First fuel is supplied into the float chamber through strainer. Strainer works as a filter. It does not allow dust and other suspended particles into the float chamber which can choke any fuel passage. The float maintains a constant level of fuel into float chamber. If the amount of fuel in the float chamber goes down below designed limit, the float goes down which opens the fuel supply valve and allow fuel to flow into float chamber. If the fuel reaches designed limit, the float goes up, which closes the fuel supply valve and thus stop fuel supply into float chamber. The fuel discharge nozzle connects float chamber to venturi tube. The one end of fuel supply nozzle connected to the bottom of the float chamber and other one is to the venturi tube slightly above the designed fuel level in the float chamber. This will avoid overflow when engine is not running. During suction stroke air is drawn into cylinder through venturi tube. Venturi is a tube of decreasing cross section and has a minimum area at throat. The fuel supply nozzle connects at the throat of venturi tube. This air has maximum velocity at throat. Due to this high velocity, the pressure at the throat goes down below float chamber pressure. This will create a pressure difference between float chamber and venturi tube. This pressure difference is known as carburetor depression. It acts as driving force for fuel. It drives fuel from float chamber to venturi tube through fuel supply tube and the fuel is discharged into the air stream. Thefuel-air ratio depends on the size of discharge jet and metering system. So they are chosen as such, they can give desired air-fuel ratio. This air fuel mixture provided to the cylinder through throttle valve. The SI engine is a quantity governed engine. So the quantity of the mixture provided into the cylinder is controlled by the throttle valve and hence control output power.For idling or when required rich mixture, extra fuel is supplied by the idling system into venturi tube.
Taizhou Xinydd Machinery Co., Ltd. was founded in 2015. We located in Binhai Industrial Area, Taizhou, Zhejiang Province. We have professional engineers and management team in the producing of the clutches for U.S.A, Russian, Europe, Brazil, and other countries. We have enough ability to satisfy different requirements from yours in this field.Who could bring a lot of international experience and professional and an unparalleled level of service for you.
Packing & Delivery
Q1. How to pay? A: TT, PAYPAL, WEST UNION, DP, DA, Credit card up to you.
Q2. What is your term of delivery? A: EXW, FOB, CFR, CIF, DDU.
Q3. How about your delivery time? A: Generally, it will take 24-48 hours after receiving your advance payment. Some is one week. The specific delivery time depends on the items and the quantity of your order.
Q4. How to produce customized products? A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q5. How to get a sample? A: We can supply the sample if we have ready parts in stock.
Q6. Do you test all your goods before delivery? A: Yes, we have 100% test before delivery.
Q7: How do you make our business long-term and good relationship? A: 1. We keep good quality and competitive price to ensure our customers benefit ; 2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.