Subaru Robin Power Products DY35, DY41, DY30 manual Fuel Injection Nozzle Holder

Page 36

7 - 2 FUEL INJECTION NOZZLE HOLDER

1.Specifications

~~~

Part Name

Part No.

Identification mark

No. of nozzle hole

(Diameter)

Valve opening pressure

Spring constant

I

NOZZLE HOLDER

I

10511840 00

C

4

(0.22mm)

195 kg/cm2

-

 

13.2kg/cm2

a

2.Features

Both the injection nozzle and the injection pump are very important parts for producing fuelfog for combustion. There are two types of injection nozzle, one is hole type and the otheris pintle type. The injection nozzle for DY30 and DY35Diesel engine is developed as a result of joint research and development project by Diesel Kiki, K. K. and our company, and it is direct combustion system,having the special hole type nozzle.

For producing better combustion gas, it utilizes swirl and squish flows and for producing the most proper fuel fog, injection pressure is raised up to 195 kg/cm2.

3.

Structure of the ignition nozzleholder

IDENTIFICATION MARK

 

 

T h s consists of the nozzleholderandnozzle. The nozzle

\

FUEL INLET

 

 

/

 

 

holder fixes the nozzle to the cytinderhead and at the same

 

 

TlNG WASHER

 

timeitplaysthe role of fuel passage to thenozzle. (The

 

 

/-

 

 

 

 

valve opening pressure of nozzle is adjustable. However, the

 

 

 

 

nozzle for DY30 and DY35 engines includes spacerin it and

 

 

 

 

it is unadjustable.)

 

 

 

 

Thenozzle consists of the nozzle bodyand needle valve;

 

NOZZLESPRING

 

 

andwhen the pressurereaches thelimit to open the valve,

 

 

 

 

 

 

 

nozzle for this diesel engineincludesspacer in itandit is

 

 

 

 

unadjustable.)

 

 

NOZZLE BODY

 

 

 

 

 

 

 

 

 

Fig. 61

 

4.

Function of nozzle

V A L V E CLOSED

V A L V E OPENED

 

 

 

Through the injection pump, fuel is delivered forcibly into the nozzle body andit raise up the needle valve and is at- omized in thecombustionchamberthroughtheholesof

the nozzle body. In case of the hole type nozzle, the size of the opening of the holes does not alter(See. Fig. 62.)

Fig. 62

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Contents Page EY45V Crankshaft ? m Page Performance Model DY35DtB Generaldescription of ENGlME Construction 2 Cylinderhead 8ROCKER ARM 1 TappetRocker Cower F Lubrication SystemCooling System Combustion System Sectional View of Engine \ \ Disassembly and Reassembly Special Tools3DISASSEMBLING Sequence PcsSe- Item quence L2L Procedures Oil pump Remarks Bolts, nuts etc. used Snap ring Remove the snap ring Be sure not to miss 22 7T bolt pcs 12 bolt pcs Install the flywheel 5 7T bolt, . . . , pcs Mm nut pcs T round 10 x 30 bolt pcs Mm nut . . . . . . . . . . . . . . .2 pcs Fuel Quality Of FuelGeneral Description of Auxiliary Gadgets and Parts Fuel Injection Pump MechanismRelation between the plunger and the rack Injectiontiming andeffectivestarting 51 kg/mm Fuel InjectionpumpNozzle Holder Fuel Injection Nozzle HolderPush further and check whether or not the fuel fog Body of nozzle with your fingers and then let 3GOVERNORMECHANISM and Operation Mechanism Operation $=I OIL FilterCirculation Installation Checks and Corrections Tables of Correction Standards Itemstandard005 Description 36.5Maintenance and Storing Checks and maintenance Reasons for requiring them 12 /2 Reducer M8 x Structure Of 1/2 Reducer 12-2-1INPUTSHAFT 12 3 1 Disassembly Sequence Sws12-5 Page Shaft Page Industrial Engines

DY41, DY30, DY35 specifications

Subaru Robin Power Products have built a solid reputation in the realm of portable engines and generators, particularly with their DY35, DY30, and DY41 models. These engines are extensively used for various applications, ranging from construction to agricultural equipment, owing to their reliability and efficiency.

The Subaru DY35 engine exemplifies performance with a displacement of 35cc. Its lightweight design ensures easy portability, while its robust construction provides durability in demanding environments. Featuring a two-stroke cycle, the DY35 offers a high power-to-weight ratio, making it ideal for handheld equipment and compact machinery. Key characteristics include its advanced electronic ignition system that promotes easy starting and reliable operation. The DY35 also boasts superior fuel efficiency, which translates to lower operational costs over time.

Moving on to the DY30, this engine is designed with versatility in mind. It has a slightly smaller displacement of 30cc, making it a great choice for various power tools and smaller machinery. The DY30 is known for its excellent torque delivery, which allows users to tackle challenging tasks without the need for frequent refueling. One of its standout features is the automatic lubrication system that keeps the engine running smoothly while minimizing wear and tear. This feature significantly extends the engine’s life, making it a favorite among users looking for long-term performance.

The DY41 takes a step up in power with a displacement of 41cc, making it suitable for heavier-duty applications. Designed for larger equipment, the DY41 is renowned for its high torque and robust construction. It also includes an innovative cooling system that effectively dissipates heat, ensuring optimal engine performance in prolonged usage scenarios. The DY41 is equipped with advanced vibration-dampening technology, which enhances user comfort and reduces fatigue during operation.

Each of these Subaru Robin engines incorporates fuel-efficient technologies that reduce emissions and comply with environmental regulations. They are built to withstand the rigors of demanding work environments while providing reliable power. With their distinct features and durable designs, the DY35, DY30, and DY41 engines continue to be sought-after choices for professionals and hobbyists alike, underscoring Subaru's commitment to innovation and quality in power products.
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