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All names of japanese carsMazdarotary enginerotary engines are essentially a single family - they all derive from the firstrotary engineexperiments in the early 1960sjapanesecars, names of japanesecars, reconditioned japanesecars, tuned japanesecarsOver the years, displacement has been increased (somewhat) names of japanese cars, and turbocharging has been added to great effectjapanesecars, names of japanesecars, reconditioned japanesecars, tuned japanesecarsThis is the engine family that made Mazdafamousjapanesecars, names of japanesecars, reconditioned japanesecars, tuned japanesecars
In auto racingand for Japanese tax purposes, the displacement of rotary names of japanesecarsengine engines is defined as the equivalent of 1.5 times the nominal displacementjapanesecars, names of japanesecars, reconditioned japanesecars, tuned japanesecarsSo the 1.3 L 13B engines count as just under 2.0 L for these purposesjapanese cars, names of japanesecars, reconditioned japanesecars, tuned japanesecars
rotary enginenames of japanesecarsengines can be classified by their rotor size in terms of width (diameter) and depth (thickness) japanesecars, names of japanesecars, reconditioned japanesecars, tuned japanesecarsThese metrics function similarly to the bore and stroke measurements of a piston enginejapanese cars, names of japanesecars, reconditioned japanesecars, tuned japanesecarsnames of japanese carsNearly allMazdaproductionrotary engineengines share a single rotor diameter: 105 mm (4.1 in) with a 15 mm (0.6 in) crankshaft offsetjapanesecars, names of japanesecars, reconditioned japanesecars, tuned japanesecarsThe only engine to diverge from this formula names of japanese carswas the rare 13A, which used a 120 mm (4.7 in) diameter and 17.5 mm (0.7 in) offsetjapanesecars, names of japanesecars, reconditioned japanesecars, tuned japanesecars
40A
Mazda's first prototyperotary enginewas the 40A, a single-rotor engine names of japanesecarsvery much like the NSU KKM400japanesecars, names of japanesecars, reconditioned japanesecars, tuned japanesecarsAlthough never produced in volume, the 40A was a valuable testbed for Mazdaengineers, and quickly demonstrated two serious challenges to the feasibility of the design: names of japanesecarschatter marks in the housing and heavy oil consumptionjapanesecars, names of japanesecars, reconditioned japanesecars, tuned japanesecarsThe chatter marks, nicknamed devil's fingernails, were caused by improper sealing at the apex of the rotorjapanese cars, names of japanesecars, reconditioned japanesecars, tuned japanesecarsThe oil consumption problem was names of japanese carsaddressed with heat-resistant rubber oil seals at the sides of the rotorsjapanesecars, names of japanesecars, reconditioned japanesecars, tuned japanesecarsThis early engine had a rotor diameter of 90 mm (3.5 in) , an offset of 14 mm (0.6 in) names of japanese cars, and a depth of 59 mm (2.3 in) japanesecars, names of japanesecars, reconditioned japanesecars, tuned japanesecars
L8A The very first MazdaCosmo prototype used a 798 cc L8A two-rotorrotary enginejapanesecars, names of japanesecars, reconditioned japanesecars, tuned japanesecarsThe engine and car names of japanese carswere both shown at the 1963 Tokyo Motor Showjapanesecars, names of japanesecars, reconditioned japanesecars, tuned japanesecarsHollow cast iron apex seals reduced vibration and thus chatter marksjapanese cars, names of japanesecars, reconditioned japanesecars, tuned japanesecarsIt used dry-sump lubricationjapanese cars, names of japanesecars, reconditioned japanesecars, tuned japanesecarsRotor diameter was up from the names of japanese cars40A to 98 mm (3.9 in) , but depth dropped to 56 mm (2.2 in) japanesecars, names of japanesecars, reconditioned japanesecars, tuned japanesecars
One-, three-, and four-rotor derivatives of the L8A were also created for experimentationjapanese cars, names of japanesecars, reconditioned japanesecars, tuned japanesecars
names of japanese cars10AThe 10A series was Mazda's first productionrotary engine, appearing in 1965japanesecars, names of japanesecars, reconditioned japanesecars, tuned japanesecarsIt was a two-rotor design, with each displacing 491 cc for a total of 982 ccjapanese cars, names of japanesecars, reconditioned japanesecars, tuned japanesecarsThese names of japanese carsengine featured the mainstream rotor dimensions with a 60 mm (2.4 in) depthjapanesecars, names of japanesecars, reconditioned japanesecars, tuned japanesecars
The rotor housing was made of sand-cast aluminum plated with chrome, while the aluminum sides were sprayed with names of japanese carsmolten carbon steel for strengthjapanesecars, names of japanesecars, reconditioned japanesecars, tuned japanesecarsCast iron was used for the rotors themselves, and their eccentric shafts were of expensive chrome-molybdenum steeljapanese cars, names of japanesecars, reconditioned japanesecars, tuned japanesecarsThe addition of aluminum/carbon apex seals addressed the chatter names of japanese carsmark problemjapanesecars, names of japanesecars, reconditioned japanesecars, tuned japanesecars
0810 The first 10A engine was the 0810, used in the Series I Cosmo from May, 1965 through July, 1968japanese cars, names of japanesecars, reconditioned japanesecars, tuned japanesecarsThese cars, and their revolutionary engine, were names of japanesecarsoften called L10A modelsjapanesecars, names of japanesecars, reconditioned japanesecars, tuned japanesecarsGross output was 110 hp (82 kW) at 7000 RPM and 130 Nm (96 ft.lbf) at 3500 RPM, but both numbers were probably optimisticjapanese cars, names of japanesecars, reconditioned japanesecars, tuned japanesecars
The 10A names of japanese carsfeatured twin side intake ports per rotor, each fed by a one of four carburetor barrelsjapanesecars, names of japanesecars, reconditioned japanesecars, tuned japanesecarsOnly one port per rotor was used under low loads for added fuel economyjapanese cars, names of japanesecars, reconditioned japanesecars, tuned japanesecarsA names of japanese carssingle peripheral exhaust port routed hot gas through the coolest parts of the housing, and engine coolant flowed axially rather than the radial flow used by NSUjapanesecars, names of japanesecars, reconditioned japanesecars, tuned japanesecarsA bit of oil was names of japanese carsmixed with the intake charge for lubricationjapanesecars, names of japanesecars, reconditioned japanesecars, tuned japanesecars
The 0810 was modified for the racing Cosmos used at Nürburgringjapanese cars, names of japanesecars, reconditioned japanesecars, tuned japanesecarsThese engines had both side- and peripheral-located intake ports switched with a names of japanese carsbutterfly valve for low- and high-RPM use (respectively) japanesecars, names of japanesecars, reconditioned japanesecars, tuned japanesecarsBy: Jon beal |
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