ELECTRIC MOTOR OPERATED VALVE. ELECTRIC MOTOR
Electric motor operated valve. Wafer check valve suppliers.
Electric Motor Operated Valve
- An electric motor uses electrical energy to produce mechanical energy, very typically through the interaction of magnetic fields and current-carrying conductors. The reverse process, producing electrical energy from mechanical energy, is accomplished by an alternator, generator or dynamo.
Any device that converts Electromagnetic force to motion, or vice-versa. Electric motors are often used in accessories such as power windows or power seats to provide movement with minimal effort by the user.
a motor that converts electricity to mechanical work
- Be in effect
- (operate) function: perform as expected when applied; "The washing machine won't go unless it's plugged in"; "Does this old car still run well?"; "This old radio doesn't work anymore"
- (operate) handle and cause to function; "do not operate machinery after imbibing alcohol"; "control the lever"
- (operate) direct or control; projects, businesses, etc.; "She is running a relief operation in the Sudan"
- (of a person) Control the functioning of (a machine, process, or system)
- (of a machine, process, or system) Function in a specified manner
- A membranous fold in a hollow organ or tubular structure, such as a blood vessel or the digestive tract, that maintains the flow of the contents in one direction by closing in response to any pressure from reverse flow
- device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone
- A device for controlling the passage of fluid through a pipe or duct, esp. an automatic device allowing movement in one direction only
- A cylindrical mechanism in a brass instrument that, when depressed or turned, admits air into different sections of tubing and so extends the range of available notes
- a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it
- control consisting of a mechanical device for controlling the flow of a fluid
Essolene visible gas pump - Forest, VA
Visible gas pumps first appeared around 1915, and went out of use in the 1930's. This particular pump is located at Rick's Antiques in Forest, Virginia.
"Essolene" was a special motor fuel introduced by Esso in 1933, advertised as containing an additive that guaranteed smoother engine performance. The ads claimed that this gasoline contained a proprietary "special solvent oil that cleans valve stems, piston rings, and piston-ring grooves". Esso's 1933 ads proclaimed: "Make one simple, convincing test -- try Essolene once in your car, under any conditions you choose. Essolene will speak for itself." I would appreciate hearing from anyone having further background on what this special solvent additive was, and how effective it was. Essolene seems to have been marketed only during the decade of the 1930s.
This vintage pump was moved to this site from another location, to serve as part of the outdoor display at Rick's Antiques (a "vintage Esso service station" motif). It is possible that the body of the pump and the Essolene globe on top might have come from different locations.
With visible pumps, gasoline was pumped from underground tanks into the visible glass cylinder at the top of the pump. The operator watched the level of gas in the cylinder and stopped the flow when the gas reached the desired gallons. There were three different mechanisms for drawing the gas from the underground tank into the overhead glass cylinder: manual hand operated, electric motor-driven, or air-operated. Once in the glass cylinder, the gas seems to have flowed by gravity into the car's gas tank, controlled by the nozzle seen on the right of this pump.
Many states banned visible pumps because of fire hazards and inaccurate measurements. Clock meter pumps replaced visible pumps in the 1930s.
1959 Ford Prefect
My first car was a 59 Prefect, so this is a favourite shot, in spite of being a poor photo.
Though nostalgia didn't prevent me from remembering what a terrible car it was to drive. 3 speed gear box with no syncromesh between 1st and 2nd. 36 bhp 1172cc side valve engine gave a 0 to 60mph time of about 35 seconds. Not that you ever did it; anything over 50 was scary!
And the windscreen wipers - no electric motor, they were operated by a vacuum pump which worked best when the car was stationary. as it accelerated, so they slowed down...
See also:
pvc foot valves
quick release air valve
milwaukee valve co inc
lift check valve
direct acting pressure reducing valve
double block and bleed valve arrangement
ge water valve
vickers solenoid valves
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