Described herein is an improved externally mounted pressure relief valve that is especially adapted for rail tank cars or other large closed containers that contain or transport fluids, including liquids and gases. The pressure relief valve comprises a plurality of spring assemblies, and each spring
Described herein is an improved externally mounted pressure relief valve that is especially adapted for rail tank cars or other large closed containers that contain or transport fluids, including liquids and gases. The pressure relief valve comprises a plurality of spring assemblies, and each spring assembly contains a pre-determined number of spring leaves. Each spring assembly is coiled upon a corresponding spring drum, and each spring drum is penetrated by a corresponding spring drum bolt. The spring assemblies are preferably aligned in at least two horizontal planes that are parallel to each other and normal to the vertical length of a spring block. The spring block and sealing disk are mounted vertically over the valve seat and within the confines of vertically extending spring brackets.
대표청구항▼
1. A pressure relief valve comprising constant force spring assemblies, a sealing disc, and a single adjustment screw, said pressure relief valve further comprising a single integral one component spring block,said single spring block comprising a single larger upper integral solid polyhedral segmen
1. A pressure relief valve comprising constant force spring assemblies, a sealing disc, and a single adjustment screw, said pressure relief valve further comprising a single integral one component spring block,said single spring block comprising a single larger upper integral solid polyhedral segment and a single smaller integral solid polyhedral lower segment,said single larger upper integral solid polyhedral segment being larger than said single smaller integral solid polyhedral lower segment, said single upper integral solid polyhedral segment being vertically aligned with said single smaller integral solid polyhedral lower segment,said spring block comprising a first plurality of aligned apertures along a first horizontal plane through said single larger upper integral solid polyhedral segment, anda second plurality of said aligned apertures being aligned along a second horizontal plane through said single lower smaller integral solid polyhedral lower segment, andsaid first horizontal plane and said second horizontal planes being in spaced vertical alignment with each other,said pressure relief valve further comprising only a first spring bracket and a second spring bracket,said pressure relief valve further comprising a first spring bracket brace bar and said second spring bracket brace bar,said first spring bracket brace bar and said second spring bracket brace bar each mechanically attaching said first spring bracket to said second spring bracket. 2. A pressure relief valve comprising constant force spring assemblies, a sealing disc, and a single adjustment screw, said pressure relief valve further comprising a single integral one component spring block,said single spring block comprising a single larger upper integral solid polyhedral segment and a single smaller integral solid polyhedral lower segment,said single larger upper integral solid polyhedral segment being larger than said single smaller integral solid polyhedral lower segment, said single upper integral solid polyhedral segment being vertically aligned with said single smaller integral solid polyhedral lower segment,said spring block comprising a first plurality of aligned apertures along a first horizontal plane through said single larger upper integral solid polyhedral segment, anda second plurality of said aligned apertures being aligned along a second horizontal plane through said single smaller integral solid polyhedral lower segment, andsaid first horizontal plane and said second horizontal plane being in spaced vertical alignment with each other,said pressure relief valve further comprising a single first rigid component and a single second rigid component, a first single rigid spring bracket and a second single rigid spring bracket, andwherein said first single spring bracket and said second spring bracket each comprise a single bracket upper edge,said single first rigid component and said single second rigid component each attaching to said first spring bracket and said second spring bracket along corresponding said spring bracket upper edges,andwherein said first spring bracket and said second spring bracket rigidly attach to each other. 3. A pressure relief valve comprising constant force spring assemblies, a sealing disc, and a single adjustment screw, said pressure relief valve further comprising a single integral one component spring block,said single spring block comprising a single larger upper integral solid polyhedral segment and a single smaller integral solid polyhedral lower segment,said single larger upper integral solid polyhedral segment being larger than said single smaller integral solid polyhedral lower segment, said single upper integral solid polyhedral segment being vertically aligned with said single smaller integral solid polyhedral lower segment,said spring block comprising a first plurality of aligned apertures along a first horizontal plane through said single larger upper integral solid polyhedral segment, anda second plurality of said aligned apertures being aligned along a second horizontal plane through said single lower smaller integral solid polyhedral lower segment, andsaid first horizontal plane and said second horizontal planes being in spaced vertical alignment with each other,said pressure relief valve further comprising a first spring bracket and a second spring bracket,said first spring bracket comprising a first upper spring bracket edge and said second spring bracket each comprising a second upper spring bracket edge,said first spring bracket upper edge and said second spring bracket upper edge each comprising a first upper spring bracket recess and a second upper spring bracket recess,each upper spring bracket recess being an integral structural feature of a corresponding said upper spring bracket edge,each upper spring bracket recess comprising a single aperture,said pressure relief valve further comprising a first bracket brace bar and a second bracket brace bar,said first bracket brace bar and said second bracket brace bar each comprising two apertures,said two apertures each congruently aligning with said apertures within said spring bracket recesses to attach said spring bracket brace bars to each said spring bracket upper edge with corresponding inserted mechanical fasteners. 