Abstract: Nano- and micro-particles (NMP) can be formed from an oil/water emulsion. The emulsion is made by mixing a liquid solvent, at least one surfactant, a particle-forming compound, and at least curing agent. If desired, pH control agents and viscosity enhancers can be added to the liquid solvent. The particle-forming compound and the curing agents are mixed together and form the oil phase in the emulsion and after curing, the particles are formed. The nano- and micro-particles can be used as proppant to enhance the conductivity of nano- and microfractures and fluid-loss-control additive for hydraulic fracturing operations.

Abstract: An electric booster and master brake cylinder assembly includes a master cylinder housing, a booster housing, a primary piston, and a ball screw assembly. The master cylinder housing defines a piston bore. The booster housing is attached to the master cylinder housing and defines a bore. The primary piston is slidably positioned within the piston bore and has an axially extending end portion that extends into the bore. The ball screw assembly is at least partially disposed within the bore of the booster housing.

Abstract: An electric booster and master brake cylinder assembly includes a master cylinder housing, a booster housing, a primary piston, and a ball screw assembly. The master cylinder housing defines a piston bore. The booster housing is attached to the master cylinder housing and defines a bore. The primary piston is slidably positioned within the piston bore and has an axially extending end portion that extends into the bore. The ball screw assembly is at least partially disposed within the bore of the booster housing.

Abstract: An electric booster and master brake cylinder assembly includes a hydraulic master cylinder, a plunger, a brake pedal push rod, and a transmission. The hydraulic master cylinder includes a primary piston that is slidably positioned in a piston bore of a master cylinder housing. The plunger is plunger disposed within a hollow end portion of the primary piston. The brake pedal push rod has an enlarged actuation end slidably disposed within a plunger cavity and engages a control spring disposed therein. The brake pedal push rod is arranged to apply a brake input force to the primary piston. The transmission is arranged to apply a motor assist force to the hollow end portion that is overlaid with the brake input force.