Wear and Wear Mechanism Simulation of Heavy-Duty Engine Intake Valve and Seat Inserts

Wang, Y. S.; Narasimhan, S.V.; Larson, J. M.; Schaefer, S. K.

doi:10.1361/105994998770348043

Cited by 21 publications

(12 citation statements)

References 5 publications

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“…4. Maximum Fe and Zn exposed by Bus because Fe and Zn emitted due to engine and tyre wear and tear (Wang et al, 1998). The iron concentration of Bike and Auto-rickshaw significantly decrease when compared to Bus.…”

Section: Particulate-bound Elemental Concentrationsmentioning

confidence: 97%

Traffic Related Aerosol Exposure And Their Risk Assessment Of Associated Metals In Delhi, India

2013

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A pilot study was carried out in New Delhi, India, to assess the level of traffic related aerosol exposure, individually and associated metals. These investigations also try to formulate their risk assessment using different modes of transport on a typical journey to work route and compared Bus, Auto-rickshaws and Bike (Two Wheelers) during the journey. The inhalable particulate matter monitored in winter period and also evaluated the potential health risk due to inhalation in the study. The exposure of Particulate matter was observed maximum in the Bike (502 ± 176.38 μgm-3) and minimum in the Auto-rickshaw (208.15 ± 61.38 μgm-3). In case of human exposure to metals (viz. Cu, Cd, Mn, Pb, Ni, Co, Cr, Fe, Zn), it was mostly exposed by Fe, Zn and Co and least exposed by Cd, Cr and Pb. Human health risk was estimated based on exposure and dosage response. The assessment of particulate-bound elements was calculated by assuming exposure of 6 h. The findings indicated that the exposure to particulate bound elements have relatively more adverse health effects. International Journal of Environment, Volume-2, Issue-1, Sep-Nov 2013, Pages 26-36 DOI: http://dx.doi.org/10.3126/ije.v2i1.9205

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Section: Particulate-bound Elemental Concentrationsmentioning

confidence: 97%

Traffic Related Aerosol Exposure And Their Risk Assessment Of Associated Metals In Delhi, India

2013

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“…Wang et al 17 simulated the wear and wear mechanism of heavyduty engine intake valve and seat inserts. Engine valve seat wear is considered as one of the most important factors affecting the engine performance.…”

Section: Literature Surveymentioning

confidence: 99%

Wear resistance enhancement in cryotreated En 52 and 21-4N valve steels

Jaswin

Shankar²,

Lal

2010

Int. J. Precis. Eng. Manuf.

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This experimental study investigates the wear resistance improvement in En 52 and 21-4N valve steels through shallow and deep cryogenic treatment using a reciprocatory friction and wear monitor as per the ASTM standard G-133. It has been observed that the wear resistance of En 52 and 21-4N has improved by 81.15% & 13.49% respectively, due to shallow cryogenic treatment, 86.54% & 22.08% respectively, due to deep cryogenic treatment, when compared to the conventional heat treatment. The microstructural study suggests that the improvement in wear resistance and hardness is attributed to the conversion of retained austenite into martensite, along with precipitation and distribution of the carbides brought in by the cryogenic treatment.

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“…They have been described to include a combination of abrasive, adhesive and oxidative wear [1,2]. Simultaneously, thin tribofilms are formed on the surfaces, composed from material from the valves and residues from the combustion, acting as a solid lubricant.…”

Section: Introductionmentioning

confidence: 99%

“…Many test rig designs have been employed to simulate the contact situation, some involving real valve and valve seats [1,2,[7][8][9][10] but also some with simplified simulated contact situations [11][12][13]. The wear mechanisms found in these studies include adhesive wear in form of micro welding and material transfer.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Wear mechanism study of exhaust valve system in modern heavy duty combustion engines

Forsberg

Hollman

Jacobson

2011

Wear

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Wear and Wear Mechanism Simulation of Heavy-Duty Engine Intake Valve and Seat Inserts

Cited by 21 publications

References 5 publications

Traffic Related Aerosol Exposure And Their Risk Assessment Of Associated Metals In Delhi, India

Traffic Related Aerosol Exposure And Their Risk Assessment Of Associated Metals In Delhi, India

Wear resistance enhancement in cryotreated En 52 and 21-4N valve steels

Wear mechanism study of exhaust valve system in modern heavy duty combustion engines

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