4. A pressure relief valve comprising constant force spring assemblies, a sealing disc, and a single adjustment screw, said pressure relief valve further comprising a single integral one component spring block,said single spring block comprising a single larger upper integral solid polyhedral segment and a single smaller integral solid polyhedral lower segment,said single larger upper integral solid polyhedral segment being larger than said single smaller integral solid polyhedral lower segment, said single upper integral solid polyhedral segment being vertically aligned with said single smaller integral solid polyhedral lower segment,said spring block comprising a first plurality of aligned apertures along a first horizontal plane through said single larger upper integral solid polyhedral segment, anda second plurality of said aligned apertures being aligned along a second horizontal plane through said single smaller integral solid polyhedral lower segment, andsaid first horizontal plane and said second horizontal plane being in spaced vertical alignment with each other,said spring block further comprising a first protruding segment and a second protruding segment,said pressure relief valve further comprising a first spring bracket and a second spring bracket,and wherein said first spring bracket and said second spring bracket each comprising a spring bracket rigid retaining structure, andsaid first protruding segment and said second protruding each inserting within a corresponding said rigid retaining structure,said first protruding segment and said second protruding segment each moving vertically exclusively within a single said corresponding said spring bracket rigid retaining structure,said spring block thereby moving exclusively vertically within a valve interior. 5. A pressure relief valve comprising constant force spring assemblies, a sealing disc, and a single adjustment screw, said pressure relief valve further comprising a single integral one component spring block,said single spring block comprising a single larger upper integral solid polyhedral segment and a single smaller integral solid polyhedral lower segment,said single larger upper integral solid polyhedral segment being larger than said single smaller integral solid polyhedral lower segment, said single upper integral solid polyhedral segment being vertically aligned with said single smaller integral solid polyhedral lower segment,said spring block comprising a first plurality of aligned apertures along a first horizontal plane through said single larger upper integral solid polyhedral segment, anda second plurality of said aligned apertures being aligned along a second horizontal plane through said single smaller integral solid polyhedral lower segment, andsaid first horizontal plane and said second horizontal planes being in spaced vertical alignment with each other,said sealing disk comprising a sealing disk lower surface,said sealing disk further comprising a lower sealing disk surface and said sealing disk lower surface comprising a continuous rigid circular retainer groove,said continuous rigid circular retainer groove retaining and compressing a flexible circular seal, said flexible circular seal comprising a flexible seal exterior edge,said circular rigid retainer groove comprising a lip, said lip being an integral part of said continuous circular rigid retainer groove,said lip compressing and retaining said flexible circular seal along said flexible seal exterior edge,said lip and said circular rigid retain groove comprising the sole structural features for compressing and retaining said flexible circular seal. 6. A pressure relief valve comprising constant force spring assemblies, a sealing disc, and a single adjustment screw, said pressure relief valve further comprising a single integral one component spring block,said single spring block comprising a single larger upper integral solid polyhedral segment and a single smaller integral solid polyhedral lower segment,said single larger upper integral solid polyhedral segment being larger than said single smaller integral solid polyhedral lower segment, said single upper integral solid polyhedral segment being vertically aligned with said single smaller integral solid polyhedral lower segment,said spring block comprising a first plurality of aligned apertures along a first horizontal plane through said single larger upper integral solid polyhedral segment, anda second plurality of said aligned apertures being aligned along a second horizontal plane through said single smaller integral solid polyhedral lower segment, andsaid first horizontal plane and said second horizontal plane being in spaced vertical alignment with each other,said spring block comprising an integral first structural feature and an integral second structural feature, a first spring block side and a second spring block side,said first structural feature being located upon said first side of said spring block and said second structural feature being located along said second side of said spring block, said first side of said spring block opposing said second side of said spring block,said first structural feature being integral to said first side of said spring block and said second structural feature being integral to said second side of said spring block,said first structural feature being identical to said second structural feature, said first structural feature and said second structural feature each being locating exclusively upon sides of said spring block that do not comprise said horizontally aligned apertures,said pressure relief valve further comprising a first spring bracket and a second spring bracket, said first spring bracket comprising a first spring bracket slot and said second spring bracket comprising a second spring bracket slot,said first structural feature fitting exclusively within said first spring bracket slot, and said second structural feature fitting exclusively within said second spring bracket slot,said first structural feature moving vertically exclusively within said first spring bracket slot and said second structural feature moving vertically exclusively within said second spring bracket slot. 7. A pressure relief valve comprising constant force spring assemblies, a sealing disc, and a single adjustment screw, said pressure relief valve further comprising a single integral one component spring block,said single spring block comprising a single larger upper integral solid polyhedral segment and a single smaller integral solid polyhedral lower segment,said single larger upper integral solid polyhedral segment being larger than said single smaller integral solid polyhedral lower segment, said single upper integral solid polyhedral segment being vertically aligned with said single smaller integral solid polyhedral lower segment,said spring block comprising a first plurality of aligned apertures along a first horizontal plane through said single larger upper integral solid polyhedral segment, anda second plurality of said aligned apertures being aligned along a second horizontal plane through said single smaller integral solid polyhedral lower segment, andsaid first horizontal plane and said second horizontal planes being in spaced vertical alignment with each other,said single larger upper integral solid polyhedral segment comprising a longitudinal bore and said single smaller integral solid polyhedral lower segment not comprising said longitudinal bore.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.