You are seeking a device that is driven by a high airflow at low
pressure, and produces a low airflow at higher pressure.
Such devices are made by Sprague, where they are known as "gas
boosters" and "air amplifiers". Sprague is a division of
Curtiss-Wright Flow Control Corporation.
10195 Brecksville Rd
Brecksville, Ohio 44141
The devices are described here:
Curtiss-Wright Flow Control - Products
Sprague Air Amplifiers
Technical data is available here (requires PDF reader):
Sprague Advanced Air Driven Gas Boosters And Amplifiers
From the Sprague literature:
"Supercharge shop air or bottled gas with Sprague Products gas booster
... Being air-driven and having no electrical connections, Sprague
Products pneumatic boosters are non-sparking ... A variety of Sprague
Products boosters have been developed to convert precharge low gas
pressures to higher gas pressures."
"The Sprague Products booster, like Sprague Product air-driven
hydraulic pumps, employ the piston differential areas principle - a
large area air piston, driven at low air pressure to drive a small
area compression piston which converts input gas to higher pressure,
lower volume output gas."
"The PowerStar air amplifier design offers greater efficiency and is
modular for increased versatility. It provides higher output pressure
without expensive modifications to existing compressed air systems.
The PowerStar air amplifier supplies up to 500 psi (35 bar) and flows
to eight SCFM (226 liters N/min). The PowerStar is easy to install,
without need of electrical or mechanical drive. Non-lubricated with no
external muffler, it requires minimal maintenance."
The standard range of Sprague products can work from an input pressure
of 25psi. That's 1.7 times normal air pressure. I don't know the specs
of your blower, but you would need to check that it can generate that
pressure (when its air outlet is connected to a load) and that the
back pressure will not overload your blower motor.
Hydratron air operated gas booster pumps
SMC Pneumatics Air Booster Regulators
SC Hydraulic Engineering Corp - Air Boosters
SC Hydraulic Engineering Corp - Gas Boosters
Google search strategy:
"high volume low pressure" "low volume high pressure"
ram "high pressure" air flow
"air ram" OR "ram air"
"pneumatic ram" "high pressure" "low pressure"
turbo "low pressure" "high pressure" air volume
converts "high pressure" "low pressure" volume OR flow air
"gas booster" OR "air pump" convert
"air operated booster"