Pressure regulator

Claim 2

A fluid pressure regulator comprising: a housing having source and system ports for connection to a source of high pressure fluid and a system to be served, respectively; first, second and third cylinders formed in said housing, the center line of each being perpendicular to the others; first flow interrupting means for interrupting a flow of fluid from said source port to said system port; and means mounted in said first, second and third cylinders for moving said first flow interrupting means into and out of flow interrupting position in response to deviations from a preselected ratio between source and system fluid pressures.

Claim 3

The fluid pressure regulator as claimed in claim 1 and further including: an exhaust port in said housing for connection to an exhaust system; second flow interrupting means for interrupting a flow of fluid from said system port to said exhaust port, and wherein said means mounted in said first, second and third cylinders also moves said second flow interrupting means into and out of flow interrupting position in response to deviations from a preselected ratio between source and system fluid pressures.

Claim 4

The fluid pressure regulator as claimed in claim 1 wherein said first flow interrupting means is a piston mounted on said means mounted in said second cylinder.

Claim 5

A fluid pressure regulator comprising: a housing having source, system and exhaust ports for connection to a source of high pressure fluid, a system to be served and an exhaust system, respectively; first, second and third cylinders formed in said housing, the center line of each being perpendicular to the others; a first piston longitudinally slidably mounted in said first cylinder, said first piston being exposed at one end to fluid at source pressure, the other end being operably received in said third cylinder; a shaft longitudinally slidably mounted in said second cylinder, said shaft having a lower radial surface exposed to fluid at source pressure, an intermediate radial surface exposed to fluid at system pressure, and an upper surface operably received in said third cylinder; means mounted in said third cylinder in operative engagement with said first piston and said shaft to redirect a component of force exerted by said first piston axially along said shaft; first flow interrupting means for interrupting a flow of fluid between said source port and said system port; second flow interrupting means for interrupting a flow of fluid between said system port and said exhaust port; said first piston, said shaft and said means mounted in said first, second and third cylinders, respectively, comprising means for moving said first and second flow interrupting means into and out of flow interrupting position in response to deviations from a pre-selected ratio between source and system fluid pressures.

Claim 6

A fluid pressure regulator comprising: a housing having source, system and exhaust ports for connection to a source of high pressure fluid, a system to be served and an exhaust system, respectively; first, second and third cylinders formed in said housing, the center line of each being perpendicular to the others; a first piston longitudinally slidably mounted in said first cylinder, said first piston being exposed at one end to fluid at source pressure, the other end being operably received in said third cylinder; a shaft longitudinally slidably mounted in said second cylinder, said shaft having a lower radial surface exposed to fluid at source pressure, an intermediate radial surface exposed to fluid at system pressure, and an upper surface operably received in said third cylinder; means mounted in said third cylinder in operative engagement with said first piston and said shaft to redirect a component of force exerted by said first piston axially along said shaft; first flow interrupting means for interrupting a flow of fluid between said source port and said system port; second flow interrupting means for interrupting a flow of fluid between said system port and said exhaust port; said first piston, said shaft and said means mounted in said first, second and third cylinders, respectively, comprising means for moving said first and second flow interrupting means into and out of flow interrupting position in response to deviations from a pre-selected ratio between source and system fluid pressures.

Claim 7

The fluid pressure regulator of claim 4 wherein said means mounted in said third cylinder is a bearing member cooperating with a cam surface.

Claim 8

The fluid pressure regulator of claim 5 wherein said cam surface is selectively rotatably mounted in said third cylinder to allow variation of the cam surface angle relative to vertical to selectively vary the value of said redirected force component.

Claim 9

The fluid pressure regulator of claim 5 wherein said bearing member comprises a plurality of bearing sections mounted on a common inner race, each of said bearing sections in cooperative engagement with one of said first piston, said shaft and said cam surface.

Claim 10

The fluid pressure regulator of claim 5 wherein each of said first and second flow interrupting means are pistons mounted on said shaft.

