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Diagnostic method and arrangement for quantitatively checking actuators in internal combustion engines
Patent #: 4794790
Issued on: 01/03/1989
Inventor: Margarit-Metaxa ,   et al.

Fuel injection pump for a two-stroke engine
Patent #: 4846119
Issued on: 07/11/1989
Inventor: Geyer ,   et al.

Self-diagnosing fuel-purging system used for fuel processing system
Patent #: 5113834
Issued on: 05/19/1992
Inventor: Aramaki

Positive pressure canister purge system integrity confirmation
Patent #: 5146902
Issued on: 09/15/1992
Inventor: Cook, et al.

Fuel tank vapor control system with means for warning of malfunction of canister
Patent #: 5150689
Issued on: 09/29/1992
Inventor: Yano, et al.

Malfunction detection apparatus for detecting malfunction in evaporated fuel purge system
Patent #: 5158054
Issued on: 10/27/1992
Inventor: Otsuka

Method and arrangement for checking the controllability of a tank venting valve
Patent #: 5182945
Issued on: 02/02/1993
Inventor: Setter

Leak monitor for hydraulic drive systems
Patent #: 5187973
Issued on: 02/23/1993
Inventor: Kunze, et al.

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Diagnostic system for canister purge system
Patent #: 5191870
Issued on: 03/09/1993
Inventor: Cook

Tank-venting system for a motor vehicle and method for checking the operability thereof
Patent #: 5193512
Issued on: 03/16/1993
Inventor: Steinbrenner, et al.

Method and apparatus for the automated testing of vehicle fuel evaporation control systems
Patent #: 5239858
Issued on: 08/31/1993
Inventor: Rogers, et al.

Failure detection device for evaporative fuel purge system
Patent #: 5245973
Issued on: 09/21/1993
Inventor: Otsuka, et al.

Duty cycle purge control system
Patent #: 5263460
Issued on: 11/23/1993
Inventor: Baxter, et al.

Pressure sensor mounting for canister purge system
Patent #: 5267470
Issued on: 12/07/1993
Inventor: Cook

Evaporative emission system diagnostic
Patent #: 5275144
Issued on: 01/04/1994
Inventor: Gross

Self-diagnosis apparatus in system for prevention of scattering of fuel evaporation gas
Patent #: 5284050
Issued on: 02/08/1994
Inventor: Iida, et al.

Positive pressure canister purge system integrity confirmation
Patent #: 5297529
Issued on: 03/29/1994
Inventor: Cook, et al.

Abnormality detecting apparatus for use in fuel transpiration prevention systems
Patent #: 5317909
Issued on: 06/07/1994
Inventor: Yamada, et al.

Integrity confirmation of evaporative emission control system against leakage
Patent #: 5383437
Issued on: 01/24/1995
Inventor: Cook, et al.

Leak diagnosis system for evaporative emission control system
Patent #: 5408866
Issued on: 04/25/1995
Inventor: Kawamura, et al.

Positive pressure canister purge system integrity confirmation
Patent #: 5411004
Issued on: 05/02/1995
Inventor: Busato, et al.

Fuel vapor leak detection system
Patent #: 5483942
Issued on: 01/16/1996
Inventor: Perry, et al.

Leak detection assembly
Patent #: 5495749
Issued on: 03/05/1996
Inventor: Dawson, et al.

Means and method for operating evaporative emission system leak detection pump Patent #: 5499614
Issued on: 03/19/1996
Inventor: Busato, et al.