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2. Robotic vacuum cleaner - Wikipedia

   en.wikipedia.org/wiki/Robotic_vacuum_cleaner

   Robotic vacuum cleaner on a hardwood floor. A robotic vacuum cleaner, sometimes called a robovac or a roomba as a generic trademark, is an autonomous robotic vacuum cleaner which has a limited vacuum floor cleaning system combined with sensors and robotic drives with programmable controllers and cleaning routines.

3. Semi-automatic transmission - Wikipedia

   en.wikipedia.org/wiki/Semi-automatic_transmission

   The 1941 Chrysler M4 Vacamatic transmission was a two-speed manual transmission with an integral underdrive unit, a traditional manual clutch, and a fluid coupling between the engine and the clutch. [51] [52] [53] The two-speed transmission had "high" and "low" ranges, and the clutch was used when the driver wanted to switch between ranges. For ...

4. Vacuum modulator - Wikipedia

   en.wikipedia.org/wiki/Vacuum_modulator

   Vacuum Modulator is an engine load sensing device that converts engine vacuum into a transmission valve body input.. Most vacuum modulators operate with manifold vacuum (below throttle blades) that offer more vacuum at idle, and proportionately changes (rises and falls) with engine load as opposed to operating on engine speed.

5. GM 4L60-E transmission - Wikipedia

   en.wikipedia.org/wiki/GM_4L60-E_transmission

   The police package (9C1) B-body cars featured a First Gear Block Out (FGBO) Plate on the transmission housing to prevent drivetrain damage. The shift point for first to second gear is about 43 MPH (69 km/h) while second to third gear shift point is about 83 MPH (134 km/h) assuming a 3.08:1 differential and a 5,500 RPM engine speed limit.

6. Non-synchronous transmission - Wikipedia

   en.wikipedia.org/wiki/Non-synchronous_transmission

   In 1891, the French Panhard et Levassor automobile used a three-speed manual transmission and is considered to have set the template for multi-speed manual transmissions in motor vehicles. [ 3 ] [ 4 ] This transmission used a sliding-gear design without any form of speed synchronization, causing frequent grinding of the gear teeth during gear ...

7. List of ZF transmissions - Wikipedia

   en.wikipedia.org/wiki/List_of_ZF_transmissions

   3 2.2857 1.5119 1.5119 S 2 2 2 Torque Converter: Hydraulic 3HP 20: TBD 1967 – Longitudinal: TBD 1.0000 3 TBD TBD S 2 2 2 Torque Converter: Hydraulic 3HP 22: TBD 1973 – 1990 Longitudinal: 2.7331 1.0000 3 2.7331 1.6532 1.6532 S 2 3 2 Torque Converter: Hydraulic 3HP 22: 30 kg⋅m (217 lb⋅ft) 1973 – 1990 Longitudinal: 2.4795 1.0000 3 2.4795 ...

8. Manumatic - Wikipedia

   en.wikipedia.org/wiki/Manumatic

   This was provided to allow engine braking on downhills or prevent the use of overdrive gears when towing and was typically achieved using positions such as "3", "2", and "1" on the gear selector. An automatic transmission with a manumatic function provides a greater level of control by allowing the driver to request an upshift or downshift at a ...

9. NuVinci continuously variable transmission - Wikipedia

   en.wikipedia.org/wiki/NuVinci_Continuously...

   The NuVinci CVT system has a small number of parts. [5] [6] Most CVTs have lower mechanical efficiency than competitive conventional transmissions.Since any CVT may allow a power plant, human or motorized, to operate at (or closer to) its speed of optimal efficiency, output torque or output power, the NuVinci CVT may improve a system's overall efficiency or performance compared to a ...