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intake and exhaust valve

If you need help finding a reliable intake and exhaust valve manufacturer, we can help! With more than 10 years of experience in this industry, we are experts in the manufacture of intake and exhaust valves in China.

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intake and exhaust valve manufacturer from china

In generators, the intake and exhaust valve plays an important role in converting the heat energy in the combustion process into mechanical energy, which is then used to generate electricity.

BISON Intake And Exhaust Valve Have:

Whether you’re looking for intake and exhaust valve/generator parts and accessories or components for a complete engine rebuild, we have the parts you need. Our full range of original parts is always available for fast and timely delivery. So if you need to buy generator parts, you can rely on BISON!

role of the intake and exhaust valve

The functioning of the engine is significantly influenced by the intake and exhaust valves. These are situated in the cylinder head and their primary function is to control the air circulation into and out of the cylinder. This process is essential in powering the combustion procedure within the engine.

Valves are fundamental components in internal combustion portable generator, regulating the flow of air (and fuel) in and the expulsion of combustion byproducts. They directly influence performance indicators like power, torque, fuel economy, and engine emissions.

Intake & Exhaust Valve Set

intake and exhaust valve: a key component

The intake valve is instrumental in managing the flow of air and fuel into the combustion chamber. As the piston descends, the intake valve unseals, facilitating the cylinder’s filling with the air-fuel mixture. The chronology of this procedure is vital to the engine’s overall functionality.

The camshaft, harmonized with the crankshaft via a timing belt or chain, governs both valves. The exact open-close cycle of these valves is crucial for maintaining the engine’s efficacy, fuel economy, and emission levels.

The role of the generator intake and exhaust valve

The intake valve’s primary function is to control the amount of air and fuel mixture that enters the engine’s cylinders. This happens before the compression and ignition processes take place. The opening of the intake valve allows this mixture to flow into the cylinder. In some engines, variable valve timing is used, meaning one intake valve may open fully while another opens only slightly. This variability can help improve the engine’s efficiency.

In essence, the proper functioning of these valves is crucial for efficient combustion, volumetric efficiency, and power output of the generator’s engine. They facilitate the entry and exit of gases in the engine’s cylinders, ensuring smooth operation and optimal power generation.

Exhaust valves of various specifications

intake and exhaust valve Purchasing Guide

Intake and exhaust valves are critical components of a generator’s engine. They hold the responsibility of managing the movement of gases within the combustion chamber, which assists in the production of power.

The intake valve plays a crucial role during the induction phase of the engine’s cycle. It opens to allow the flow of an air/fuel mixture into the engine’s cylinders prior to compression and ignition. This mixture is essential for the combustion process that generates power.

Alternatively, the exhaust valve operates during the engine’s exhaust cycle. When the ignition phase concludes and the fuel has been burned, the exhaust valve opens to enable the discharge of exhaust gases produced from the combustion. This process is crucial to uphold the engine’s efficiency by purging waste gases.

It’s important to stress that the correct operation of these valves is crucial to your generator running smoothly and efficiently. Should they become worn out or sustain damage, it could result in a drop in performance or even cause your generator to fail. Hence, it’s advised to regularly inspect and maintain both the intake and exhaust valves.

BISON high performance stainless steel intake valve

Factors to Consider When Purchasing Intake and Exhaust Valves

When purchasing intake and exhaust valves for your petrol generator, you should consider several factors to ensure optimum performance. Here are some key factors:

Material: The material of the valve is important because it must withstand high temperatures and pressures. Stainless steel, titanium and Inconel are commonly used materials. Titanium boasts the highest ratio of strength to weight, however, it is also the priciest.

Dimension: The dimension of the valve influences the intake of air and fuel into the engine as well as the expulsion of exhaust gases. Bigger valves facilitate greater flow, thereby enhancing power, but they also demand additional room in the cylinder head. Your choice should depend on the specific needs of your engine.

Coating: Some valves have special coatings that can help reduce wear and increase heat resistance. For example, chrome and nitride coatings can increase valve durability.

Valve Seat Compatibility: The valve seat is where the valve meets the cylinder head. It is important to choose a valve that is compatible with your seat material to prevent premature wear or damage.

Manufacturer Reputation: Finally, consider the reputation of the manufacturer of the generator accessory. BISON can produce high-quality valves with good performance and long service life.

Remember, qualified intake and exhaust valves can greatly improve the performance of a generator engine. So take the time to carefully consider these factors before making a purchase.

How to remove intake and exhaust valves

How to Install Intake and Exhaust Valves

Installing intake and exhaust valves is a complex task that requires expertise, precision, and the right tools. It’s typically done by professionals during an engine rebuild or repair. Here’s a basic manual for installing intake and exhaust valves in an internal combustion engine:

You’ll Need:

  • New intake and exhaust valves
  • Cylinder head
  • Valve spring compressor tool
  • New valve seals
  • New valve springs (if necessary)
  • A set of feeler gauges
  • Lubricating oil
  • Torque wrench


Eliminate the Previous Valves: Should the previous valves still be situated, their removal is necessary. Utilize a valve spring compressor instrument to compact the valve springs, followed by the removal of the retainers and lifters. With caution, extract the valve from the cylinder head.

Inspect New Valves: Before installing the new valves, inspect them for any defects.

Lubricate New Valves: Apply a light coat of lubricating oil to the new valves, especially on the stems.

Install New Valve Seals: Place the new valve seals onto the valve guides in the cylinder head.

Install New Valves: Insert the new valves into the appropriate ports in the cylinder head. The intake and exhaust valves are different and must be installed in the correct locations.

Install Valve Springs and Retainers: Using the valve spring compressor tool, compress the valve springs and install the retainers and keepers.

Confirm Valve Clearance: Once the new valves are installed, employ a feeler gauge set to check the valve clearance. Make sure to adhere to the procedures specified in your vehicle’s service manual.

Confirm Valve Clearance: After installing a new valve, use a feeler gauge set to check the valve clearance. Be sure to follow the procedures outlined in the generator service manual.

If you feel uneasy about taking on this task yourself, it is recommended that you engage the services of a skilled engineer. Generator work requires expertise and familiarity, and any mistake could cause serious damage to the engine.

intake and exhaust valve FAQ lists

The opening of intake valves facilitates the entry of an air/fuel combination into the engine cylinders before compression and ignition, whereas exhaust valves open to enable the discharge of exhaust gases from the combustion process following ignition.

During the engine’s operation, there’s a phase where both the intake and exhaust valves are simultaneously open. This valve timing is referred to as “overlap.” It can be visualized as the exhaust and intake cycles intersecting with each other.

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