Self-stabilizing pressure compensated injector

Claim 2

In combination, means defining a combustion space, a source of fluid to be utilized in combustion in said space, and means defining a supply flow passage from said source leading to said space, said means comprising a main supply passage portion connected to said source, a pair of diverging discharge passage portions leading from said main passage portion to said combustion space and opening into said combustion space at spaced locations therein, and means defining auxiliary passage portions connected between the junction of the diverging passage portions and respective regions in communication with the combustion space and located substantial flow distances downstream from said junction, whereby said auxiliary passage portions act as fluid amplifier pressure sensors and react on the fluid stream passing said junction to direct the flow of the fluid through one or the other of said diverging passage portions in accordance with the pressures at said respective regions, wherein said combustion space includes a boundary wall, said diverging discharge passage portions and said auxiliary passage portions being formed in said boundary wall.

Claim 3

The structural combination of claim 1, and wherein the downstream ends of said auxiliary passagE portions are located adjacent the downstream ends of the diverging discharge passage portions.

Claim 4

The structural combination of claim 2, and wherein the downstream ends of said auxiliary passage portions are exposed directly to the combustion space.

Claim 5

The structural combination of claim 3, and wherein the downstream ends of said auxiliary passage portions are located outwardly adjacent the downstream ends of said diverging discharge passage portions.

Claim 6

The structural combination of claim 1, and wherein said boundary wall is provided with a plurality of said supply flow passage means distributed thereover and wherein the downstream ends of the auxiliary passage portions thereof are located to detect pressure waves in the combustion space.

Claim 7

The structural combination of claim 5, and wherein said supply flow passage means are arranged in concentric groups in said boundary wall.

Claim 8

The structural combination of claim 4, and wherein the downstream ends of the auxiliary passage portions and the diverging discharge passage portions are located substantially in the same plane.

Claim 9

In combination, means defining a combustion space, a source of fluid to be utilized in combustion in said space, and means defining a supply flow passage from said source leading to said space, said means comprising a main supply passage portion connected to said source, a pair of diverging discharge passage portions leading from said main passage portion to said combustion space and opening into said combustion space at spaced locations therein, and means defining auxiliary passage portions connected between the junction of the diverging passage portions and respective regions in communication with the combustion space and located substantial flow distances downstream from said junction, whereby said auxiliary passage portions act as fluid amplifier pressure sensors and react on the fluid stream passing said junction to direct the flow of the fluid through one or the other of said diverging discharge passage portions in accordance with the pressures at said respective regions, wherein the downstream ends of said auxiliary passage portions are located adjacent the downstream ends of the diverging discharge passage portions, and wherein the downstream ends of the auxiliary passage portions communicate with the respective diverging discharge passage portions at points in said discharge passage portions spaced substantial flow distances from said junction, whereby to cause the flow stream to oscillate discretely between the divergent discharge passage portions.

Claim 10

In combination, means defining a combustion space, a source of fluid to be utilized in combustion in said space, and means defining a supply flow passage from said source leading to said space, said means comprising a main supply passage portion connected to said source, a pair of diverging discharge passage portions leading from said main passage portion to said combustion space and opening into said combustion space at spaced locations therein, and means defining auxiliary passage portions connected between the junction of the diverging passage portions and respective regions in communication with the combustion space and located substantial flow distances downstream from said junction, whereby said auxiliary passage portions act as fluid amplifier pressure sensors and react on the fluid stream passing said junction to direct the flow of the fluid through one or the other of said diverging discharge passage portions in accordance with the pressures at said respective regions, wherein the downstream ends of said auxiliary passage portions are located adjacent the downstream ends of the diverging discharge passage portions, and wherein the downstream ends of the auxiliary passage portions communicate with the respective diverging discharge passage portions at points in said discharge passage portions spaced substantial flow distances from said junction, whereby to cause the flow stream to oscillate discretely between the divergent discharge passage portions.

Claim 11

The structural combination of claim 8, and wherein the upstream ends of said auxiliary passage portions are diametrically-opposite each other and are substantially coplanar with said junction.

Claim 12

The structural combination of claim 9, and wherein said combustion space includes a boundary wall, said boundary wall being provided with a plurality of said supply flow passage means distributed thereover, and wherein said diverging discharge passage portions and said auxiliary passage portions are formed in said boundary wall.

Claim 13

The structural combination of claim 10, and wherein said boundary wall is formed with a supply manifold communicating with the main supply passage portions of the supply flow passage means.

Claim 14

In a jet engine, an elongated main housing having a compressed air inlet duct at one end and having a jet outlet duct at its other end, a burner assembly mounted in the intermediate portion of said housing and being spaced from the wall surfaces of the housing to define a cooling air flow space between the burner assembly and the housing, said burner assembly comprising a casing defining a combustion space, a source of fluid to be utilized in combustion in said combustion space, means defining a supply flow passage from said source leading to said combustion space, said means comprising a main supply passage portion connected to the source, a pair of diverging discharge passage portions leading from said main Passage portion to said combustion space and opening into said combustion space at spaced locations therein, and means defining auxiliary passage portions connected between the junction of the diverging passage portions and respective regions in communication with the combustion space and located substantial flow distances downstream from said junction, whereby said auxiliary passage portions act as fluid amplifier sensors and react on the fluid stream passing said junction to direct the flow of the fluid through one or the other of said diverging passage portions in accordance with the pressures at said respective regions, said combustion space including a boundary wall, said diverging passage portions and said axuiliary passage portions being formed in said boundary wall.

