ISMT 140 Fluid Power*

Students will learn the basic principles of hydraulics as a mechanical property of liquids. Hydraulics topics cover concepts such as hydraulic pumps, actuators, accumulators, cylinders, control valves, check valves, flow control valves, directional control valves, pressure control valves, motors, filters, coolers and reservoirs.

Credits

3 Credits

Prerequisite

Instructor Permission

ISMT 140Fluid Power*

Please note: This is not a course syllabus. A course syllabus is unique to a particular section of a course by instructor. This curriculum guide provides general information about a course.

I. General Information

Department

Trade & Industry

II. Course Specification

Course Type

Program Requirement

Credit Hours Narrative

3 Credits

Semester Contact Hours Lecture

30

Semester Contact Hours Lab

30

Prerequisite Narrative

Instructor Permission

Grading Method

Letter grade

Repeatable

N

III. Catalog Course Description

Students will learn the basic principles of hydraulics as a mechanical property of liquids. Hydraulics topics cover concepts such as hydraulic pumps, actuators, accumulators, cylinders, control valves, check valves, flow control valves, directional control valves, pressure control valves, motors, filters, coolers and reservoirs.

IV. Student Learning Outcomes

Upon completion of this course, a student will be able to:

Define hydraulics and give an application. Describe the function of five basic components of a hydraulic system. Define hydraulic pressure and give its units of measurement. Describe how to read a pressure gauge. Describe the operation of a hydraulic power unit. Describe the function of a hydraulic schematic. Describe the function of a hydraulic quick-connect fitting and give its schematic symbol. Describe the function of a tee and give its schematic symbol. Describe the operation of a pressure gauge and give its schematic symbol. Describe the function of a hydraulic cylinder and give an application. Describe the operation of a double-acting cylinder and give its schematic symbol. Describe the function of a 3-position, 4-way dcv and give an application. Describe the operation of a 3-position, 4-way dcv and give its schematic symbol. Define flow rate and explain how it can be measured. Describe the operation of two types of flow meters and give their schematic symbol. Describe the operation of a fixed-displacement pump and give its schematic symbol. Describe the operation of three types of fixed-displacement pumps and give an application of each. Describe the main function of a needle valve. Describe the operation of a needle valve and give its schematic symbol. Describe the function of a hydraulic motor and give an application. Describe the operation of a hydraulic motor and give its schematic symbol. List three types of hydraulic motors and give an application of each. Describe the eight basic rules for drawing hydraulic schematics. Describe how to calculate the force output of an extending cylinder. Describe how to calculate the force output of a hydraulic cylinder in retraction (pull). State Pascal's Law and explain its significance in hydraulics. Explain how force is multiplied using Pascal's Law. Describe two types of resistance in a hydraulic system. Explain how ?P describes hydraulic resistance. Explain how pressure is distributed in a hydraulic system. Describe two methods of representing hydraulic pressure. Describe how oil flows on the suction side of the pump. Describe the function of a relief valve and give an application. Describe the operation of a direct-acting relief valve and give its schematic symbol. Describe how a relief valve is used for system protection. Describe how a relief valve is used for speed control assistance. Describe the function of a two-sequence valve control circuit. Explain why a sequence valve is externally drained. Describe the function of a pressure reducing valve and give an application. Describe the operation of a direct-acting prv and give its schematic symbol. Describe the function of a PRV'S Bypass Check Valve. Explain why a PRV is externally drained. Demonstrative Outcomes Upon completion of this course, a student will be able to: Read a hydraulic pressure gauge. Read the liquid level and temperature in the reservoir. Operate a hydraulic power unit. Connect and disconnect a hydraulic hose that uses quick-connect fittings. Use a tee to connect two circuit branches together. Connect and operate a double-acting hydraulic cylinder using a 3-position, manually-operated DCV. Design a dual cylinder hydraulic circuit. Connect and read a flow meter. Connect and operate a needle valve to control the speed of an actuator. Control the speed of an actuator using a manually-operated DCV. Connect and operate a bi-directional hydraulic motor using a 3-position, manually-operated DCV. Draw a hydraulic schematic from the actual circuit connections on a pictorial. Draw a hydraulic circuit given a schematic. Design a multiple actuator hydraulic circuit. Calculate the extension force of a cylinder given its size and pressure. Measure the force output of an extending cylinder. Calculate the retraction force of a cylinder given its size and pressure. Measure the force output of a retracting cylinder. Measure Delta P across a hydraulic component. Convert between absolute pressure and gauge hydraulic pressure. Connect a relief valve in a circuit to limit pressure in the system. Design a circuit to provide bypass flow. Connect and adjust a flow control valve to control speed of an actuator. Connect and operate a meter-in flow control circuit. Connect and operate a meter-out flow control circuit. Design an independent speed control circuit. Design a two-speed actuator circuit. Calculate the extend speed of a hydraulic cylinder given its size and a flow rate. Calculate the retract speed of a cylinder given its size and a flow rate. Calculate the cylinder stroke time given its size and a flow rate. Connect and adjust the pressure setting of a sequence valve. Connect and operate a pressure sequence circuit. Design a pressure sequence circuit. Design a two-sequence valve control circuit. Connect and adjust the pressure setting of a PRV. Connect and operate a reduced pressure circuit. Design a hydraulic circuit that uses a pressure reducing valve.

V. Topical Outline (Course Content)

VI. Delivery Methodologies