| Title of Invention | " A TURBOCHARGER" |
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| Abstract | A turbocharger comprises a compressor wheel (6) mounted within a compressor housing (5) having a pressurised air outlet, a control valve (12) for regulating the pressure of air supplied from the compressor housing outlet, and pressure operated actuating means (13) mounted to the turbocharger for actuating the control valve. The actuator comprises a case (16) defining a pressure chamber and an inlet for delivering pressure to the chamber, and a substantially rigid connecting pipe (23) of well defined shape extending from the actuator inlet to the compressor housing (5). The end of the connecting pipe (23) remote from the case (16) communicates with the compressor outlet to deliver pressure to the actuator inlet. |
| Full Text | DESCRIPTION (COMPLETE) OCR NOT PREPARE DUE TO PRINT PROBLEM WE CLAIM: 1. A turbocharger comprising a compressor wheel mounted within a compressor housing having a pressurized air outlet, a control valve for regulating the pressure of air supplied from the compressor housing outlet, and pressure operated actuator mounted to the turbocharger for actuating the control valve, the actuator having a case defining a pressure chamber and an inlet for delivering pressure to the chamber characterized in that a rigid connecting pipe extends from the actuator inlet to the compressor housing, the end of the connecting pipe being remote from the case communicating with the compressor outlet to deliver pressure to the actuator inlet. 2. A turbocharger as claimed in claim 1, wherein the connecting pipe is integral with, or is secured to, the actuator case forming a component of the actuator prior to mounting of the actuator on the turbocharger. 3. A turbocharger as claimed in claim 2, wherein the actuator pressure inlet is defined by an end cap which seals one end of the actuator case, and said connecting pipe is secured to, or integral with, said end cap. 4. A turbocharger as claimed in claim 2 or claim 3, wherein the actuator case is niountied turbocharger the mount by a mount being configured such that the operation of mounting the case to the turbocharger brings said end of the connecting pipe into communication with the compressor outlet. 5. A turbocharger as claimed in claim 4, wherein the mount has r relatively slidable members on the actuator case and on the compressor housing which enable the actuator case to be slid towards the compressor housing to enable said adjustment. 6. A turbocharger as claimed in claim 4 or claim 5 wherein the mount has a bracket defined by the compressor housing to which the actuator case is bolted. 7. A turbocharger as claimed in claim 6, wherein said bracket defines ' two slots for receiving bolt shafts which extend from the actuator case such that the actuator is slidable on said bracket prior to securing the actuator in position by tightening bolts onto the bolt shafts. 8. A turbocharger as claimed in any preceding claim, wherein said compressor housing defines a passage communicating with the compressor outlet and an opening for communicating with said end of the connecting pipe, and wherein sealing means are provided between the end of the connecting pipe and said opening in the compressor housing, such that a gas tight seal is formed as the end of the connecting pipe is brought into communication with the opening as the actuator is mounted to the turbocharger. 9. A turbocharger as claimed in claim 8, wherein the sealing means have a compression sealing member which is fitted to said end of the connecting pipe prior to mounting the actuator to the turbocharger. 10. A turbocharger as claimed in claim 9 wherein the connecting pipe has an annular flange a short distance from its end, the said flange provides a locating seat for the sealing member. 11 A turbocharger as claimed in claim 8, wherein around said opening to the passage in the compressor housing,] such that when the connecting pipe is in communication with the compressor outlet the sealing member is compressed between said flange and said sunken seat. A turbocharger as claimed in any preceding claim, whcih said tulrne our she has a bypass passageway extending from the inlet to the outlet and bypassing the turbine wheel, said control valve being mounted in the turbine housing to control exhaust gas flow through the bypass passageway. A turbocharger, substantially as hereinbefore described, with reference to the accompanying drawing. |
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791-del-1999-complete specification (granted).pdf
791-del-1999-correspondence-others.pdf
791-del-1999-correspondence-po.pdf
791-del-1999-description (complete).pdf
| Patent Number | 232147 | |||||||||
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| Indian Patent Application Number | 791/DEL/1999 | |||||||||
| PG Journal Number | 13/2009 | |||||||||
| Publication Date | 27-Mar-2009 | |||||||||
| Grant Date | 15-Mar-2009 | |||||||||
| Date of Filing | 25-May-1999 | |||||||||
| Name of Patentee | HOLSET ENGINEERING CO. LTD. | |||||||||
| Applicant Address | ANDREWS ROAD, HUDDERSFIELD HD1 6RA, ENGLAND, | |||||||||
Inventors:
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| PCT International Classification Number | F02D 23/00 | |||||||||
| PCT International Application Number | N/A | |||||||||
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PCT Conventions:
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