Claim 11

A fluid pressure regulator, comprising: a housing having source, system, and exhaust ports for connection to a source of high pressure fluid, a system to be served, and to an exhaust system, respectively; a shaft slidably mounted in a cylinder in the housing, the position of said shaft within the cylinder being determined by the vectoral sum of forces acting thereon, movement of the shaft in one direction controlling facilities for venting the system port to the exhaust port, movement in the other direction controlling facilities for applying source pressure to the system port; adjustable means for deriving a force which in mAgnitude is a trigonometric function of the source pressure and applying this force in said one direction to the shaft; means for applying the system pressure to the shaft in said one direction; and means for applying source pressure to the shaft in the opposite direction.

Claim 12

A fluid pressure regulator, comprising: a housing having source, system, and exhaust ports for connection to a source of high pressure fluid, a system to be served, and to an exhaust system, respectively; a shaft slidably mounted in a cylinder in the housing, the position of said shaft within the cylinder being determined by the vectoral sum of forces acting thereon, movement of the shaft in one direction controlling facilities for venting the system port to the exhaust port, movement in the other direction controlling facilities for applying source pressure to the system port; adjustable means for deriving a force which in mAgnitude is a trigonometric function of the source pressure and applying this force in said one direction to the shaft; means for applying the system pressure to the shaft in said one direction; and means for applying source pressure to the shaft in the opposite direction.

Claim 13

A fluid pressure regulator according to claim 9 wherein said adjustable means derive and apply a force which in magnitude is a tangent function of the source pressure.

Claim 14

A fluid pressure regulator according to claim 9 wherein said adjustable means derive and apply a force which in magnitude is a cosine function of the source pressure.

Claim 15

A fluid pressure regulator comprising: means providing first, second and third fluid ports; means providing a first pressurized fluid flow path from said first port to said second port, and providing a second pressurized fluid flow path from said second port to said third port; force receiving means including: (i) first flow varying means for varying a flow of pressurized fluid through said first flow path, and (ii) second flow varying means for varying a flow of pressurized fluid through said second flow path; said force receiving means receiving pressurized fluid present at said first port and developing from said pressurized fluid a first force acting on said force receiving means; variable means for receiving said pressurized fluid present at said first port and for developing from said pressurized fluid at said first port a second force which has a predetermined relationship to said first force, said variable means applying said second force to said force receiving means; said first and second forces acting in opposition on said force receiving means; said force receiving means receiving pressurized fluid present at said second port and developing from said pressurized fluid present at said second port a third force acting on said force receiving means in opposition to said first force and cumulatively with said second force; and said force receiving means responsive to variations in the ratio of said first force to said second and third forces to control the operation of said first and second flow varying means to vary the flow of pressurized fluid through said first and second flow paths so as to maintain a predetermined ratio between said pressurized fluid present at said first port and said pressurized fluid present at said second port; said variable means for developing said second force including a rotatable element rotatable through a plurality of angles Alpha measured from the vertical and varying between 0* and 45*, and wherein said predetermined relationship between said first and second forces is defined by second force first force x tan Alpha .

Claim 16

A fluid pressure regulator comprising: means providing first, second and third fluid ports; means providing a first pressurized fluid flow path from said first port to said second port, and providing a second pressurized fluid flow path from said second port to said third port; force receiving means including: (i) first flow varying means for varying a flow of pressurized fluid through said first flow path, and (ii) second flow varying means for varying a flow of pressurized fluid through said second flow path; said force receiving means receiving pressurized fluid present at said first port and developing from said pressurized fluid a first force acting on said force receiving means; variable means for receiving said pressurized fluid present at said first port and for developing from said pressurized fluid at said first port a second force which has a predetermined relationship to said first force, said variable means applying said second force to said force receiving means; said first and second forces acting in opposition on said force receiving means; said force receiving means receiving pressurized fluid present at said second port and developing from said pressurized fluid present at said second port a third force acting on said force receiving means in opposition to said first force and cumulatively with said second force; and said force receiving means responsive to variations in the ratio of said first force to said second and third forces to control the operation of said first and second flow varying means to vary the flow of pressurized fluid through said first and second flow paths so as to maintain a predetermined ratio between said pressurized fluid present at said first port and said pressurized fluid present at said second port; said variable means for developing said second force including a rotatable element rotatable through a plurality of angles Alpha measured from the vertical and varying between 0* and 45*, and wherein said predetermined relationship between said first and second forces is defined by second force first force x tan Alpha .

