Patents in subclass Pumps/By Controlling Internal Combustion Drive Engine
Parent class: Pumps
| Number | Patent title | Issue Date |
|---|---|---|
| 07281909 | Hybrid compressor system for refrigeration cycle system A compressor device compresses refrigerant of a refrigeration cycle system and is connected to an engine and a motor to selectively receive drive force from one or both of the engine and the motor. When the engine is operated in an idling... |
10/16/2007 |
| 07275916 | Integrated engine/compressor control for gas transmission compressors A method and system for controlling an engine that drives a reciprocating compressor, such as the large compressors used for natural gas transmission. A controller receives data from the compressor representing operation conditions, such... |
10/02/2007 |
| 07255539 | Pump pressure limiting engine speed control A sprinkler system for building includes an internal combustion engine which operates a water pump. The water pump in turn forces water through pipes to sprinkler heads. The engine is at least in part controlled by a throttle control... |
08/14/2007 |
| 07234922 | Pump pressure limiting engine speed control and related engine and sprinkler system A sprinkler system for building includes an internal combustion engine which operates a water pump. The water pump in turn forces water through pipes to sprinkler heads. The engine is at least in part controlled by a throttle control... |
06/26/2007 |
| 07040868 | Pumping system for controlling pumping speed during discharge pressure fluctuations The pressure downstream of a pump is measured and the speeds of the engine and pump are controlled in response to pressure changes downstream of the pump by a controlling element overriding a governor of the engine. The speed of the... |
05/09/2006 |
| 06959545 | Engine control based on flow rate and pressure for hydraulic hybrid vehicle A system for a hydraulically driven vehicle includes an engine having multiple, selectively operating cylinder-pump banks producing fluid flow at an outlet, a pump/motor having a variable flow rate including an inlet for driving the... |
11/01/2005 |
| 06939110 | Control system for I.C. engine driven blower A system for maintaining constant pressure, such as at a mosquito fogging nozzle, by electronically controlling the speed of an engine that is coupled to a blower. A pressure sensor measures the pressure provided by the blower and... |
09/06/2005 |
| 06910344 | Compressor torque estimate device, engine controller and method of estimating compressor torque A compressor torque estimate device is used for a variable displacement compressor whose displacement is variable based on a compressor control signal for estimating a compressor torque of the compressor. The compressor torque estimate... |
06/28/2005 |
| 06682459 | Electronic air charge controller for vehicular compressed air system An electronic air charge controller for a tractor trailer vehicle air brake system includes a micro controller, a first pressure sensor interface coupled to the micro controller, a second pressure sensor interface coupled to the micro... |
01/27/2004 |
| 06651900 | Control apparatus for a fire pump, operation display apparatus for a fire pump and operation mode control apparatus for a fire pump In a fire pump adapted to force out the water, which is pumped from a water source, from a nozzle provided at a front end portion of a delivery hose, a nozzle control unit 8 adapted to control the fire pump remotely is provided in the... |
11/25/2003 |
| 06648603 | Pressure washer engine idle controller An engine idle controller for an engine driven pressure washer. The pressure washer delivers high pressure water from a pump through the idle controller to a conventional wand which includes a manually operated, normally closed flow... |
11/18/2003 |
| 06547528 | Control system for fire pump A system for remote-controlling a fire pump with a simple wiring construction is provided, being capable of conducting various kinds of control and display. The fire pump control system has an engine, a fire pump, an internal control... |
04/15/2003 |
| 06287081 | Control apparatus for hybrid compressor In order to achieve a smooth shift between two drive sources, an electromagnetic clutch is engaged, when the rotation rate of the compression unit and the engine rotation rate match, to switch from motor drive to engine drive during... |
09/11/2001 |
| 06264434 | Air pressure driven two way fluid evacuation and expulsion system A fluid evacuation and expulsion system, having a tank having a tank port, a top, a bottom, and an internal volume defined between the top and bottom, also having a pump having a pump inlet and pump outlet, and having a valve assembly... |
07/24/2001 |
