The strainer comprises an unitary body having a main section and a collar section located around the main section. The collar section has a substantially outwardly-projecting portion located around the main section and an upstream projecting portion located around the substantially outwardly-project
The strainer comprises an unitary body having a main section and a collar section located around the main section. The collar section has a substantially outwardly-projecting portion located around the main section and an upstream projecting portion located around the substantially outwardly-projecting portion.
대표청구항▼
What is claimed is: 1. A strainer for a gas turbine engine, the strainer having an upstream side and a downstream side, and comprising an unitary body having a main section and a collar section located around the main section, at least the main section being permeable to a fluid, the collar section
What is claimed is: 1. A strainer for a gas turbine engine, the strainer having an upstream side and a downstream side, and comprising an unitary body having a main section and a collar section located around the main section, at least the main section being permeable to a fluid, the collar section having a substantially outwardly-projecting portion located around the main section and an upstream projecting portion located around the substantially outwardly-projecting portion, the upstream projecting portion being located outwardly from the outwardly-projecting portion. 2. The strainer as defined in claim 1, wherein the strainer is symmetrical around a central axis. 3. The strainer as defined in claim 1, wherein the strainer is devoid of welded parts. 4. The strainer as defined in claim 1, wherein the body has a substantially uniform thickness. 5. The strainer as defined in claim 1, wherein the strainer is located in a ferrule. 6. The strainer as defined in claim 1, wherein the main section extends in the downstream side. 7. The strainer as defined in claim 1, wherein the main section is dome-shaped and extends in the upstream side. 8. The strainer as defined in claim 1, wherein the body is at least partially made of a sintered wire mesh. 9. The strainer as defined in claim 1, wherein the body is at least partially made of a laser drilled metal sheet. 10. The strainer as defined in claim 1, wherein the fluid includes hydraulic fluid, the strainer having holes or apertures in the main section that cover more than 50% of a total surface of the main section. 11. The strainer as defined in claim 1, wherein the collar section has an arc-shaped cross section. 12. The strainer as defined in claim 11, wherein the arc-shaped cross section of the collar section is curved of at least 90 degrees. 13. An unitary strainer for use in a tube coupling of a gas turbine engine, the tube coupling including a conduit portion, a shoulder portion surrounding an inlet of the conduit portion and extending radially with respect to the inlet, and a groove portion immediately adjacent to and upstream of the shoulder portion, the strainer having a first portion being engageable against the shoulder portion, and a second portion engageable within the grooved portion when the shoulder portion and the first portion are coupled. 14. The strainer as defined in claim 13, wherein the second portion is substantially arc shaped. 15. The strainer as defined in claim 14, wherein the second portion has an outer diameter larger than an inner diameter of the grooved portion, the grooved portion being substantially annular. 16. A method of seating a strainer in a corresponding seat, the strainer having an unitary body, the method comprising: pushing the strainer in a downstream direction through a radial pinch and towards the seat; abutting an outer portion of the strainer against a shoulder at a downstream side of the seat; interferingly engaging the outer part of the strainer into a groove of the seat, the strainer having an outermost portion which exerts a retaining force against the groove of the seat for locking the strainer when fully seated.
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