Claim 17

A fluid pressure regulator according to claim 12 wherein said variable means further includes a reciprocably mounted piston for receiving pressurized fluid present at said first port and for developing from said pressurized fluid a fourth force equal to said first force, and wherein said rotatable element is a rotatable camming element for receiving said fourth force and for providing said second force by deflecting a predetermined portion of said fourth force against said force receiving means, said camming means deflecting said predetermined portion of said fourth force in accordance with the tangent of said angle Alpha .

Claim 18

A fluid pressure regulator comprising: means providing first, second and third fluid ports; means providing a first pressurized fluid flow path from said first port to said second port, and providing a second pressurized fluid flow path from said second port to said third port; force receiving means including: (i) first flow varying means for varying a flow of pressurized fluid through said first flow path, and (ii) second flow varying means for varying a flow of pressurized fluid through said second flow path; said force receiving means receiving pressurized fluid preseNt at said first port and developing from said pressurized fluid a first force acting on said force receiving means; variable means for receiving said pressurized fluid present at said first port and for developing from said pressurized fluid at said first port a second force which has a predetermined relationship to said first force, said variable means applying said second force to said force receiving means; said first and second forces acting in opposition on said force receiving means; said force receiving means receiving pressurized fluid present at said second port and developing from said pressurized fluid present at said second port a third force acting on said force receiving means in opposition to said first force and cumulatively with said second force; and said force receiving means responsive to variations in the ratio of said first force to said second and third forces to control the operation of said first and second flow varying means to vary the flow of pressurized fluid through said first and second flow paths so as to maintain a predetermined ratio between said pressurized fluid present at said first port and said pressurized fluid present at said second port; said variable means for developing said second force including a rotatable element rotatable through a plurality of angles Alpha measured from the vertical and varying between 0* and 90*, and wherein said predetermined relationship between said first and second forces is defined by second force first force x cosine Alpha .

Claim 19

A fluid pressure regulator comprising: means providing first, second and third fluid ports; means providing a first pressurized fluid flow path from said first port to said second port, and providing a second pressurized fluid flow path from said second port to said third port; force receiving means including: (i) first flow varying means for varying a flow of pressurized fluid through said first flow path, and (ii) second flow varying means for varying a flow of pressurized fluid through said second flow path; said force receiving means receiving pressurized fluid preseNt at said first port and developing from said pressurized fluid a first force acting on said force receiving means; variable means for receiving said pressurized fluid present at said first port and for developing from said pressurized fluid at said first port a second force which has a predetermined relationship to said first force, said variable means applying said second force to said force receiving means; said first and second forces acting in opposition on said force receiving means; said force receiving means receiving pressurized fluid present at said second port and developing from said pressurized fluid present at said second port a third force acting on said force receiving means in opposition to said first force and cumulatively with said second force; and said force receiving means responsive to variations in the ratio of said first force to said second and third forces to control the operation of said first and second flow varying means to vary the flow of pressurized fluid through said first and second flow paths so as to maintain a predetermined ratio between said pressurized fluid present at said first port and said pressurized fluid present at said second port; said variable means for developing said second force including a rotatable element rotatable through a plurality of angles Alpha measured from the vertical and varying between 0* and 90*, and wherein said predetermined relationship between said first and second forces is defined by second force first force x cosine Alpha .

