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Piston Motor Volumetric Efficiency LAB4-ROBO241, Lab Reports of Hydraulics

Centennial CollegeHydraulics

Objectives:  Find the piston motor's volumetric efficiency.  Making use of the information acquired, create graphs showing motor efficiency.  Use ANSI symbols to create a circuit diagram.

Typology: Lab Reports

2021/2022

Available from 01/06/2023

Hareshjasoliya
Hareshjasoliya 🇨🇦

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Course Name: Robo 241 Hydraulics 3
Section: 002
Lab No.: 4
Lab report must be handed in at the beginning of your next lab class.
Any late submission will be deducted 10% each business day.
Student Name: _ _Soni Priyank
(Last name) (First Name)
Student No. 301242714
Date: 27th September 2022
Instructor: Paul Bligdon
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Download Piston Motor Volumetric Efficiency LAB4-ROBO241 and more Lab Reports Hydraulics in PDF only on Docsity!

Course Name: Robo 241 Hydraulics 3

Section: 002

Lab No.: 4

Lab report must be handed in at the beginning of your next lab class. Any late submission will be deducted 10% each business day.

Student Name: _ _Soni Priyank

(Last name) (First Name)

Student No. 301242714

Date: 27

th

September 2022

Instructor: Paul Bligdon

Piston Motor Volumetric Efficiency

Abstract:

The analysis of the piston motor and the identification of various hydraulic unit components are covered in this report. The goal of this lab was to investigate the construction, operation, and limitations of a typical piston motor. The report includes a description of the piston motor, volumetric efficiency calculations, and values for pressure, flow, and RPM. The testing carried out at the end of the experiment provided a lot of information about the piston motor, including its theoretical and practical pump delivery, reservoir sizing, heat generation and dissipation, pump efficiency, and horsepower.

Objectives:

 Find the piston motor's volumetric efficiency.  Making use of the information acquired, create graphs showing motor efficiency.  Use ANSI symbols to create a circuit diagram.

Procedure:

  1. As part of the lab activity, the hydraulic power unit's pressure, return, and drain hoses were initially identified.
  2. The pressure, return, and drain lines were then connected to the piston motor.
  3. Next, it was made sure the pump was rotating in a clockwise direction.
  4. The return and pressure hoses on the load pump were noted, and from there, 120 volts were connected to the wall outlet. The reflective strips on the connector between the hydraulic motor and pump were then identified to complete the process.
  5. After one minute, the by-pass check valve was gradually closed after the by-pass valve was fully opened and the hydraulic power unit was turned on.
  6. Manually adjusting the swash plate to let a pump's output flow at a rate of 12 GPM. The volume, motor speed, intake, exit, and load pressure values were then gathered.
  7. After that, the measurements were repeated while the pressure was raised by 200 PSI increments until it reached 1900 PSI. The pressure relief valve on the pump was then set to 300 PSI.

Equipment List:

 Hydraulic motor, hydraulic hoses, and hydraulic power unit  Hoses for pressure, return, and drain  Testing Stand  Piston Motor  Pressure gauges  Tachometer

Result:

Load Relief Valve Pressure (PSI) Flow (Q) into Vane Motor (GPM) Actual Piston Motor Speed (RPM) Pressure at inlet of Piston Motor (PSI) Pressure at outlet of Piston Motor (PSI) 300 11.96 2156 425 0 500 11.92 2148 500 0 700 11.90 2141 550 0 900 11.87 2133 610 0 1100 11.85 2126 690 0 1300 11.82 2117 750 0 1500 11 .78 2110 815 0 1700 11.75 2103 890 0 1900 11.71 2094 970 0

  1. Piston Motor Displacement: Vd = 1.24 in^3 /rev
  2. Theoretical Speed: o Theoretical Speed (N) = (Q * 231) / volumetric displacement o For 11.96 GPM, N 1 = 11.96 * 231 / 1.24 = 2228.03 RPM o For 11.90 GPM, N 2 = 11.90 * 231 / 1.24 = 2216.85 RPM o For 11.85 GPM, N 1 = 11.85 * 231 / 1.24 = 2207.54 RPM o For 11.78 GPM, N 1 = 11.78 * 231 / 1.24 = 2194.50 RPM o For 11.75 GPM, N 1 = 11.75 * 231 / 1.24 = 2188.91 RPM o For 11.71 GPM, N 1 = 11.71 * 231 / 1.24 = 2181.45 RPM

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0 200 400 600 800 1000 1200 1400 1600 1800 2000 Pressure Drop (PSI) vs Volumetric Efficiency