Patent US3625435A successfully refreshed from Google Patents.
US3625435A
Expired / Lapsed
US
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Dual orifice quadruplet impingement injector
Assignee: RTX Corp
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Filing: 1967-02-14
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Granted: 1971-12-07
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Expires: 1987-02-14
Abstract
Abstract An injector head for two propellants wherein the propellants are fed through internal passageways in the injector head and are ejected from the face of the injector in a quadruplet pattern of openings. The invention herein described was made in the course of or under a contract with the Department of the Air Force.
Inventors
- 👤 James P Mitchell
- 👤 Bruce T Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:46
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/42; F02K9/44; F02K9/52
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
86 words
In combination, an injector head having a body, said body having an injector face, said injector face including a first and second plurality of groups of four holes positioned generally in checkerboard fashion so that each group of holes of each plurality is surrounded on four sides by groups of holes of the other plurality, means for directing one propellant through one of said plurality of groups of holes, and means for directing a second propellant through the other of said plurality of groups of holes.
Claim 2
Dependent Claim
86 words
In combination, an injector head having a body, said body having an injector face, said injector face including a first and second plurality of groups of four holes positioned generally in checkerboard fashion so that each group of holes of each plurality is surrounded on four sides by groups of holes of the other plurality, means for directing one propellant through one of said plurality of groups of holes, and means for directing a second propellant through the other of said plurality of groups of holes.
Claim 3
Dependent Claim
50 words
A combination as set forth in claim 1 wherein the inner corner holes of each group of four holes of a square set of four groups of holes have their outlet flows directed so as to impinge on each other at a location spaced from the face of the injector.
Claim 4
Dependent Claim
40 words
A combination as set forth in claim 2 wherein each first and second plurality of groups have their corner holes directed so as to form an angle of approximately 45* with a line perpendicular to the face of the injector.
Claim 5
Dependent Claim
25 words
A combination as set forth in claim 1 wherein one nozzle assembly is connected to each group of four holes positioned generally in checkerboard fashion.
Claim 6
Dependent Claim
59 words
A combination as set forth in claim 4 wherein each nozzle assembly includes a pintle member fixed in said body, said pintle member having an upstanding projection with four tubular members at its upper end so positioned that each tubular member has its free end opening directed into one of the four holes of a group of four holes.
Claim 7
Dependent Claim
44 words
A combination as set forth in claim 5 wherein the means for directing one propellant through one of said plurality groups of holes includes means for directing the propellant through the extension of the pintle members to the tubular members cooperating with said holes.
Claim 8
Dependent Claim
115 words
In combination, an injector head having a body, said body having an injector face, said injector face including a first and second plurality of four-hole groups, said first plurality of four hole groups being positioned generally in checkerboard fashion with said second plurality of four-hole groups, each four-hole group of said first plurality being surrounded on each of its four sides by holes of the second plurality and each four-hole group of said second plurality being surrounded on each of its four sides by holes of the first plurality, means for directing one propellant through said first plurality of four-hole groups, and means for directing a second propellant through said second plurality of four-hole groups.
Claim 9
Dependent Claim
115 words
In combination, an injector head having a body, said body having an injector face, said injector face including a first and second plurality of four-hole groups, said first plurality of four hole groups being positioned generally in checkerboard fashion with said second plurality of four-hole groups, each four-hole group of said first plurality being surrounded on each of its four sides by holes of the second plurality and each four-hole group of said second plurality being surrounded on each of its four sides by holes of the first plurality, means for directing one propellant through said first plurality of four-hole groups, and means for directing a second propellant through said second plurality of four-hole groups.
Claim 10
Dependent Claim
123 words
In combination, an injector head having a body, said body having an injector face, said injector face including a first and second plurality of four-hole groups, said first plurality of four-hole groups being positioned generally in checkerboard fashion with said second plurality of four-hole groups, the inner corner holes of each four-hole group of a square set of four groups of holes having their outlet flows directed so as to impinge on each other at a location spaced from the face of the injector, the sets of the inner corner holes forming a second checkerboard pattern, means for directing one propellant through said first plurality of four-hole groups, and means for directing a second propellant through the said second plurality of four-hole groups.
Claim 11
Dependent Claim
123 words
In combination, an injector head having a body, said body having an injector face, said injector face including a first and second plurality of four-hole groups, said first plurality of four-hole groups being positioned generally in checkerboard fashion with said second plurality of four-hole groups, the inner corner holes of each four-hole group of a square set of four groups of holes having their outlet flows directed so as to impinge on each other at a location spaced from the face of the injector, the sets of the inner corner holes forming a second checkerboard pattern, means for directing one propellant through said first plurality of four-hole groups, and means for directing a second propellant through the said second plurality of four-hole groups.
References Cited (Backward Citations)
US2405465A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |