摘要:
This invention relates to gp41 peptide derivatives that are inhibitors of viral infection and/or exhibit antifusogenic properties. In particular, this invention relates to gp41 derivatives having inhibiting activity against human immunodeficiency virus (HIV) and simian immunodeficiency virus (SIV) with enhanced duration of action for the treatment of the respective viral infections.
摘要:
This invention relates to gp41 peptide derivatives that are inhibitors of viral infection and/or exhibit antifusogenic properties. In particular, this invention relates to gp41 derivatives having inhibiting activity against human immunodeficiency virus (HIV) and simian immunodeficiency virus (SIV) with enhanced duration of action for the treatment of the respective viral infections.
摘要:
This invention relates to gp41 peptide derivatives that are inhibitors of viral infection and/or exhibit antifusogenic properties. In particular, this invention relates to gp41 derivatives having inhibiting activity against human immunodeficiency virus (HIV) and simian immunodeficiency virus (SIV) with enhanced duration of action for the treatment of the respective viral infections.
摘要:
The claimed invention is directed toward modified HIV-1 gp41 C-terminal heptad repeat fusion inhibitors. In particular, peptide derivatives of C-34 were prepared (e.g., FB006M) and modified with 3-maleimidoproionic acid (MPA), which allows rapid and irreversible conjugation to serum albumin at a 1:1 molar ratio. These polypeptides have an extended half-life in vivo and display potent antiviral activity against HIV-1.
摘要:
A fuel injector regulator having combined initial injection and peak injection pressure regulation. The fuel injector regulator includes a rate shaping valve movably supported within a valve bore between a closed position and an open position to regulate a rate of injected fuel. The regulator further includes a waste gate valve having a body movably supported within a bore of the rate shaping valve and between a closed position and an open position to regulate the pressure of injected fuel.
摘要:
A fuel injector assembly is provided which includes a control valve actuated by a piezoelectric actuator acting through a hydraulic amplifier to facilitate pressurization of fluid fuel within the fuel injector assembly for dispersing the fuel into a combustion chamber. The piezoelectric actuator is excited by a variable voltage source to control the degree of displacement of the hydraulic amplifier to control the degree of fluid fuel dispersement by controlling the degree of displacement of the control valve. The configuration of the control valve may be such as to provide multi-step fluid fuel dispersing thereby providing a low fuel injection pressure and rate followed by a higher fuel injection pressure and rate. Multi-step fluid fuel dispersing may also be accomplished by varying the level of excitation voltage to the piezoelectric actuator. A pressure check valve is provided to prime the hydraulic amplifier cavity, to expel trapped air therefrom, to compensate for fuel leakages from the cavity and to circulate fuel through the cavity. An internal combustion engine including such a fuel injector assembly is also provided.
摘要:
A fuel injector 10 for a Diesel engine has a plunger 12 and two control valves 20 and 30 for controlling the injection of fuel from the main supply cavity to the discharge port 52. Each control valve 20 and 30 are actuated through piezo-electric stacks 34 and 74 connected to a electronic variable voltage supply 33.
摘要:
A fuel injection system, comprising a low pressure fuel delivery pump with constant output in fluid communication with a low pressure fuel line; said fuel line connected to an electronic controlled fuel pressure regulator and fuel pressure sensor; an electronic control module to monitor and adjust fuel pressure in said low pressure fuel line to a desired fuel delivery pressure and supply fuel to an injector at a feed-back controlled pressure; and at least one injector in fluid communication with a cylinder in an internal combustion engine; said injector having an injector body equipped with a fuel metering orifice to supply fuel from the fuel line to a fuel cumulative chamber within the injector, a reciprocating plunger within said injector; said plunger equipped with a plunger; said plunger passage opening at one end to said fuel cumulative chamber, and, upon reciprocation of the plunger within the injector, opening at its other end to said metering orifice; said injector further equipped with an electronically controlled solenoid control valve to operate a fuel needle within said injector to inflict fuel into said engine cylinder; and a camshaft at least one cam lobe to drive said injector plungers; said cam lobe having a base circle section to meter fuel for injection; a rising section for pressurizing fuel in the cumulative chamber; a zero velocity section of sufficient length to accommodate a variety of fuel injection timing sequences, and a falling section; said camshaft interactive with a rocker arm to drive said plunger and inject fuel into said engine cylinder.
摘要:
A fuel injector 10 for a Diesel engine has a plunger 12 and two control valves 20 and 30 for controlling the injection of fuel from the main supply cavity to the discharge port 52. Each control valve 20 and 30 are actuated through piezo-electric stacks 34 and 74 connected to a electronic variable voltage supply 33.
摘要:
A fuel injector regulator having combined initial injection and peak injection pressure regulation. The fuel injector regulator includes a rate shaping valve movably supported within a valve bore between a closed position and an open position to regulate a rate of injected fuel. The regulator further includes a waste gate valve having a body movably supported within a bore of the rate shaping valve and between a closed position and an open position to regulate the pressure of injected fuel.