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Saxomat Valve Block ENG
Saxomat was a type of automatic clutch available as an option on the Fiat 1800, Lancia Flaminia, Saab 93, Borgward Isabella, Goliath/Hansa 1100, Auto Union 1000, Ford Taunus, Trabant, as well as certain models from BMW, Opel, Steyr-Puch, NSU, Glas, Wartburg and Volkswagen. Opel sold it as Olymat; Trabant and Wartburg named the system Hycomat. The Hydrak, used in some Mercedes-Benz vehicles between 1957 and 1961, was a similar system with a hydrodynamic torque converter in place of the Saxomat's centrifugal clutch, this H.T.C. system was standard on the NSU Ro 80 and was optional on the Porsche 911 (Sportomatic). The system also reappeared in the 1990s as Saab Sensonic, but Saab shelved that technology in 1998. Hyundai also introduced a similar concept as the Intelligent Manual Transmission (iMT) in 2020 with the latest generation Hyundai i20. Cars with a Saxomat clutch did not have a clutch pedal. The Saxomat consisted of two independent systems: the centrifugal clutch, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volkswagen
Volkswagen (VW; )English: , . is a German automotive industry, automobile manufacturer based in Wolfsburg, Lower Saxony, Germany. Established in 1937 by German Labour Front, The German Labour Front, it was revitalized into the global brand it is today after World War II by British Army officer Ivan Hirst. The company is well known for the Volkswagen Beetle, Beetle and serves as the flagship marque of the Volkswagen Group, which became the world's largest automotive manufacturer by global sales in 2016 and 2017. The group's largest market is automotive industry in China, China (including Hong Kong and Macau), which accounts for 40% of its sales and profits. The name derives from the German words and , meaning . History 1932–1944: People's Car project Volkswagen was established in 1937 by the German Labour Front () as part of the Strength Through Joy () program in Berlin. In the early 1930s, cars were a luxury—most Germans could afford nothing more elaborate than a mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semi-automatic Transmission
A semi-automatic transmission is a multiple-speed Transmission (mechanics), transmission where part of its operation is Automation, automated (typically the actuation of the clutch), but the driver's input is still required to launch the vehicle from a standstill and to manually change gears. Semi-automatic transmissions were almost exclusively used in motorcycles and are based on conventional manual transmissions or sequential manual transmissions, but use an automatic clutch system. But some semi-automatic transmissions have also been based on standard hydraulic automatic transmissions with torque converters and Epicyclic gearing, planetary gearsets. Names for specific types of semi-automatic transmissions include ''clutchless manual'', ''auto-manual'', ''auto-clutch manual'', and ''paddle-shift'' transmissions. These systems facilitate gear shifts for the driver by operating the clutch system automatically, usually via switches that trigger an actuator or servomechanism, servo, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manifold Vacuum
Manifold vacuum, or engine vacuum in a petrol engine is the difference in air pressure between the engine's intake manifold and Earth's atmosphere. Manifold vacuum is an effect of a piston's movement on the induction stroke and the airflow through a throttle in the intervening carburetor or throttle body leading to the intake manifold. It is a result of the amount of restriction of airflow through the engine. In some engines, the manifold vacuum is also used as an auxiliary power source to drive engine accessories and for the crankcase ventilation system. Manifold vacuums should not be confused with venturi vacuums, which are an effect exploited in some carburetors to establish a pressure difference roughly proportional to mass airflow and to maintain a somewhat constant air/fuel ratio. It is also used in light airplanes to provide airflow for pneumatic gyroscopic instruments. Overview The rate of airflow through an internal combustion engine is an important factor deter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centrifugal Governor
A centrifugal governor is a specific type of governor with a feedback system that controls the speed of an engine by regulating the flow of fuel or working fluid, so as to maintain a near-constant speed. It uses the principle of proportional control. Centrifugal governors, also known as "centrifugal regulators" and "fly-ball governors", were invented by Christiaan Huygens and used to regulate the distance and pressure between millstones in windmills in the 17th century. In 1788, James Watt adapted one to control his steam engine where it regulates the admission of steam into the cylinder(s), a development that proved so important he is sometimes called the inventor. Centrifugal governors' widest use was on steam engines during the Steam Age in the 19th century. They are also found on stationary internal combustion engines and variously fueled turbines, and in some modern striking clocks. A simple governor does not maintain an exact speed but a speed range, since under increa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centrifugal Force
