# US 2016/0252016 A1 · Gas turbine filtration system with inlet filter orientation assembly

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- Number: US 2016/0252016 A1
- Document ID: US20160252016A1
- Status: Published application
- Kind: A1
- Application number: 15/148,490
- Filed: 2016-05-06
- Published: 2016-09-01
- Earliest claimed: 2013-11-15
- Assignees: BHA Altair, LLC
- Applicants: BHA Altair, LLC
- Inventors: Etienne René Pascal Jarrier; William Keith Albert Eyers; Peter John Duncan Smith; Richard Paul Steele
- Web page: https://patentgrep.com/patent/US20160252016A1

## CPC

- F02C 7/055: with intake grids, screens or guards
- B01D 46/0002: {Casings; Housings; Frame constructions}
- B01D 46/0005: {Mounting of filtering elements within casings, housings or frames (B01D46/2422 takes precedence)}
- B01D 46/023: {Pockets filters, i.e. multiple bag filters mounted on a common frame}
- B01D 46/121: V-type arrangements
- B01D 46/521: {using folded, pleated material}
- F02M 35/02416: {Fixing, mounting, supporting or arranging filter elements; Filter element cartridges}
- B01D 2265/026: with means for avoiding false mounting
- F05D 2230/64: using positioning or alignment devices for aligning or centring, e.g. pins
- F05D 2240/91: on a stationary structure
- F05D 2250/121: square
- F05D 2260/36: by a form fit connection, e.g. by interlocking
- Y10T 29/49895: Associating parts by use of aligning means [e.g., use of a drift pin or a "fixture"]
- F02C: GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS (construction of turbines F01D; jet-propulsion plants F02K; construction of compressors or fans F04; generating combustion products of high pressure or high velocity F23R; using gas turbines in compression refrigeration plants F25B11/00)
- B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28)
- F02M: SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- 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

The present application provides a filtration system for a gas turbine engine. The filtration system may include a holding frame with a positioning element extending therefrom and a filtration unit for mounting within the holding frame. The filtration unit may include a positioning slot therein such that the positioning element extends through the positioning slot when the filtration unit is mounted within the holding frame.

## Claims

### Claim 1

A filtration system for a gas turbine engine, comprising:
a holding frame;
the holding frame comprising a positioning element extending therefrom; and
a filtration unit for mounting within the holding frame;
the filtration unit including a mounting frame, the mounting frame comprising a positioning slot therein such that the positioning element extends through the positioning slot when the filtration unit is mounted within the holding frame.

### Claim 2 (depends on 1)

The filtration system of claim 1, wherein the positioning element comprises a positioning rod.

### Claim 3 (depends on 1)

The filtration system of claim 1, wherein the positioning element comprises a positioning protrusion.

### Claim 4 (depends on 1)

The filtration system of claim 1, wherein the filtration unit comprises a mini-pleat filter with a plurality of pleats therein or a bag filter with a plurality of pockets therein.

### Claim at position 5

5-6. (canceled)

### Claim 7 (depends on 1)

The filtration system of claim 1, wherein the mounting frame includes an end cap.

### Claim 8 (depends on 7)

The filtration system of claim 7, wherein the positioning slot is provided by the end cap.

### Claim 9 (depends on 7)

The filtration system of claim 7, wherein the end cap comprises a substantial W-shaped orientation.

### Claim 10 (depends on 1)

The filtration system of claim 1, wherein the filtration unit comprises a support screen.

### Claim 11 (depends on 1)

The filtration system of claim 1, wherein the filtration unit comprises a substantially square or rectangular shape.

### Claim 12 (depends on 1)

The filtration system of claim 1, wherein the holding frame comprises a holding frame aperture sized for the filtration unit.

### Claim 13 (depends on 1)

The filtration system of claim 1, wherein the positioning element comprises a straight or an angled configuration along the filtration unit.

### Claim 14 (depends on 1)

The filtration system of claim 1, wherein the positioning element centers the filtration unit within the holding frame.

### Claim 15

A method of ensuring a correct orientation of a filtration unit within a holding frame of a filtration system, comprising:
mounting a filtration unit within a holding frame the filtration unit including a mounting frame, the mounting frame comprising a positioning slot therein, the holding frame comprising a positioning element extending therefrom; and
wherein mounting includes aligning the positioning slot with the positioning element such that the positioning element extends through the positioning slot when the filtration unit is mounted within the holding frame.

### Claim 16

A filtration system for a gas turbine engine, comprising:
a holding frame;
the holding frame comprising a positioning rod extending therefrom; and
a square filter for mounting within the holding frame;
the square filter comprising a mounting frame;
the mounting frame comprising a positioning slot therein such that the positioning rod extends through the positioning slot when the square filter is mounted within the holding frame.

### Claim 17 (depends on 16)

The filtration system of claim 16, wherein the square filter comprises a mini-pleat filter with a plurality of pleats therein or a bag filter with a plurality of pockets therein.

### Claim 18

(canceled)

### Claim 19 (depends on 16)

The filtration system of claim 16, wherein the mounting frame of the square filter comprises a pair of end caps.

### Claim 20 (depends on 16)

The filtration system of claim 16, wherein the end cap comprises a substantial W-shaped orientation.

### Claim 21 (depends on 20)

The filtration system of claim 20, wherein at least one of the end caps provides the positioning slot.