outer portion and an inner portion substantially surrounded by the outer portion. The inner portion is axially positioned relative to the outer portion and distal to the inner and outer filters relative to the outer portion. The inner portion includes an upwardly extending flange. The endplate of the inner filter includes a downwardly extending flange. The endplates of the outer and inner filters are arranged in a snap fit connection through engagement of the upwardly extending and the downwardly extending flanges. The endplate structure can provide a filter cartridge with filters of generally equal lengths.
Abstract:
A filter within a filter cartridge design is described that includes a sealing structure on an endplate of an outer filter element. Generally, the sealing structure includes an annular flange on the endplate that can directly seal against an interior surface of a housing when the filter cartridge is assembled for use. During filtration, the annular flange prevents a working fluid from bypassing the outer filter element. The sealing flange can seal with the housing in a press fit engagement.
Abstract:
A fluid filter is described, where a drain valve is configured to move back and forth into open and closed positions. The drain valve and a filter cartridge are in a structural arrangement such that the drain valve is put in an open position before the filter and/or a filter element therein can be serviced or replaced.
Abstract:
Gemäß einem Satz von Ausführungsformen schließt das Filtrationssystem ein Gehäuse mit einem Kraftstoffeinlass und einem Kraftstoffauslass ein. Eine Pumpe steht mit dem Kraftstoffauslass in Fluidverbindung. Ein Kraftstofftank steht mit dem Kraftstoffeinlass in Fluidverbindung. Ein thermisches Rücklaufventil schließt einen Einlass des thermischen Rücklaufventils und einen Auslass des thermischen Rücklaufventils ein. Der Einlass des thermischen Rücklaufventils nimmt erhitzten Kraftstoff auf und der Auslass des thermischen Rücklaufventils steht mit dem Kraftstofftank in Fluidverbindung. Ein Fluiddurchlass befindet sich zwischen dem Einlass des thermischen Rücklaufventils und dem Auslass des thermischen Rücklaufventils. Ein Durchlassblockiermechanismus, aufweisend eine erste Position und eine zweite Position. Der Durchlassblockiermechanismus ist dazu aufgebaut, eine Fluidströmung durch den Fluiddurchlass zu verhindern, wenn er sich in der ersten Position befindet. Der Durchlassblockiermechanismus ist dazu aufgebaut, eine Fluidströmung durch den Fluiddurchlass zu erlauben, wenn er sich in der zweiten Position befindet.
Abstract:
Des systèmes de filtration ne pouvant pas fonctionner sans filtre sont décrits. Les systèmes de filtration (100) comportent un clapet (126) disposé dans un boîtier de filtre. Le clapet (126) est normalement poussé en position fermée quand une cartouche de filtrage (104) n'est pas insérée dans le boîtier de filtre, de telle sorte que qu'un carburant présent dans le boîtier de filtre ne puisse pas s'écouler jusqu'à un moteur à combustion interne. La cartouche de filtrage (104) comprend un élément filtrant primaire (108) et un dispositif de crépine (118) hydrophobe. Le dispositif de crépine (118) hydrophobe comprend un doigt d'actionnement du clapet (134) qui coopère avec le clapet (126) et le met en position ouverte quand le dispositif de crépine (118) hydrophobe est logé en position de fonctionnement dans le boîtier de filtre. De la sorte, du carburant ne peut passer du boîtier de filtre aux injecteurs de carburant que lorsque le dispositif de crépine hydrophobe (118) est disposé en position de fonctionnement dans le boîtier. Le dispositif de crépine hydrophobe (118) est une pièce distincte de l'élément filtrant primaire (108), ce qui permet de remplacer séparément l'élément filtrant primaire (108) et le dispositif de crépine hydrophobe (118).