Mason K Yu

US Patent:

39841936, Oct 5, 1976

Filed:

Oct 7, 1974

Appl. No.:

5/512547

Inventors:

Mason K. Yu - Birmingham MI

Assignee:

General Motors Corporation - Detroit MI

International Classification:

F04D 1700

US Classification:

415213R

Abstract:

A radial-flow turbomachine (centrifugal compressor or centripetal turbine) is provided with a lip extending along the free edge of each rotor blade from the inlet to the outlet end of the blade. The lip extends from the pressure face of the blade and serves to minimize leakage between the edge of the blade and the adjacent fixed shroud past which it is rotated.

US Patent:

57489084, May 5, 1998

Filed:

Jun 7, 1995

Appl. No.:

8/476894

Inventors:

Mason K. Yu - Birmingham MI

International Classification:

G06F 1500
G06F 1520
G06K 500
B42D 1500

US Classification:

395244

Abstract:

This is an expenditure data recording system using a uniquely designed classification binary code (or its equivalent) stored within the point of sale terminal system consisting of a cash register, a credit/debit card reader, and a telecommunications line. In a sales transaction, a credit/debit card passes through this reconfigured point of sale terminal not only to furnish relevant information (date/time, vendor identification, cardholder's name and account number, and transaction amount), but also to classify the expenditure by category via instant telecommunications link upon approval by the credit/debit card issuer (financial institution). Whenever there is a needed classification change at the point of sale terminal, one utilizes a unique set of color, binary-encoded cards to redefine a new expenditure category. Whereupon the credit/debit card issuer can process this classified expenditure sales transaction information to produce a periodic financial report, and remit it to the credit/debit account holder at any time. This entire operational system is virtually transparent to the cardholder and sales personnel.

US Patent:

47874210, Nov 29, 1988

Filed:

Jun 22, 1987

Appl. No.:

7/063796

Inventors:

Mason K. Yu - Birmingham MI

Assignee:

General Motors Corporation - Detroit MI

International Classification:

F16L 900

US Classification:

138178

Abstract:

Flow path defining means such as curved conduits, ducts, spillways, engine manifolds and ports, vehicle bodies, missiles and other means defining interior or exterior flow paths for fluids may be designed and generated through the use of a modified super-elliptical equation applied to cross sections between the ends to establish the coordinates of the boundary surface of the flow path. An optional coordinate transformation system and other features are also disclosed.

US Patent:

43811728, Apr 26, 1983

Filed:

Jun 29, 1981

Appl. No.:

6/278746

Inventors:

Mason K. Yu - Birmingham MI

Assignee:

General Motors Corporation - Detroit MI

International Classification:

F01D 902

US Classification:

415205

Abstract:

An improved centripetal flow gas turbine of the type having a housing with a rotor cavity, a rotor rotatably supported in the cavity, a volute chamber around the cavity having a source of motive fluid, and a circular orifice between the volute chamber and the cavity for directing motive fluid at the rotor at a stator exit angle. The improvement resides in the provision of motive fluid manifolds coextensive with the volute chamber and in the provision of louvers connecting the manifolds with the volute chamber whereby streams of motive fluid are injected into the flow of motive fluid in the volute chamber to increase the tangential velocity component thereof and thereby alter the stator exit angle to achieve an improvement in total turbine efficiency.

US Patent:

54334837, Jul 18, 1995

Filed:

Nov 1, 1993

Appl. No.:

8/146450

Inventors:

Mason K. Yu - Birmingham MI

International Classification:

B12D 1500

US Classification:

283 58

Abstract:

This is a uniquely designed bank check which integrates the classification grid of expenditures for any household or business; whereupon the payer of the check initially marks only one applicable space from said grid; whereupon the payer's processor utilizes the image-captured, relevant information from the check; whereupon the payer's processor forwards said information, automatically produces a finalized financial report, and sends it to the payer of the check at the end of any monthly/annual check processing cycle.

US Patent:

44858884, Dec 4, 1984

Filed:

Jun 10, 1983

Appl. No.:

6/503069

Inventors:

Mason K. Yu - Birmingham MI

Assignee:

General Motors Corporation - Detroit MI

International Classification:

B60H 106
F01P 506

US Classification:

180297

Abstract:

Transversely mounted engine cooling fan in parallel with vehicle engine mechanically driven by straight drive and having blades whose pitch is varied in accordance with engine speed and load for optimized cooling performance. The fan has small radial dimension and extended width to match low and wide engine cooling radiator so that the front hood can be aerodynamically streamlined.

US Patent:

41731212, Nov 6, 1979

Filed:

May 19, 1978

Appl. No.:

5/907894

Inventors:

Mason K. Yu - Birmingham MI

Assignee:

American Standard, Inc. - New York NY

International Classification:

F02C 310

US Classification:

60 3916R

Abstract:

An automotive gas turbine engine includes a gasifier spool having variable iris control means for regulating air flow to a compressor supplying a primary burner that is operative to produce motive fluid for driving the gasifier turbine and to supply a thermally insulated pressure accumulator located upstream of a secondary burner that exhausts to a variably controlled power turbine nozzle of a power turbine and wherein control means are operative upon engine start to open the variable iris to the gasifier spool and to direct fuel to the primary burner until the gasifier turbine produces a desired pressure in the accumulator and wherein means are provided to sense the pressure within the accumulator and operative following attainment of the desired pressure to close the iris and reduce primary burner fuel flow to a predetermined minimum to maintain gasifier spool speed at between 85% to 95% of full design speed thereof; the control means further including a manual control to the variable power turbine nozzle to direct motive fluid across the power turbine to meet a desired power output therefrom and wherein fuel flow to the secondary burner is maintained to hold a desired power turbine inlet temperature schedule.

US Patent:

42065968, Jun 10, 1980

Filed:

Sep 14, 1978

Appl. No.:

5/942356

Inventors:

William R. Kuziak - Sterling Heights MI
Elias H. Razinsky - Troy MI
Mason K. Yu - Birmingham MI

Assignee:

General Motors Corporation - Detroit MI

International Classification:

F02C 310

US Classification:

60 3916R

Abstract:

A gas turbine engine for vehicular road type operation includes a gasifier spool and a power turbine spool driven by gases from a gas turbine engine combustor and wherein the gasifier spool includes first and second shaft portions thereon one of which is connected to the gasifier compressor and the other of which is connected to the gasifier turbine. A clutch and brake controlled planetary gear set cooperate to define a rotor speed responsive lock-up assembly for controlling relative rotation of the two shaft portions of the gasifier spool and include means responsive to compressor discharge pressure and a first speed of the gasifier turbine shaft portion to control engagement of a clutch and control release of a planetary gear set brake band to cause both shaft portions of the gasifier spool to either rotate as a single unit or at a predetermined speed difference for maintaining optimal, aerodynamically improved incidence angles of gas flow across the gasifier turbine blades during both part load vehicle operation and full road load vehicle operation.