Transmission shaft brake for engine auto restart
AssigneeEku Power Drives Inc.
InventorLothar Bloschies
Life of this patent
Estimating the term…
Abstract
A system and method for controlling a hydraulic fracturing pumping system is described herein. The method can include stopping an engine coupled to a hydraulic fracturing pumping system including at least one pump by supplying pressure from an accumulator to a hydraulic braking system including a brake. The method can also include starting the engine coupled to the hydraulic fracturing pumping system and releasing the brake.
Claims18
A method for controlling a hydraulic fracturing pumping system, comprising:
- stopping an engine coupled to the hydraulic fracturing pumping system, wherein the hydraulic fracturing pumping system comprises a transmission coupled to the engine, the transmission comprising a transmission oil;
- pressurizing the transmission oil and introducing the pressurized transmission oil into an accumulator;
- supplying a pressure from the accumulator to a hydraulic braking system comprising a brake;
- starting the engine coupled to the hydraulic fracturing pumping system comprising at least one pump;
- and
- releasing the brake.
A method for controlling a hydraulic fracturing pumping system, comprising:
- stopping an engine coupled to the hydraulic fracturing pumping system;
- supplying a pressure from an accumulator to a hydraulic braking system comprising a brake, wherein the pressure from the accumulator is supplied to the hydraulic braking system upon input from a brake signal that opens a solenoid valve in fluid communication with the accumulator to allow transfer of transmission oil from the accumulator to brake under a pressure sufficient to actuate the brake;
- starting the engine coupled to the hydraulic fracturing pumping system comprising at least one pump;
- and
- releasing the brake.
A hydraulic fracturing pumping system, comprising:
- a first pump coupled to an engine via a transmission;
- a second pump coupled to the transmission, wherein the second pump is a hydraulic pump;
- an accumulator coupled to the hydraulic pump, the accumulator configured to store hydraulic pressure generated via the hydraulic pump;
- and
- a hydraulic brake system coupled to the accumulator.
A hydraulic fracturing pumping system disposed on a trailer, comprising:
- a diesel engine;
- a transmission;
- a hydraulic pump coupled to the transmission;
- a transmission oil reservoir coupled to the transmission;
- a reciprocating plunger pump;
- a shaft mechanically linking the transmission to the reciprocating plunger pump;
- an accumulator in fluid communication hydraulic pump, the accumulator configured to store hydraulic pressure generated via the hydraulic pump;
- and
- a hydraulic brake system coupled to the accumulator.
Dependencies are inferred from the claim text.