Andrew L Johnston

44744846, Oct 2, 1984

Aug 2, 1982

6/404633

Hugh MacInnes - La Canada CA
Andrew E. Johnston - Granada Hills CA

Roto-Master Inc. - North Hollywood CA

F16C 2708

384215

An improved floating bearing for turbochargers and similar high speed rotating machinery is axially restrained by the interposition of a spring washer between the flange on the floating bearing and a seal plate attached to the housing that carries the bearing and a shaft rotatable therein. The spring biasing means is configured as an annular washer having openings therethrough, preferably in the outer perimeter thereof, to increase the flexibility of the washer. The interior portion of the washer acts against the flange of the floating bearing while the exterior portion of the washer is held relative to the housing in radial displacement from the bearing flange.

45041873, Mar 12, 1985

May 10, 1982

6/376492

Hugh MacInnes - La Canada CA
Jon A. Meyer - Arleta CA
Andrew E. Johnston - Granada Hills CA
John W. Fort - Woodland Hills CA

Roto-Master, Inc. - N. Hollywood CA

F01D 1700
F01D 2524

415 1

A method of operating turbochargers for use with internal combustion engines and a turbine housing therefor wherein the housing is uniquely configured so as to be able to be mounted in the engine compartment in a variety of modes and wherein the turbocharger may or may not be used in conjunction with a wastegate control. The unique configuration of the turbine housing permits the passage of exhaust gas through the interior of the turbine housing and more specifically through the extent of the internal scroll thereof wherein the exhaust gas imparts to the turbine operation peak efficiency before the driving gas is vented through a wastegate passageway at the terminus of the turbine housing as opposed to the entry thereof. The exhaust gases may also be bypassed from a point between the entry and terminus of the internal scroll. The method of operation is such that the exhaust gas velocity within the turbine housing and more specifically the internal scroll thereof, is at high velocity in the peak efficiency range during turbine operation and during wastegating, thereby reducing turbine back pressure on the internal combustion engine as compared to that pressure that would be developed should the driving gas be wastegated or bypassed before it entered the turbine housing, and more specifically, the internal scroll thereof.

48151840, Mar 28, 1989

Jul 8, 1987

7/070948

Andrew E. Johnston - Granada Hills CA
Jon A. Meyer - Arleta CA
Ronald Miller - Marina del Ray CA

Rotomaster Inc. - N. Hollywood CA

B21K 300

291568CF

A water-cooled turbocharger is fabricated employing a coreless die casting process. Instead of casting a complete passage in the bearing housing of the turbocharger, an open ended channel is cast into the housing and then sealed off by a mating seal plate. O-rings or other sealing materials are used to seal the mating joints to prevent pressurized cooling water from leaking to the outside or into the internal bearing housing area.

47040750, Nov 3, 1987

Jan 24, 1986

6/822261

Andrew E. Johnston - Granada Hills CA
Jon A. Meyer - Arleta CA
Ronald Miller - Marina del Rey CA

F04B 1700

417407

A water-cooled turbocharger is fabricated employing a coreless die casting process. Instead of casting a complete passage in the bearing housing of the turbocharger, an open ended channel is cast into the housing and then sealed off by a mating seal plate. O-rings or other sealing materials are used to seal the mating joints to prevent pressurized cooling water from leaking to the outside or into the internal bearing housing area.