Analysis of forces in an automobile ECV using in external variable displacement swash plate type compressor for air conditioning control system

Mahmud, Md. Iqbal; Cho, Haeng Muk

doi:10.1007/s12206-014-0346-5

Cited by 4 publications

(1 citation statement)

References 2 publications

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“…Here, maximum stroke makes the flow pressure at P d maximum because of the piston movement. Reduction of P c pressure makes the swash plate angle maximum as there is flow from P d to P c [5]. Here, P c flow controls with respect to supply of current and duty control cycle, ranges from 0~100%.…”

Section: Introductionmentioning

confidence: 99%

Duty Control Effect during Crankcase Flow in Automobile ECV at its Crankcase Pressure Port

Mahmud

Cho

Seo

et al. 2015

AMM

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Electromagnetic control valve; widely known as ECV, is one of the important components used in variable displacement type compressor for air conditioning control system. It controls the compressor operation on the basis of pulse width modulation (PWM) technique that used to encode the information for transmission. PWM technique allows the control of the power supplied from an external controller to the electrical devices, especially to inertial loads. Different pressure ports in ECV, basically acts as the connecting passages through the ECV for air/refrigerant flow functions. Supply of current and duty control is an important issue that highly concerns to the crankcase flow (Pc flow) through the crankcase pressure port of the ECV. In this research paper, effect of duty control is investigated during the Pc flow at the crankcase pressure port of ECV.

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Section: Introductionmentioning

confidence: 99%

Duty Control Effect during Crankcase Flow in Automobile ECV at its Crankcase Pressure Port

Mahmud

Cho

Seo

et al. 2015

AMM

Self Cite

View full text Add to dashboard Cite

show abstract

Maximizing deflection in MEMS and microfluidic actuators fabricated in permanently magnetic composite polymers

Rahbar

Gray

2017

2017 IEEE 17th International Conference on Nanotechnology (IEEE-NANO)

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Analysis of the Mechanical Behavior of Bellows for Electromagnetic Control Valve

Son¹,

Hwang²,

Shin³

2016

Journal of the Korea Academia-Industrial cooperation Society

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The behavior of a bellows for an electromagnetic control valve was investigated. The bellows consists of an outer metal bellows, inner spring, and metal caps. The bellows needs to have sensitive and precise motion against external loads and pressure loads in order to control the position of the valve accurately. The spring constant of the inner spring and load-displacement curve of the bellows set were measured using a test machine. The inner spring showed a linear relation between load and displacement. The bellows set showed small stiffness at small displacement, and then the stiffness slightly increased upon subsequent displacement. Based on the measured data, finite element analysis was performed. Axisymmetric conditions were applied, and shell elements were used. The effective material properties of the outer bellows material were extracted. Additional analysis was performed, and the behavior of the bellows was analyzed using the finite element model.

show abstract

Analysis of forces in an automobile ECV using in external variable displacement swash plate type compressor for air conditioning control system

Cited by 4 publications

References 2 publications

Duty Control Effect during Crankcase Flow in Automobile ECV at its Crankcase Pressure Port

Duty Control Effect during Crankcase Flow in Automobile ECV at its Crankcase Pressure Port

Maximizing deflection in MEMS and microfluidic actuators fabricated in permanently magnetic composite polymers

Analysis of the Mechanical Behavior of Bellows for Electromagnetic Control Valve

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