Suction conveying system, such as a vacuum wastewater system for an aircraft
First Claim
1. A suction conveying system for conveying a conveyed material from a receptacle to a collection container, comprising:
- a receptacle;
a collection container;
a collection pipe that extends substantially horizontally and is connected to said collection container;
a pipe bend;
a branch pipe having a first end connected to said receptacle and a second end joining said pipe bend; and
a pipe junction interposed between and joining together said pipe bend and said collection pipe;
wherein;
said pipe junction includes a main pipe leg and a branch pipe leg joined to said main pipe leg to form an acute junction angle therebetween, with an acute junction entry edge formed where said branch pipe leg joins said main pipe leg;
said collection pipe includes an upstream pipe section and a downstream pipe section, and said main pipe leg of said pipe junction is interposed and joined between said upstream pipe section and said downstream pipe section; and
said branch pipe leg of said pipe junction and said receptacle are respectively located on opposite sides of said collection pipe.
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Accused Products
Abstract
A vacuum wastewater system for an aircraft includes a collection pipe leading to a collection container, a branch pipe leading from a receptacle, and a Y-shaped pipe junction with an acute entry angle connecting the branch pipe into the collection pipe on a side thereof opposite from the receptacle. The branch pipe crosses over the collection pipe just upstream of the junction. An arcuate pipe bend joins a straight portion of the branch pipe to a straight branch pipe leg of the pipe junction in substantially the same horizontal plane in which the collection pipe extends. This configuration deflects the flow of conveyed material so that centrifugal force holds the material along the pipe wall away from the crotch of the Y-shaped junction. This minimizes the reverse flow against the main conveying direction and deposition and accumulation of material in the collection pipe upstream from the pipe junction.
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Citations
19 Claims
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1. A suction conveying system for conveying a conveyed material from a receptacle to a collection container, comprising:
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a receptacle;
a collection container;
a collection pipe that extends substantially horizontally and is connected to said collection container;
a pipe bend;
a branch pipe having a first end connected to said receptacle and a second end joining said pipe bend; and
a pipe junction interposed between and joining together said pipe bend and said collection pipe;
wherein;
said pipe junction includes a main pipe leg and a branch pipe leg joined to said main pipe leg to form an acute junction angle therebetween, with an acute junction entry edge formed where said branch pipe leg joins said main pipe leg;
said collection pipe includes an upstream pipe section and a downstream pipe section, and said main pipe leg of said pipe junction is interposed and joined between said upstream pipe section and said downstream pipe section; and
said branch pipe leg of said pipe junction and said receptacle are respectively located on opposite sides of said collection pipe. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification