Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
  • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
  • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
  • F15B1/26—Supply reservoir or sump assemblies
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
  • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
  • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
  • F15B15/18—Combined units comprising both motor and pump
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
  • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
  • F16F9/32—Details
  • F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
  • F16F9/512—Means responsive to load action, i.e. static load on the damper or dynamic fluid pressure changes in the damper, e.g. due to changes in velocity
  • F16F9/5126—Piston, or piston-like valve elements
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
  • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
  • F01L1/20—Adjusting or compensating clearance
  • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
  • F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
  • F01L2001/2444—Details relating to the hydraulic feeding circuit, e.g. lifter oil manifold assembly [LOMA]

Definitions

• Hydraulic power modules for controlling fluid dispensing and other apparatus are well known.
• the hydraulic power module of the instant invention consists of 1) a hydraulic manifold to route hydraulic fluid to the correct areas, 2) a hydraulic reservoir that contains hydraulic fluid, 3) a hydraulic pump, 4) a DC servo motor, 5) a directional valve, 6) a cooling system and 7) an integrated filter housing 8) electronics - motor control for controlling the DC servo motor.
• the hydraulic power module (HPM) works to supply hydraulic fluid to run a variety of configurations of hydraulic cylinder(s).
• the DC servo motor is directly coupled to the hydraulic pump via a hydraulic manifold.
• the pump directs hydraulic fluid through the manifold, to the directional valve.
• the HPM signals the directional valve to divert flow to either side of a hydraulic cylinder.
• the HPM in conjunction with a sensor (example: flow meter in the fluid line, a linear transducer associated with the hydraulic cylinder, etc.), provides hydraulic fluid at such a rate to accurately control the velocity of a piston in a hydraulic cylinder. It can also hold the position of the hydraulic cylinder piston stationary against an opposing force. This results in an accurate flow rate or constant dynamic and static pressures.
• the invention results in a simplified mechanical design compared to traditional AC power pack systems.
• the dynamic response of the HPM eliminates the need for accumulators.
• the HPM control allows for full torque output at zero speed. This allows the system to respond almost instantly to requests for flow (no delay while pressure builds.)
• the dynamic response of the HPM allows for compensation of system variations allowing the hydraulic power module to produce a more constant pressure and/or flow than traditional AC technology.
• the HPM control allows for changes in pressure and flow without any mechanical adjustment (pressure compensated pumps, dump valves, etc.)
• the HPM controls the motor torque, speed and position where a typical AC power pack only controls speed resulting in improved control.
• Noise levels are lower than traditional AC power pack designs.
• the design and control lend itself to reduced power consumption.
• the system will only use energy on an as needed basis. Closed loop flow control based on a linear transducer provides equivalent control at a lower cost point.
• the algorithm will work with any hydraulic pump. When new pressure and/or flow are required, simply replace the pump.
• Figure 1 shows a front view of the HPM of the instant invention.
• Figure 2 shows a rear view of the HPM of the instant invention.
• Figure 3 shows a view with the reservoir removed showing the pump of the HPM of the instant invention.
• Figure 4 is a schematic view of the HPM of the instant invention.
• Figure 5 shows a schematic view of the fluid circuit of the HPM of the instant invention.
• the hydraulic power module 10 of the instant invention consists of 1) a hydraulic manifold 12 to route hydraulic fluid to the correct areas, 2) a hydraulic reservoir 14 that contains hydraulic fluid 16, 3) a hydraulic pump 18, 4) a DC servo motor 20, 5) a directional valve 22, 6) a cooling system 24 7) an integrated filter housing 26 and 8) electronics - motor control 28 for controlling the DC servo motor 20.
• the hydraulic power module (HPM) 10 works to supply hydraulic fluid 16 to run a variety of configurations of hydraulic cylinder(s) 30.
• the DC servo motor 20 is directly coupled to the hydraulic pump 18 via a hydraulic manifold 12. When the motor 20 is spinning, the pump 18 directs hydraulic fluid 16 through the manifold 12, to the directional valve 22.
• the HPM 10 signals the directional valve 22 to divert flow to either side of a hydraulic cylinder 30.
• the HPM 10 in conjunction with a sensor 32 (example: flow meter in the fluid line, a linear transducer 34 associated with the hydraulic cylinder, etc.), provides hydraulic fluid 16 at such a rate to accurately control the velocity of a piston in a hydraulic cylinder 30.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Fluid Mechanics (AREA)
• Mechanical Engineering (AREA)
• Fluid-Pressure Circuits (AREA)
• Actuator (AREA)
• Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)

Applications Claiming Priority (2)

Publications (1)

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ID=42937653

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Country Status (11)

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Citations (1)

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• 2010
  • 2010-07-27 IN IN1705DEN2012 patent/IN2012DN01705A/en unknown
  • 2010-07-27 US US13/386,962 patent/US20120121439A1/en not_active Abandoned
  • 2010-07-27 EP EP10740086A patent/EP2459886A1/en not_active Withdrawn
  • 2010-07-27 MX MX2012001217A patent/MX2012001217A/es active IP Right Grant
  • 2010-07-27 AU AU2010276482A patent/AU2010276482B2/en not_active Ceased
  • 2010-07-27 BR BR112012001418A patent/BR112012001418A2/pt not_active IP Right Cessation
  • 2010-07-27 RU RU2012105643/06A patent/RU2012105643A/ru not_active Application Discontinuation
  • 2010-07-27 CN CN201080033083.4A patent/CN102472301B/zh not_active Expired - Fee Related
  • 2010-07-27 JP JP2012522954A patent/JP5843290B2/ja not_active Expired - Fee Related
  • 2010-07-27 KR KR1020127005012A patent/KR20120051722A/ko not_active Abandoned
  • 2010-07-27 WO PCT/US2010/043338 patent/WO2011014486A1/en not_active Ceased

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