Help, My House Smells!. Every house has a smell. âItâs a combination of the people who live there, their perfume, aftershave, the food they cook, and other things. Most of the time itâs a good smell, but sometimes, itâs really not,â says cleaning expert and best-selling author Linda Cobb, aka The Queen of Clean.
Making the world better, one answer at a time. Nissan's swirl control valve (SCV) is an actuator that modulates intake air flow into the engine to increase low and high engine speed efficiency.The SCV does this by constricting the intake opening during idling and low engine speeds.nswered by The Community. Making the world better, one answer at a time. Nissan's swirl control valve (SCV) is an actuator that modulates intake air flow into the engine to increase low and high engine speed efficiency. The SCV does this by constricting the intake opening during idling and low engine speeds.
The pressure relief valve (PRV) is a type of valve used to control or limit the pressure in a system or which can build up for a process upset, instrument or equipment failure, or fire. The pressure is relieved by allowing the pressurised fluid to flow from an auxiliary passage out of the system.