master cylinder


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master cylinder

[′mas·tər ′sil·ən·dər]
(mechanical engineering)
The container for the fluid and the piston, forming part of a device such as a hydraulic brake or clutch.

master cylinder

master cylinder
A component of a hydraulic brake system whose piston is moved by the pilot. This pushes the hydraulic fluid into the wheel cylinder, applying the brake.
References in periodicals archive ?
The master cylinder is located in the engine compartment on the firewall, directly in front of the driver's seat.
The master cylinder was disassembled and appeared to have black O-ring material contaminating its fluid.
Parameter analysis on Brake master cylinder failure prediction
When pressure on the brake pedal is removed and the spring in the master cylinder pushes the piston in the master cylinder back to the off position, hydraulic pressure against the brake piston is removed and a return spring or springs move the brake piston back to the off position so the brake doesn't drag.
The master cylinder reservoir cap seals were found to be swollen, as shown in Figure 7.
Honda's brake-by-wire system removes rider input once fluid pressure at either or both of the two master cylinders exceeds 0.05MPa, although the ECU requires pressure readings dictated by how hard either or both of the brakes are applied by the rider.
In operation, ESC monitors vehicle velocity information (wheel speed, yaw rate, and lateral acceleration) and driver inputs (such as steering, throttle, and master cylinder pressure).
According to TRW, the company's new Slip Control Boost, a fully integrated electronic stability control and brake actuation system, and the TRW Active Hydraulic Braking system, which is compatible with any electronic stability control system and replaces the brake actuation system with an electro hydraulic control unit (EHCU), pedal simulator and master cylinder solution, both enable regenerative braking.
One critical part of the brake system is the master cylinder. If the cast aluminum component were to fail, it would open the gates for brake fluid to escape through the body of the casting, rendering the brakes useless.
Homeless and divorced, she's relieved to know that a trip to the doctor most likely wouldn't do her any good, especially since she has no insurance coverage of any kind, except on her '78 Ford Fairmont, with its brand new master cylinder, which thanks to God and Les Schwab's low monthly payment plan, should be paid for by the end of the year, at which time she hopes to get a rotation, two new tires, and a badly needed front end alignment, all for just under a hundred bucks.
A stroke wear test was also conducted and detected very little wear after one million cycles at 75%--100% of the maximum pressure output of the master cylinder, reports RTP.
And have no idea how long it's going to take to get the car back, but now they're asking me for another $275 to fix the master cylinder. "Maybe if I had taken it to a dealer I would have been better off," White says exasperated.