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Class Information
Number: 123/184.54
Name: Internal-combustion engines > Intake manifold > Manifold tuning, balancing or pressure regulating means > With back flow prevention valve
Description: Intake manifold including a one-way valve for restricting the flow of working material to one direction.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7533644 |
Air induction module for a combustion engine having pulse charging |
May. 19, 2009 |
| 7370621 |
Intake manifold with air vessel for an internal combustion engine |
May. 13, 2008 |
| 7281512 |
Passively variable plenum volume for a vehicle intake manifold assembly |
Oct. 16, 2007 |
| 7255197 |
Muffler |
Aug. 14, 2007 |
| 6966310 |
Method and device for ventilation of gases in a combustion engine |
Nov. 22, 2005 |
| 6684841 |
Vacuum boost apparatus |
Feb. 3, 2004 |
| 6679228 |
Low evaporative emissions integrated air fuel module |
Jan. 20, 2004 |
| 6422184 |
Method and apparatus for impulse charging of an internal combustion engine |
Jul. 23, 2002 |
| 5826554 |
Pressure relief means for a thin wall, air intake pipe for an internal combustion engine |
Oct. 27, 1998 |
| 5746172 |
Process for increasing the torque of an internal combustion engine and internal combustion engine |
May. 5, 1998 |
| 5704327 |
Intake pipe for an internal combustion engine |
Jan. 6, 1998 |
| 5671708 |
Engine |
Sep. 30, 1997 |
| 5660155 |
Four-cycle engine |
Aug. 26, 1997 |
| 5642698 |
Induction system for internal combustion engine |
Jul. 1, 1997 |
| 5613468 |
Fuel injection control |
Mar. 25, 1997 |
| 5584270 |
Intake pipe for an internal combustion engine |
Dec. 17, 1996 |
| 5495830 |
Variable valve timing |
Mar. 5, 1996 |
| 5487366 |
Intake manifold |
Jan. 30, 1996 |
| 5280769 |
Pressure relief means for induction system |
Jan. 25, 1994 |
| 5255648 |
Intake air control device for an internal combustion engine |
Oct. 26, 1993 |
| 5253617 |
Reed valve assembly for an intake manifold and method of assembly |
Oct. 19, 1993 |
| 5224460 |
Method of operating an automotive type internal combustion engine |
Jul. 6, 1993 |
| 5179917 |
Intake air control device for an internal combustion engine |
Jan. 19, 1993 |
| 5143038 |
Internal combustion engine with delayed charging |
Sep. 1, 1992 |
| 5131365 |
Piston type IC engine with swing type inlet valve |
Jul. 21, 1992 |
| 5129367 |
Intermittent bypass system for a check valve |
Jul. 14, 1992 |
| 5103867 |
Active reed valve |
Apr. 14, 1992 |
| 5080065 |
Air intake control system for an internal combustion engine |
Jan. 14, 1992 |
| 5040493 |
Automotive intake manifold with integral alternator |
Aug. 20, 1991 |
| 5038734 |
Method for the operation of an IC engine and an IC engine for performing the method |
Aug. 13, 1991 |
| 5027754 |
Non-return valve of the flap type for flow concentration |
Jul. 2, 1991 |
| 5020483 |
Intake system for two cycle internal combustion engine |
Jun. 4, 1991 |
| 5018486 |
Pressure relief system for a check valve |
May. 28, 1991 |
| 5009199 |
Intake reservoir for an engine having a check valve |
Apr. 23, 1991 |
| 4991547 |
Intake port pressure control system for engine induction system |
Feb. 12, 1991 |
| 4986225 |
Intake reservoir system for an engine having a check valve |
Jan. 22, 1991 |
| 4981123 |
IC engine of the piston type |
Jan. 1, 1991 |
| 4955329 |
Valve unit for an internal combustion engine intake duct, comprising non-return flap valves |
Sep. 11, 1990 |
| 4951617 |
Attachable intake valve assembly and method for using same |
Aug. 28, 1990 |
| 4949681 |
Method for postcharging an IC engine of the piston type and an apparatus for performing the method |
Aug. 21, 1990 |
| 4928639 |
Multicylinder IC engine with a stroke charging device |
May. 29, 1990 |
| 4917058 |
Method of reducing pumping losses and improving brake specific fuel consumption for an internal combustion engine |
Apr. 17, 1990 |
| 4905646 |
Two-stroke internal combustion engine with cylinder head valves |
Mar. 6, 1990 |
| 4890582 |
Method for postcharging an IC engine of the piston type and an apparatus for performing the method |
Jan. 2, 1990 |
| 4796584 |
Intake control system for internal combustion engine and intake control valve used therein |
Jan. 10, 1989 |
| 4784090 |
Intake device for outboard engine |
Nov. 15, 1988 |
| 4779580 |
Suction system for a reciprocating piston internal combustion engine |
Oct. 25, 1988 |
| 4732116 |
Two-cycle internal combustion engine |
Mar. 22, 1988 |
| 4691671 |
Carburetor icing preventing device |
Sep. 8, 1987 |
| 4682576 |
Intake system for diesel cycle engines |
Jul. 28, 1987 |
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