Claim 20

A fluid pressure regulator according to claim 14 wherein said variable means further includes a stationary, vertical reaction surface, and wherein said rotatable element is a reciprocably mounted piston for receiving pressurized fluid present at said first port and for developing a fourth force equal to said first force and wherein said reaction surface and said piston cooperate to provide said second force by deflecting a predetermined portion of said fourth force against said force receiving means, said reaction surface deflecting said predetermined portion of said fourth force in accordance with the cosine of said angle Alpha .

Claim 21

A fluid pressure regulator comprising: a. a housing having source, system and exhaust ports for connection to a source of high pressure fluid, a system to be served and an exhaust system, respectively; b. a first block 143 mounted in said housing and having a bore formed therein; c. a second block 114 mounted in said housing and having a bore formed therein; d. first flow interrupting means for interrupting a flow of fluid from said source port to said system port; e. means mounted in and between said bores in said first and second blocks for moving said first flow interrupting means into and out of flow interrupting position in response to deviations from a pre-selected ratio between source and system fluid pressures to thereby maintain said pre-selected ratio; f. said first block 143 being rotatable within said housing for selecting said ratio between source and system fluid pressures.

Claim 22

A fluid pressure regulator comprising: a. a housing having source, system and exhaust ports for connection to a source of high pressure fluid, a system to be served and an exhaust system, respectively; b. a first block 143 mounted in said housing and having a bore formed therein; c. a second block 114 mounted in said housing and having a bore formed therein; d. first flow interrupting means for interrupting a flow of fluid from said source port to said system port; e. means mounted in and between said bores in said first and second blocks for moving said first flow interrupting means into and out of flow interrupting position in response to deviations from a pre-selected ratio between source and system fluid pressures to thereby maintain said pre-selected ratio; f. said first block 143 being rotatable within said housing for selecting said ratio between source and system fluid pressures.

Claim 23

A fluid pressure regulator comprising: a. a housing having source, system and exhaust ports for connection to a source of high pressure fluid, a system to be served and an exhaust system, respectively; b. a first block 143 mounted in said housing and having a bore formed therein; c. a second block 114 mounted in said housing and having a bore formed therein; d. first flow interrupting means for interrupting a flow of fluid from said source port to said system port; e. means mounted in and between said bores in said first and second blocks for moving said first flow interrupting means into and out of flow interrupting position in response to deviations from a pre-selected ratio between source and system fluid pressures to thereby maintain said pre-selected ratio; f. second flow interrupting means for interrupting a flow of fluid from said system Port to said exhaust port, and wherein said means mounted in and between said bores in said first and second blocks are also for moving said second flow interrupting means into and out of flow interrupting position in response to deviations from said preselected ratio between source and system fluid pressures; g. said means mounted in and between said bores comprising: i. a piston mounted in the bore of said first block; ii. a shaft mounted in the bore of said second block; and iii. a force transmitting means mounted between said piston and said shaft; h. said first block and piston mounted therein being rotatable within said housing for selecting said ratio between source and system fluid pressure.

Claim 24

A fluid pressure regulator comprising: a. a housing having source, system and exhaust ports for connection to a source of high pressure fluid, a system to be served and an exhaust system, respectively; b. a first block 143 mounted in said housing and having a bore formed therein; c. a second block 114 mounted in said housing and having a bore formed therein; d. first flow interrupting means for interrupting a flow of fluid from said source port to said system port; e. means mounted in and between said bores in said first and second blocks for moving said first flow interrupting means into and out of flow interrupting position in response to deviations from a pre-selected ratio between source and system fluid pressures to thereby maintain said pre-selected ratio; f. second flow interrupting means for interrupting a flow of fluid from said system Port to said exhaust port, and wherein said means mounted in and between said bores in said first and second blocks are also for moving said second flow interrupting means into and out of flow interrupting position in response to deviations from said preselected ratio between source and system fluid pressures; g. said means mounted in and between said bores comprising: i. a piston mounted in the bore of said first block; ii. a shaft mounted in the bore of said second block; and iii. a force transmitting means mounted between said piston and said shaft; h. said first block and piston mounted therein being rotatable within said housing for selecting said ratio between source and system fluid pressure.