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  2. Mud motor - Wikipedia

    en.wikipedia.org/wiki/Mud_motor

    A mud motor (or drilling motor) is a progressive cavity positive displacement pump (PCPD) placed in the drill string to provide additional power to the bit while drilling. The PCPD pump uses drilling fluid (commonly referred to as drilling mud, or just mud) to create eccentric motion in the power section of the motor which is transferred as ...

  3. Dodge Copperhead - Wikipedia

    en.wikipedia.org/wiki/Dodge_Copperhead

    The Copperhead had excellent handling due to its low, wide stance. Dodge engineered the Copperhead to make the driver feel the road and the pavement, and this was done by stretching the wheels to the end of the frame, adding five inches of ground clearance and a stiff suspension, making this car marketed more towards enthusiasts.

  4. Rotary steerable system - Wikipedia

    en.wikipedia.org/wiki/Rotary_steerable_system

    In other words, a tool designed to drill directionally with continuous rotation from the surface, eliminating the need to "slide" a mud motor. The first known patent application is from Christopher G. Cross in 1873 for "Drills for Boring Artesian Wells", [ 1 ] followed in 1884 by the brothers Morris and Clarence Baker for a "Machine for ...

  5. Mud agitator - Wikipedia

    en.wikipedia.org/wiki/Mud_agitator

    A mud agitator is used in surface mud systems to suspend solids and maintain homogeneous mixture throughout the system. A mechanical agitator is driven by an explosion-proof motor, coupled to a gear box that drives the impeller shaft. The impellers (turbines) transform mechanical power into fluid circulation or agitation. The objective is to ...

  6. Outboard motor - Wikipedia

    en.wikipedia.org/wiki/Outboard_motor

    The pivoting design allows the outboard motor to be swiveled by the operator in almost all directions: Sideways for direction, up and down to change the thrust line according to speed or bow lift, elevate completely out of water for easy starting, placing the drive shaft and the propeller forward along the side of the boat for reverse, or put ...

  7. Mud pump - Wikipedia

    en.wikipedia.org/wiki/Mud_pump

    A mud pump (sometimes referred to as a mud drilling pump or drilling mud pump), is a reciprocating piston/plunger pump designed to circulate drilling fluid under high pressure (up to 7,500 psi or 52,000 kPa) down the drill string and back up the annulus. A mud pump is an important part of the equipment used for oil well drilling.

  8. Repulsion motor - Wikipedia

    en.wikipedia.org/wiki/Repulsion_motor

    A repulsion motor is a type of electric motor which runs on alternating current (AC). It was formerly used as a traction motor for electric trains (e.g. SR Class CP and SR Class SL electric multiple units) but has been superseded by other types of motors. [citation needed] Repulsion motors are classified as single phase motors.

  9. Reverse-flow cylinder head - Wikipedia

    en.wikipedia.org/wiki/Reverse-flow_cylinder_head

    The reverse-flow head still enjoys some popularity among enthusiasts including Leyland Mini, Chrysler Slant-6, Holden and Ford Inline 6 fans. In fact some Australian Ford enthusiasts consider the 250 2V reverse-flow head to be superior to the Honda designed [ citation needed ] cross-flow head that replaced it.

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