Fuel-vapor valve system and components therefor

A fuel-vapor system, comprising:

• at least one pliable segment configured to retain a shape of said at least one pliable segment;
• at least one flattened segment configured for applying an attachment and orientation member to said at least one flattened segment;
• at least one first segment configured for receiving a fuel vapor accessory in said at least one first segment;
• and
• an outlet opening for coupling to an outlet aperture of a fuel tank;
• wherein said first segment is provided with at least one venting opening and inlet apertures for operation of said fuel vapor accessory;
• wherein said fuel-vapor accessory is a roll over fuel-vapor valve comprising a housing defining a channel extending between a channel outlet and a channel inlet and further comprising a valve having a valve inlet port extending through a wall of the housing being in flow communication with said inlet aperture and a valve outlet port extending into said channel and a float member disposed between said valve inlet port and said valve outlet port and being displaceable between an open position of said valve wherein fluid flow is facilitated between said valve inlet port and said channel, and a closed position;
• wherein the channel inlet and the channel outlet extend coaxially with said first segment;
• wherein said housing is a tubular housing accommodating a cage assembly fixedly disposed in said housing and defining an inside space accommodating said float member;
• and
• wherein the channel inlet and the channel outlet are sealed from the inside space of the valve when said valve is in said closed position.

A fuel-vapor system, comprising;

• at least one pliable segment configured to retain a shape of said at least one pliable segment;
• at least one flattened segment configured for applying an attachment and orientation member to said at least one flattened segment;
• at least one first segment configured for receiving a fuel vapor accessory in said at least one first segment;
• and
• a first outlet opening for coupling to an outlet aperture of a fuel tank;
• wherein said first segment is provided with at least one venting opening and inlet apertures for operation of said fuel vapor accessory;
• wherein said fuel-vapor accessory is a roll over fuel-vapor valve comprising a housing defining a channel extending between a channel outlet and a channel inlet and further comprising a valve having a valve inlet port extending through a wall of the housing being in flow communication with said inlet aperture and a valve outlet port extending into said channel and a float member disposed between said valve inlet port and said valve outlet port and being displaceable between an open position of said valve wherein fluid flow is facilitated between said valve inlet port and said channel, and a closed position;
• wherein said housing is a tubular housing accommodating a cage assembly fixedly disposed in said tubular housing and defining an inside space accommodating said float member, and
• wherein the cage assembly comprises a pair of side plates configured for sealing engagement with inner walls of said first segment at respective sides of the at least one inlet port, a bridging member extending between the side plates and spaced from an inside surface of said first segment, said bridging member constituting the channel which is sealed from an inside space of the roll over fuel-vapor valve defined between said side plates and said bridging member, but via a second outlet opening formed in said bridging member, and a base member disposed between the side plates and configured with a boss supporting a float member biasing spring.

A fuel tank having a vehicle fuel-vapor system mounted in the fuel tank and comprising;

• a continuous tubing having a plurality of segments, including at least one pliable segment, at least one flattened segment, and at least one first segment, the plurality of segments being sequentially connected to one another along a longitudinal axis of the continuous tubing;
• the at least one pliable segment configured to retain a shape of said at least one pliable segment;
• the at least one flattened segment configured for applying an attachment and orientation member to said at least one flattened segment, said flattened segment having a mounting location in a form of a flattened tubular portion, to thereby prevent motion between said continuous tubing and said attachment and orientation member and to thereby fix an orientation between said continuous tubing and said attachment and orientation member;
• the at least one first segment configured for receiving a fuel vapor accessory in said at least one first segment;
• the fuel-vapor system further comprising an outlet opening for coupling to an outlet aperture of the fuel tank;
• wherein said first segment is provided with at least one venting opening and inlet apertures for operation of said fuel vapor accessory;
• wherein said fuel-vapor accessory is a roll over fuel-vapor valve comprising a housing defining a channel extending between a channel outlet and a channel inlet and further comprising a valve having a valve inlet port extending through a wall of the housing being in flow communication with said inlet aperture and a valve outlet port extending into said channel and a float member disposed between said valve inlet port and said valve outlet port and being displaceable between an open position of said valve wherein fluid flow is facilitated between said valve inlet port and said channel, and a closed position;
• and
• wherein the channel inlet and the channel outlet extend coaxially with said first segment.