INDUSTRY COMPONENT

Cylinder Block

The main structural component of a diesel engine that houses cylinders, coolant passages, and provides mounting points for other engine parts.

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Component Specifications

Definition
A cylinder block is the foundational structure of a diesel engine, typically made from cast iron or aluminum alloy. It contains cylindrical bores where pistons move, integrated coolant and lubrication passages, and mounting surfaces for the cylinder head, crankshaft, and other engine components. It provides structural integrity and precise alignment for all moving parts while managing thermal expansion and mechanical stresses.
Working Principle
The cylinder block serves as the engine's backbone, containing combustion chambers where fuel-air mixture ignites. It transfers combustion forces through pistons to the crankshaft while maintaining precise alignment of all components. Coolant passages regulate temperature, and oil galleries provide lubrication to moving parts.
Materials
Gray cast iron (GG25, GG30), Compacted graphite iron (CGI), Aluminum alloy (A380, A356) with cast iron cylinder liners
Technical Parameters
  • Weight 50-300 kg
  • Deck Height 200-500 mm
  • Bore Diameter 80-200 mm
  • Cylinder Spacing 1.1-1.3 × bore diameter
  • Surface Roughness Ra 0.8-1.6 μm for sealing surfaces
  • Coolant Passage Size 6-12 mm diameter
  • Main Bearing Journal Diameter 60-120 mm
Standards
ISO 185:2005, ISO 945:2008, DIN EN 1563:2018, SAE J431

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Cylinder Block.

diesel engine cylinder block engine block specifications cylinder block materials engine component manufacturing industrial engine parts Cylinder Block Cylinder Block in Motor Vehicle Manufacturing

Parent Products

This component is used in the following industrial products

Diesel Engine

An internal combustion engine that uses diesel fuel compression ignition to convert chemical energy into mechanical energy.

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Engine

Internal combustion power unit that converts fuel into mechanical energy to drive the skid steer loader's hydraulic systems and drivetrain.

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Engine/Motor

Power source that drives the cutting mechanism of a concrete cutter

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Engineering Analysis

Risks & Mitigation
  • Thermal cracking from overheating
  • Cylinder bore scoring
  • Coolant leakage
  • Structural fatigue failure
  • Corrosion in water jackets
FMEA Triads
Trigger: Inadequate coolant flow or air pockets
Failure: Localized overheating leading to thermal cracks
Mitigation: Proper coolant system design with adequate flow rates, bleed valves, and temperature monitoring
Trigger: Improper torque sequence during assembly
Failure: Warped deck surface causing head gasket failure
Mitigation: Follow manufacturer torque specifications and sequence, use calibrated torque wrenches
Trigger: Cavitation erosion in coolant passages
Failure: Coolant leakage and reduced heat transfer
Mitigation: Use proper coolant additives, maintain correct coolant concentration, avoid excessive pump speeds

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Cylinder bore: H7 tolerance, Deck flatness: 0.05 mm over 150 mm, Main bearing alignment: 0.02 mm TIR
Test Method
Pressure testing: 4-6 bar for 30 minutes, Dimensional inspection with CMM, Ultrasonic testing for casting defects, Magnetic particle inspection for cracks

Buyer Feedback

★★★★☆ 4.8 / 5.0 (17 reviews)

"Impressive build quality. Especially the technical reliability is very stable during long-term operation."

"As a professional in the Motor Vehicle Manufacturing sector, I confirm this Cylinder Block meets all ISO standards."

"Standard OEM quality for Motor Vehicle Manufacturing applications. The Cylinder Block arrived with full certification."

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Frequently Asked Questions

What is the difference between wet and dry cylinder liners?

Wet liners have direct contact with coolant for better heat transfer but require precise sealing. Dry liners are pressed into the block without coolant contact, offering simpler construction but potentially higher operating temperatures.

How does cylinder block material affect engine performance?

Cast iron provides excellent durability and vibration damping but adds weight. Aluminum reduces weight and improves heat dissipation but requires cylinder liners and has different thermal expansion characteristics.

What are common failure modes for cylinder blocks?

Cracking from thermal stress, cylinder bore wear, corrosion in coolant passages, warping of deck surface, and thread stripping in mounting points.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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Current Sensor Cylinder Block (for engines)