# US 2014/0193250 A1 · Disc brake piston cap and disc brake equipped therewith

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- Number: US 2014/0193250 A1
- Document ID: US20140193250A1
- Status: Published application
- Kind: A1
- Application number: 14/233,549
- Filed: 2012-07-17
- Published: 2014-07-10
- Earliest claimed: 2011-07-20
- Assignees: Snecma
- Inventors: Thierry Georges Paul Papin; Lise Lacroix; Dominique Raulin
- Web page: https://patentgrep.com/patent/US20140193250A1

## CPC

- F01D 9/02: Nozzles; Nozzle boxes; Stator blades; Guide conduits {, e.g. individual nozzles (nozzle boxes F01D9/047)}
- F01D 5/147: {Construction, i.e. structural features, e.g. of weight-saving hollow blades (F01D5/148, F01D5/16 and F01D5/20 take precedence; blade shape F01D5/141; blades with cooling or heating channels or cavities F01D5/18; heating, heat-insulating or cooling means on blades F01D5/18)}
- F01D 9/041: {using blades (F01D5/148 takes precedence)}
- F04D 29/542: {Bladed diffusers (fixing blades to stators F01D9/042)}
- F05D 2260/96: Preventing, counteracting or reducing vibration or noise
- Y10T 29/49316: Impeller making
- F01D: NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES (machines or engines for liquids F03; non-positive displacement pumps F04D)
- F04D: NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J41/12; electrodynamic pumps H02K44/02)
- F05D: INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A plate closes the main part of a vane in two parts. An internal cavity is closed by the plate. Around a bearing surface of the plate, a groove receives an elastic seal, and the outer edge of the plate extends over the groove to compress the seal and to establish excellent leak proofing. The position of the plate may be guaranteed by centring pins penetrating into holes adjacent to the seal and which it fills when the pins have been removed, which completes the closing of the cavity. The plate has application in particular to stationary gas guide vanes in turbine engines.

## Claims

### Claim at position 1

1-5. (canceled)

### Claim 6

A turbine engine vane, comprising:
a main part containing a cavity and ribs extending into the cavity, and;
a plate joined to the main part while closing the cavity and while resting on the ribs,
wherein the plate is joined to the main part while resting on a bearing surface of the main part, set back with respect to an outer face of the main part that surrounds it, by a region adjacent to an outer edge of the plate.

### Claim 7 (depends on 6)

The turbine engine vane according to claim 6, wherein the outer edge of the plate extends above a groove of the main part which surrounds the bearing surface and is filled by a seal made of elastic material, the seal being compressed by the outer edge.

### Claim 8 (depends on 7)

The turbine engine vane according to claim 7, wherein the seal extends into aligned holes of the main part and of the plate, used to centre the plate with respect to the main part and next to the groove.

### Claim 9 (depends on 8)

The turbine engine vane according to claim 8, wherein the aligned holes extend into and in front of the ribs.

### Claim 10 (depends on 8)

A method of manufacturing the turbine engine vane according to claim 8, comprising:
introducing, after having laid the plate on the ribs and before fixing the plate onto the main part, centring pins into the aligned holes.

### Claim 11 (depends on 9)

A method of manufacturing the turbine engine vane according to claim 9, comprising:
introducing, after having laid the plate on the ribs and before fixing the plate onto the main part, centring pins into the aligned holes.