About Four-stroke engine Four Stroke Cycle Engines. A four-stroke cycle engine is an internal combustion engine that utilizes four distinct piston strokes (intake, compression, power, & exhaust) to complete one operating cycle. The piston make two complete passes in the cylinder to complete one operating cycle. Intake stroke: The piston moves downward to the bottom, this increases the volume to allow a fuel-air mixture to enter the chamber. Compression stroke: The intake valve is closed, & the piston moves up the chamber to the top. This compresses the fuel-air mixture. At the end of this stroke, a spark plug provides the compressed fuel with the activation energy required to begin combustion. Power Stroke: As the fuel reaches the end of its combustion, the heat released from combusting hydrocarbons increases the pressure which causes the gas to push down on the piston & create the power output. Exhaust stroke: As the piston reaches the bottom, the exhaust valve opens. The remaining exhaust gas is pushed out by the piston as it moves back upwards. What are four stroke engines used for? The four-stroke engine is the most common types of internal combustion engines & is used in various automobiles (that specifically use gasoline as fuel) like cars, trucks, & some motorbikes Why is 4 stroke engine better? Two-stroke engines dont live as long as four-stroke engines. The lack of a dedicated lubrication system means that the parts of a two-stroke engine wear-out faster. Two-stroke ...

Description: Item Type: 27 Colors Eye Shadow Palette Shimmer Matte Brand: Miss Rose
Colour: As Shown In Pictures Net Weight:
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Description:4 Styles Multi-layer Plastic Storage Box Desktop Organizer Drawer Storage Box Detachable Jewelry Makeup Cabinets Case Nail Storage Case Brand New & high quality. Durable, multi-functional, lightweight & easy to remove /install. Unique Design: Removable top lid, will help to expand the overall capacity by adding more drawers. Keep The Desk Clean & Tidy: To organize beads, pills, rings, necklace, jewelry, keys, hand sewing needles, business cards & some other small things. Advantage: each layer can be demolished, each layer at the bottom of the stitch groove can be freely combined. Specification:
Material: PP
Colour: Blue, Yellow, Pink, Green Pattern: 4 layers 4 Drawer: (length*wide*high)13*9*15cm Package included:4 Pcs Storage Box (the other decorations not included) Attention: About this item, were only sale the 4 layers.

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Description:1. 12v Splash Resistant Power Socket 2. Presented with vehicle & marine labels, easy for DIY.3. Digital voltage display helps to monitor vehicles electrical safety from 5V to 30V.4. High quality, more durable & solid aluminum panel than the plastic or the wooden one.5. Pre-wired for you to easily install in both 12V & 24V vehicle, yacht, ship, caravan, truck, etc.6. Easy to replace, protect panel from over-heating, over-currents, over charging & short circuit.7. Ideal for camper van motorhome conversions to control lighting, appliances & monitor leisure battery condition.8. Dual USB (Universal Serial Bus) charging ports (DC 5V/2.1A, 5V/2.1A), charging your phones, tablets, cameras, GPS, wireless headphones, etc.9. Switch panel for controlling universal electrical equipment in the vehicle: headlight, fog light, width light, car refrigerator switch, car vacuum switch, take electric for automobile external equipment, cigarette lighter & so on. Feature: Input Voltage: DC 12V/20A, 24V/10 A Power Socket:12 V Switch

Material: PPT + PC + Aluminum Panel Voltmeter Range:6-30 V Operating Temperature: -20C-+110 C Rocker Switch: 4 Switch Type: On
- Off Dual USB: 5V 2.1A +2.1ALED
Colour: Blue
Material: Aluminum board.
Size: 170x 120 x 90mm Packing included:1 X Rocker Switch Panel





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Features: Durable Firm Stable Heavy duty make or break (on/off) relay Ideal for universal 12V applications Type: Extra
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Description :4 Tiers Metal Multifunction Storage Pot Cutting Board Cover Chopping Shelf for Kitchen Utensils Manufacturer  Feature : - Stainless steel, non-toxic, sturdy & durable.- Corrosion resistance & heat resistance, not easy to rust.- Can be installed removable, easy to clean. Specification: Tier 4 Tiers Color White, Black Material Stainless Steel Size 26x 16x 22cm (10.24"x 6.3"x 8.66") Weight 550g Package Included :1 X Storage Shelf  ...

ï» Description :304 Stainless Steel Kitchen Shelf Dish Cup Drying Sink Drain Rack Storage Countertop Utensils Holder Feature :- made from high quality PP material, this draining basket is tough & durable to use.- Maximize space savings.- Stackable design, you can easily stack them high & low for maximum space utilization.- Convenient to know clearly what’s inside, great ventilation to keep things fresh & dry.-Can hold vegetables or fruits, bottles or cans in kitchen & pantry.  Specification: Color Blue, green, pink, beige Material PPSize Food box：32.3cmx 30cmx 8.5cm (12.7"x 11.81"x 3.35")4 Tiers   Basket :35cm x 32cm x 112.5cm (13.78" x 12.6" x 44.29") Weight 500g Package Included :1 x Storage Basket   Note :   Type 1: 4 Tiers green basket +cover bord Type 2: 4 Tiers blue basket +cover bord   Type 3: 4 Tiers pink basket +cover bord   Type 4: 4 Tiers beige basket +cover bord   Type 5: 4 Tiers green basket +food box   Type 6: 4 Tiers blue basket +food box   Type 7: 4 Tiers pink basket +food box   Type 8: 4 Tiers beige basket +food box  ...

Features:100% Brand new & high quality
Material: Chromed Metal Round Style: 36PSIFit on any standard size existing

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Description:4 Type Vintage Cuckoo Wooden Battery Wall Hanging Silent Swing Clock Child Home Specifications:
Colour:as pictures


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Specifications :
Material:PP
Colour: White Shape:U shape/V shape/O shape/ Square shape
Size:U shape:410-480


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