Claim 15

In a jet engine, an elongated main housing having a compressed air inlet duct at one end and having a jet outlet duct at its other end, a burner assembly mounted in the intermediate portion of said housing and being spaced from the wall surfaces of the housing to define a cooling air flow space between the burner assembly and the housing, said burner assembly comprising a casing defining a combustion space, a source of fluid to be utilized in combustion in said combustion space, means defining a supply flow passage from said source leading to said combustion space, said means comprising a main supply passage portion connected to the source, a pair of diverging discharge passage portions leading from said main Passage portion to said combustion space and opening into said combustion space at spaced locations therein, and means defining auxiliary passage portions connected between the junction of the diverging passage portions and respective regions in communication with the combustion space and located substantial flow distances downstream from said junction, whereby said auxiliary passage portions act as fluid amplifier sensors and react on the fluid stream passing said junction to direct the flow of the fluid through one or the other of said diverging passage portions in accordance with the pressures at said respective regions, said combustion space including a boundary wall, said diverging passage portions and said axuiliary passage portions being formed in said boundary wall.

Claim 16

The jet engine of claim 12, and wherein the wall of the casing is formed adjacent said combustion space with a plurality of secondary air injection passages having divergent inner branches opening into the combustion chamber for bleeding air into the combustion space.

Claim 17

The jet engine of claim 12, and wherein the downstream ends of said auxiliary passage portions communicate with the respective diverging passage portions at locations spaced downstream from said junction.

Claim 18

The jet engine of claim 14, and wherein the casing is located substantially coaxially in said main housing to define a substantially annular cooling air flow space between the casing and the main housing.

Claim 19

The jet engine of claim 15, and wherein the wall of the casing defining the inner boundary of said cooling air flow space is formed with secondary air injector passages having divergent inner branches leading to said combustion space.

Claim 20

In a jet engine, an elongated main housing having a compressed air inlet duct at one end and having a jet outlet duct at its other end, a burner assembly mounted in the intermediate portion of said housing and being spaced from the wall surfaces of the housing to define a cooling air flow space between the burner assembly and the housing, said burner assembly comprising a casing defining a combustion space, a source of fluid to be utilized in combustion in said combustion space, means defining a supply flow passage from said source leading to said combustion space, said means comprising a main supply passage portion connected to the source, a pair of diverging discharge passage portions leading from said main passage portion to said combustion space and opening into said combustion space at spaced locations therein, and means defining auxiliary passage portions connected between the junction of the diverging passage portions and respective regions in communication with the combustion space and located substantial flow distances downstream from said junction, whereby said auxiliary passage portions act as fluid amplifier sensors and react on the fluid stream passing said junction to direct the flow of the fluid through one or the other of said diverging passage portions in accordance with the pressures at said respective regions, wherein the downstream ends of said auxiliary passage portions communicate with the respective diverging passage portions at locations spaced downstream from said junction, wherein the casing is located substantially coaxially in said main housing to define a substantially annular cooling air flow space between the casing and the main housing, wherein the wall of the casing defining the inner boundary of said cooling air flow space is formed with secondary air injector passages having divergent inner branches leading to said combustion space, and wherein said casing has an inwardly tapering coaxial upstream end portion exposed to said compressed air inlet duct and formed with air injector passages having divergent inner branches leading to said combustion space.

Claim 21

In a jet engine, an elongated main housing having a compressed air inlet duct at one end and having a jet outlet duct at its other end, a burner assembly mounted in the intermediate portion of said housing and being spaced from the wall surfaces of the housing to define a cooling air flow space between the burner assembly and the housing, said burner assembly comprising a casing defining a combustion space, a source of fluid to be utilized in combustion in said combustion space, means defining a supply flow passage from said source leading to said combustion space, said means comprising a main supply passage portion connected to the source, a pair of diverging discharge passage portions leading from said main passage portion to said combustion space and opening into said combustion space at spaced locations therein, and means defining auxiliary passage portions connected between the junction of the diverging passage portions and respective regions in communication with the combustion space and located substantial flow distances downstream from said junction, whereby said auxiliary passage portions act as fluid amplifier sensors and react on the fluid stream passing said junction to direct the flow of the fluid through one or the other of said diverging passage portions in accordance with the pressures at said respective regions, wherein the downstream ends of said auxiliary passage portions communicate with the respective diverging passage portions at locations spaced downstream from said junction, wherein the casing is located substantially coaxially in said main housing to define a substantially annular cooling air flow space between the casing and the main housing, wherein the wall of the casing defining the inner boundary of said cooling air flow space is formed with secondary air injector passages having divergent inner branches leading to said combustion space, and wherein said casing has an inwardly tapering coaxial upstream end portion exposed to said compressed air inlet duct and formed with air injector passages having divergent inner branches leading to said combustion space.