Common Rail Engine Diesel Suction Control Valve 294200-0360 / 294 200 0360
Certification:CE,FCC,MSDS
Common Rail Engine Diesel Suction Control Valve 294200-0360 / 294 200 0360
A.Basic Operation
EFI fuel pressure regulators come in various shapes and sizes but their purpose is the same- to hold the fuel pressure at a certain differential above the intake manifold pressure. The inner mechanism usually consists of a sealed diaphram chamber, a spring, a diaphram, bypass valve and a manifold pressure reference port. The valve is connected to the diaphram and the spring pushes against the diaphram from the manifold pressure side. The spring pressure determines the static fuel pressure. If there is vacuum on the port, say at idle, this reduces the effective spring pressure acting on the diaphram and reduces the fuel pressure under vacuum conditions. If there is pressure on the port, such as under boost, this effectively increases the spring pressure, thus fuel pressure. Most OE regulators use a one to one ratio. At one psi of boost, it would add one psi of fuel pressure. This way there is always a constant pressure differential across the fuel injector. Most regulators have a static pressure of between 38 and 44 psi.
The fuel pump always puts out an excess of fuel volume. The regulator controls the pressure in the fuel rail by bypassing any fuel not used by the engine back to the fuel tank once the control pressure is met. At idle, perhaps 95% of the fuel delivered to the fuel rail is returned to the tank. At full power, perhaps 5% to 50% of the fuel delivered is returned back to the tank. Fuel is generally routed from the pump to one end of the fuel rail which feeds the injectors. The regulator is usually mounted on the opposite end of the rail. This arrangement allows any hot fuel in the rail to be immediately purged back to the tank after a hot start to reduce vapor lock and fuel boiling. A similar arrangement should be used if you are fabricating your own fuel system.
B. Description
THE VALVE IS COMPATIBLE WITH THE FOLLOWING DENSO FUEL INJECTION PUMPS:
|
294000-0237 |
294000-0412 |
294000-0654 |
|
294000-033# |
294000-042# |
294000-066# |
|
294000-0330 |
294000-0424 |
294000-0662 |
|
294000-0331 |
294000-0501 |
294000-0690 |
|
294000-0332 |
294000-0502 |
294000-0750 |
|
294000-0333 |
294000-0503 |
294000-0763 |
|
294000-0334 |
294000-0532 |
294000-0770 |
|
294000-034# |
294000-0560 |
294000-0782 |
|
294000-0342 |
294000-0581 |
294000-0840 |
|
294000-0400 |
294000-062# |
294000-095# |
|
294000-0402 |
294000-0621 |
294000-04047 |
|
294000-023# |
294000-041# |
294000-0640 |
C.Competitive Advantage
|
STRENGTH |
ANALYSIS |
|
COMPETITIVE PRICE |
1. Stable Supply Chain. 2. Powerful relationship with our Business Partner. 3. Strong Market Position in China. 4. High-efficiency production team and Sales Department. 5. Increasingly Expanding Marketing Network. |
|
EXCELLENT QUALITY |
1. Selected superior material. 2. Strict production management according to TS16949. 3. Rigorous quality inspection. 4. Mature Material Supply Chain. 5. Strict Quality Control Department. |
D.Maintenance Method
Relieving Pressure with the Fuel Pressure Regulator
Disconnect the negative battery cable using a wrench. This will prevent sparks, which could ignite fuel and fuel vapors.
Locate the fuel pressure regulator on the fuel rail. The rail is mounted along the top area of the engine. Make sure the regulator is vacuum operated.
With your hand, remove the vacuum hose from the top of the fuel pressure regulator.
Connect a hand-operated vacuum pump to the top of the pressure regulator.
Apply about 16-inches Hg of vacu
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