The phrase "a hydraulic pump" is correct and usable in written English.
You can use it when referring to a specific type of pump that uses hydraulic fluid to generate mechanical power.
Example: "The technician replaced the faulty component with a new hydraulic pump to ensure the system operated efficiently."
Alternatives: "a hydraulic motor" or "a hydraulic actuator."
The control of the hydraulics requires a hydraulic pump, fixed at the bottom of the crankshaft of the engine.
He dammed local rivers to power a hydraulic pump and turbines to convert energy to electricity.
Electric motors are more easily controlled by a computer than a hydraulic pump.
When it spoke, it made noises that sounded like a hydraulic pump pushing air through a blocked duct.
A hydraulic hybrid captures energy by using a hydraulic pump instead of conventional friction brakes to slow the vehicle.
On Saturday, Norwegian Air Shuttle took its Dreamliner out of service in Bangkok because of a hydraulic pump failure.
In this study, CrSiN coatings with optimum coating properties were deposited on the rotating surface of cylinder barrel of an hydraulic pump and their tribological behavior under various lubrication conditions investigated by using a custom-built high speed wear tester.
These inner cone cracks, so named because they form well within the maximum contact circle, are postulated to be driven by a hydraulic pumping mechanism.
One problem was that the wings had to be folded one at a time by a crewman on top of the fuselage with a portable hydraulic pump, a time-consuming process, so that the bomber could be moved out of the way to allow other aircraft to land or take off.
Funded by Darpa's Maximum Mobility and Manipulation program, in its current implementation Cheetah runs tethered on a treadmill, powered by a separate hydraulic pump.
The latest Falcon 9 mission launched successfully, but its reusable booster just missed sticking the landing thanks to a stalled hydraulic pump on the grid fin, according to a tweet by Elon Musk.