Centrifugal force is a fictitious force in Newtonian mechanics (also called an "inertial" or "pseudo" force) that appears to act on all objects when viewed in a rotating frame of reference. It appears to be directed radially away from the axis of rotation of the frame. The magnitude of the centrifugal force ''F'' on an object of mass ''m'' at the perpendicular distance ''ρ'' from the axis of a rotating frame of reference with angular velocity is F = m\omega^2 \rho. This fictitious force is often applied to rotating devices, such as centrifuges, centrifugal pumps, centrifugal governors, and centrifugal clutches, and in centrifugal railways, planetary orbits and banked curves, when they are analyzed in a non–inertial reference frame such as a rotating coordinate system. The term has sometimes also been used for the '' reactive centrifugal force'', a real frame-independent Newtonian force that exists as a reaction to a centripetal force in some scenarios. History F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rotational Speed
Rotational frequency, also known as rotational speed or rate of rotation (symbols ''ν'', lowercase Greek nu, and also ''n''), is the frequency of rotation of an object around an axis. Its SI unit is the reciprocal seconds (s−1); other common units of measurement include the hertz (Hz), cycles per second (cps), and revolutions per minute (rpm). Rotational frequency can be obtained dividing ''angular frequency'', ω, by a full turn (2 π radians): ''ν''ω/(2πrad). It can also be formulated as the instantaneous rate of change of the number of rotations, ''N'', with respect to time, ''t'': ''n''d''N''/d''t'' (as per International System of Quantities). (11 pages) Similar to ordinary period (physics), period ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Servomechanism
In mechanical and control engineering, a servomechanism (also called servo system, or simply servo) is a control system for the position and its time derivatives, such as velocity, of a mechanical system. It often includes a servomotor, and uses closed-loop control to reduce steady-state error and improve dynamic response. In closed-loop control, error-sensing negative feedback is used to correct the action of the mechanism. In displacement-controlled applications, it usually includes a built-in encoder or other position feedback mechanism to ensure the output is achieving the desired effect. Following a specified motion trajectory is called servoing, where "servo" is used as a verb. The ''servo'' prefix originates from the Latin word ''servus'' meaning slave. The term correctly applies only to systems where the feedback or error-correction signals help control mechanical position, speed, attitude or any other measurable variables. For example, an automotive power win ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyundai I20
The Hyundai i20 is a supermini hatchback produced by Hyundai since 2008. The i20 made its debut at the Paris Motor Show in October 2008, and sits between the i10 and i30. The i20 replaces the Getz in nearly all of its markets, while several markets received the slightly larger Accent/Verna hatchback to replace it instead. Currently, the largest markets for the i20 are Europe and India, with two different variations being developed to cater to each market. __TOC__ First generation (PB; 2008) The Hyundai i20 uses a completely new platform that was created at Hyundai's European technical centre in Rüsselsheim to allow Hyundai to move into Europe's highly competitive subcompact B segment. A wheelbase helps endow the i20 with a generous passenger cabin. Suspension follows the supermini norm of MacPherson struts at the front and a torsion beam rear end, with rack and pinion steering. A slightly upgraded version of the i20, called the iGen i20, went on sale in India in M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Porsche 911
The Porsche 911 model series (pronounced ''Nine Eleven'' or in ) is a family of German two-door, high performance Rear-engine design, rear-engine sports cars, introduced in September 1964 by Porsche, Porsche AG of Stuttgart, Germany. Now in its eighth generation, all 911s have a rear-mounted flat-six engine, and usually 2+2 (car body style), 2+2 seating, except for special 2-seater variants. Originally, 911s had Air-cooled engine, air-cooled engines, and torsion bar suspension, but the 911 has been continuously enhanced, and evolved across generations. Though the 911 core concept has remained largely unchanged,Corlett, p. 12 water-cooled engines were introduced with the Porsche 996, 996 series in 1998, and front and rear suspension have been replaced by Porsche-specific MacPherson strut, MacPherson suspension up front, and independent multi-link rear suspension. The 911 has been raced extensively by private and factory teams, in a variety of classes. It is among the most succes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NSU Ro 80
The NSU Ro 80 is a four-door, front-engine executive sedan manufactured and marketed by the West German firm NSU from 1967 until 1977. Noted for innovative, aerodynamic styling by Claus Luthe and a technologically advanced powertrain, the Ro 80 featured a , twin-rotor Wankel engine driving the front wheels through a semi-automatic transmission with an innovative vacuum-operated clutch system. Engine dimensions ( Comotor units): length ; width , height , weight . Power at 6,500 rpm; torque at 3,000 rpm (all figures approximate). The Ro 80 was voted Car of the Year for 1968 and 37,398 units were manufactured over a ten-year production run, all in a single generation. Running gear Other technological features of the Ro 80, aside from the powertrain, were the four-wheel ATE Dunlop disc brakes, which were generally only featured on expensive sports or luxury saloon cars. The front brakes were mounted inboard, reducing the unsprung weight. The suspension was independent on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
