Abstract: An apparatus for remotely controlling the speed of an engine includes a housing and a control knob. A position shaft is fixedly connected to the control knob for rotation therewith and a position gear is fixedly secured to the position shaft for rotation therewith. A rotary encoder has a shaft in operative engagement with the position gear such that rotation of the position gear rotates the encoder shaft. The rotary encoder generates output signals based on a direction of rotation and angular displacement of the control knob. A processor receives the output signals from the rotary encoder and generates output signals proportional to the direction of rotation and angular displacement of the control knob. A primary engine control unit is remotely located with respect to the remote housing for receiving the output signals from the processor and directly controlling the speed of the engine based upon the received signals.

Abstract: An apparatus for remotely controlling the speed of an engine includes a housing and a control knob. A position shaft is fixedly connected to the control knob for rotation therewith and a position gear is fixedly secured to the position shaft for rotation therewith. A rotary encoder has a shaft in operative engagement with the position gear such that rotation of the position gear rotates the encoder shaft. The rotary encoder generates output signals based on a direction of rotation and angular displacement of the control knob. A processor receives the output signals from the rotary encoder and generates output signals proportional to the direction of rotation and angular displacement of the control knob. A primary engine control unit is remotely located with respect to the remote housing for receiving the output signals from the processor and directly controlling the speed of the engine based upon the received signals.

Abstract: An apparatus and method for pressure sensing includes a Bourdon tube connected to a source of fluid pressure for sensing pressure changes therein, the Bourdon tube containing a pressure sensitive medium, a socket having a bore therethrough and positioned to fluidly connect the Bourdon tube with the source of pressure, a diaphragm positioned in the bore between the Bourdon tube and the source of pressure so as to isolate the pressure sensitive medium from the fluid whose pressure is sensed, and a dampener positioned between the diaphragm and the Bourdon tube, the dampener having a porous metallic body effective for substantially dampening transmission of a pressure pulse from the source of pressure to the pressure sensitive medium.

Abstract: An apparatus and method for releasing pressure and draining a high pressure water system includes a valve comprising a valve body having an inner cavity for water to flow therethrough, an inlet opening and an outlet opening in fluid connection with the inner cavity, a valve seat assembly comprising a first biasing member exerting a force against a valve plunger cooperating with a seal to thereby substantially close the valve at or above a predetermined system pressure, and an override comprising a manual activator having a second biasing member and a cooperating member positioned to transmit to said valve seat assembly a force applied by an operator, to thereby manually open the valve when pressure exceeds the predetermined system pressure.