Rotary kinetic fluid motors or pumps – Selectively adjustable vane or working fluid control means – Upstream of runner
Patent
1983-05-31
1985-12-10
Hershkovitz, Abraham
Rotary kinetic fluid motors or pumps
Selectively adjustable vane or working fluid control means
Upstream of runner
60602, F01D 1714, F02B 3712
Patent
active
045576653
ABSTRACT:
A turbocharger for an internal combustion engine wherein a turbine wheel 18 in chamber 47 is driven by the engine's exhaust gases supplied to inlet volute 44 introducing the gases to the chamber through radially extending annular inlet passage 45 containing stationary vanes 60. The inlet passage 45 containing stationary vanes 60. The inlet area of passage 45 is selectively variable by moving axially a regulating ring part 61 (slotted at 70 to receive the vanes) relative to wall 46 of the passage. The ring part 61 is part of a thin walled regulating element 62 additionally comprising concentric tubular flanges 64,67. Flange 67 is in sliding contact with a stationary sealing ring 71 which prevents exhaust gases which may have entered region 122 behind the ring part 61 from passing under that ring part to the chamber 47. Thus pressure builds up in region 122 compelling gases from the volute to pass between the ring part 61 and wall 46, consequently the gases driving the turbine are substantially prevented from bypassing the regulated inlet passage 45.
REFERENCES:
patent: 2846185 (1958-08-01), Widmer
patent: 3195805 (1965-07-01), Cholvin et al.
patent: 3478955 (1969-11-01), Kunderman
patent: 3975911 (1976-08-01), Morgulis et al.
patent: 4005579 (1977-02-01), Lloyd
patent: 4214850 (1980-07-01), Sato
patent: 4403538 (1983-09-01), Rise
patent: 4403914 (1983-09-01), Rogo et al.
Gron Gary M.
Helset Engineering Company Limited
Hershkovitz Abraham
Pitko Joseph M.
Ruff Robert T.
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