Spring system for leak test station
AssigneeFca US LLC
InventorHongyu Wang
Life of this patent
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Abstract
A leak test fixture for a part such as a cylinder head or block has a plurality of side face sealing plates, a bottom face sealing plate and a top face sealing plate. The sealing plates collectively clamp and seal the part during testing of the part. A plurality of biasing mechanisms are provided on at least one of the sealing plates. The plurality of biasing mechanisms compress toward a face of the at least one sealing plate during clamping of the part. The plurality of biasing mechanisms rebound after testing of the part thereby help separating the part from the at least one sealing plate.
Claims2
A leak test fixture for leak testing a part such as a cylinder head or block comprising:
- a plurality of side face sealing plates, a bottom face sealing plate and a top face sealing plate, the sealing plates collectively sealing the part placed on the fixture for testing;
- and
- a plurality of biasing mechanisms provided on at least one sealing plate of the sealing plates,
- wherein each biasing mechanism includes a housing that projects outward from a face of the least one sealing plate, the housings each define a bore that houses a compression spring attached to the face of the at least one plate, and a pad that is configured to rest against the part is attached to the compression spring;
- and
- the compression springs are configured to compress toward the face of the at least one sealing plate when the at least one sealing plate seals the part during testing, and the compression springs are configured to rebound away from the face of the at least one sealing plate when the at least one sealing plate is separated from the part after testing.
Dependencies are inferred from the claim text.