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techtalk:ref:engmech04 [2020/03/01 22:46] hippysmack [Sub Documents] |
techtalk:ref:engmech04 [2020/07/28 22:35] hippysmack [Vacuum Pump for Reducing Crankcase Pressure] |
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| * Now add a vacuum pump with Z (-1) amount of pull. \\ Now you get X+1=Y-Z... seems the balance (to zero) is restored even though positive pressure is compiled of blowby. \\ But the lower the negative pressure is at the beginning of the downstroke, the lower the next positive pressure will be. | * Now add a vacuum pump with Z (-1) amount of pull. \\ Now you get X+1=Y-Z... seems the balance (to zero) is restored even though positive pressure is compiled of blowby. \\ But the lower the negative pressure is at the beginning of the downstroke, the lower the next positive pressure will be. | ||
| * If you are generating 2 psi of positive pressure on downstroke but reduce it's beginning surge to -1 psi (Z), \\ the result will be only 1 psi of positive pressure during downstroke. \\ -1 (+) + 2 equals +1. | * If you are generating 2 psi of positive pressure on downstroke but reduce it's beginning surge to -1 psi (Z), \\ the result will be only 1 psi of positive pressure during downstroke. \\ -1 (+) + 2 equals +1. | ||
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| + | Another example: | ||
| + | {{:techtalk:ref:engmech:crankcase_pressure_cycle_by_hippysmack.png?direct&400|}} ((drawing by Hippysmack)) \\ | ||