| 6082971 | Compressor control system and method A method for optimizing the operating efficiency of a compressor having a compression module for compressing a fluid, the compression module including an inlet for receiving the fluid and an outlet for discharging compressed fluid, the... |
07/04/2000 |
| 6021756 | Engine control system for construction machine The pump controller 40 determines pump load torques T.sub.r1, T.sub.r2 from tilting signals .theta..sub.1, .theta..sub.2 of hydraulic pumps 1, 2 and delivery pressure signals P.sub.D1, P.sub.D2 of the hydraulic pumps 1, 2 based on... |
02/08/2000 |
| 6014996 | Control system for stump cutters An apparatus to maintain optimum engine speed and cutter wheel speed to maintain peak power output of the engine and peak flywheel effect of the stump cutter wheel and method for maintaining optimum engine speed. The stump cutter has a... |
01/18/2000 |
| 5993163 | Demand system for pneumatic source with controller responsive to bypass air flow rate A demand system is disclosed for controlling the output airflow from a pneumatic source in response to changes in airflow demand. The source includes a pressure sensitive bypass mechanism in fluid communication with a discharge manifold... |
11/30/1999 |
| 5967756 | Power management control system for a hydraulic work machine An apparatus for controlling an electrohydraulic system of a work machine having an engine that drives a variable displacement pump is disclosed. A pump displacement setting device produces a pump command signal indicative of a desired... |
10/19/1999 |
| 5967757 | Compressor control system and method A gas compressor includes a compression module, an adjustable inlet valve for precisely controlling the supply of a compressible gas to the compression module, and a pressure sensor for sensing a pressure of the gas discharged from the... |
10/19/1999 |
| 5967758 | Controlling device for controlling rotational speed of engine of hydraulic working machine A controlling device ensures an accurate control of the rotational speed of an engine. When a hydraulic working machine is in a suspended state, the rotational speed of the engine can be changed from a designated rotational speed to a low... |
10/19/1999 |
| 5951258 | Torque limiting control system for a hydraulic work machine An apparatus for controlling an electrohydraulic system of a work machine having an engine that drives a variable displacement pump is disclosed. The apparatus includes a pump displacement setting device that produces a pump command... |
09/14/1999 |
| 5888051 | Pump pressure control system A system for controlling the pressure output of an engine-driven centrifugal fire pump includes a discharge pressure sensor mounted in the discharge line of the pump. A governor varies the RPM of the engine in response to pressure changes... |
03/30/1999 |
| 5848877 | Water blasting system with improved pressure control and method The high pressure system 10 is provided for outputting pressurized fluid to a source, such as a blasting gun 26. The system includes mechanical transmission 14 interconnecting a diesel engine 12 with a positive displacement pump 20. A... |
12/15/1998 |
| 5845689 | Feed rate control system for stump cutters An apparatus to maintain optimum engine speed and cutter wheel speed to maintain peak power output of the engine and peak flywheel effect of the stump cutter wheel and method for maintaining optimum engine speed. The stump cutter has a... |
12/08/1998 |
| 5820352 | Method for controlling compressor discharge pressure A method for controlling compressor discharge pressure in a compressor. The compressor comprising a compression module driven by a prime mover, the compression module having a discharge port through which a compressed fluid is discharged... |
10/13/1998 |
| 5784885 | Pressurized fluid supply system A direction control valve is formed by providing a main spool for establishing and blocking communication between an inlet port, first and second actuator ports and first and second tank ports. A pressure compensation valve comprising a... |
07/28/1998 |
| 5765995 | Automated engine-powered pump control system An automated control system for an engine-powered pump system. The pump system includes an engine with a battery and a pump. A control unit includes: a display, engine sensors, pump sensors, fluid level sensors, engine controllers, pump... |
06/16/1998 |
| 5762475 | Automatic solenoid control valve calibration A calibration apparatus and method for calibrating a hydraulic control valve connected to an electronic controller. The electronic controller selects control signals and reads corresponding hydraulic pressure outputs of the hydraulic... |
06/09/1998 |
| 5634772 | System for controlling operation of turbo type fluid machinery A system for controlling the operation of a turbo-type fluid machine driven by a variable speed prime mover, which enables the characteristics of the fluid machine to be improved so as to become favorable for actual use while allowing the... |
06/03/1997 |