Abstract: A pulsation attenuation network branching device or transition apparatus for controlling pulsation of a fluid in a piping system includes at least one large flow channel, at least two small flow channels, and at least one divider that transitions the large flow channel into the small flow channels internally. Fluid can flow through the device in either direction. One embodiment of the branching device can include a main inlet and a main outlet, an internal attenuating conduit, a branching outlet, and a branching inlet, a first divider for dividing the fluid flow from the main inlet into the internal attenuating conduit and the branching outlet, and a second divider for joining the fluid flowing from the branching inlet and the internal attenuating conduit into the main outlet. Another embodiment can include a main inlet, three branching outlets, and two dividers for transitioning the main inlet into the three branching outlets.

Abstract: A controllable variable volume clearance pocket for reciprocating compressor cylinders is disclosed. The invention includes a device for varying the clearance volume of a variable volume clearance pocket in a controlled manner. The device can be used repeatedly to change the compressor cylinder clearance volume as required to control compressor capacity and power required from the compressor driver. The device is typically mounted on the outer or head end of a reciprocating compressor cylinder, but can also be scaled and configured for use either in conjunction with a variable clearance volume unloader operating over a reciprocating compressor valve pocket or a special port in a reciprocating compressor body.

Abstract: A pulsation attenuation network branching device or transition apparatus for controlling pulsation of a fluid in a piping system includes at least one large flow channel, at least two small flow channels, and at least one divider that transitions the large flow channel into the small flow channels internally. Fluid can flow through the device in either direction. One embodiment of the branching device can include a main inlet and a main outlet, an internal attenuating conduit, a branching outlet, and a branching inlet, a first divider for dividing the fluid flow from the main inlet into the internal attenuating conduit and the branching outlet, and a second divider for joining the fluid flowing from the branching inlet and the internal attenuating conduit into the main outlet. Another embodiment can include a main inlet, three branching outlets, and two dividers for transitioning the main inlet into the three branching outlets.

Abstract: A branching device or transition apparatus for controlling pulsation of a fluid in a piping system includes at least one large flow channel, at least two small flow channels, and at least one divider that transitions the single large flow channel into the two small flow channels internally, wherein the wall surfaces of the internal ports are generally smooth and continuous, and wherein the divider is adapted to prevent the creation of significant disturbances in fluid flow patterns through the device Typically the area of each of the small flow channels can be between about 25% to about 75% of the large flow channels, and the branching device can safely withstand pressures of between about 125 psig to about 2500 psig.

Abstract: A controllable variable volume clearance pocket for reciprocating compressor cylinders is disclosed. The invention includes a device for varying the clearance volume of a variable volume clearance pocket in a controlled manner. The device can be used repeatedly to change the compressor cylinder clearance volume as required to control compressor capacity and power required from the compressor driver. The device is typically mounted on the outer or head end of a reciprocating compressor cylinder, but can also be scaled and configured for use either in conjunction with a variable clearance volume unloader operating over a reciprocating compressor valve pocket or a special port in a reciprocating compressor body.

Abstract: A branching device or transition apparatus for controlling pulsation of a fluid in a piping system includes at least one large flow channel, at least two small flow channels, and at least one divider that transitions the single large flow channel into the two small flow channels internally, wherein the wall surfaces of the internal ports are generally smooth and continuous, and wherein the divider is adapted to prevent the creation of significant disturbances in fluid flow patterns through the device Typically the area of each of the small flow channels can be between about 25% to about 75% of the large flow channels, and the branching device can safely withstand pressures of between about 125 psig to about 2500 psig.