What is the purpose of a pintle cap?
A pintle cap is the small replaceable piece of the injector designed to protect the fragile pintle end of a fuel injector. Over time as pintle style injectors have been replaced with a disc style injector.
What is fuel injector pintle?
The pintle injector is a type of propellant injector for a bipropellant rocket engine. Pintle injectors began as early laboratory experimental apparatuses, used by Caltech’s Jet Propulsion Laboratory in the mid-1950s, to study the mixing and combustion reaction times of hypergolic liquid propellants.
How do you remove a pintle hat?
As for getting pintle caps off it should be pretty easy usually. Grab yourself something thing but strong such as a razor blade and slide it between the top of the cap and the injector body and pry the cap off.
Is a fuel injector normally open or closed?
Injectors are fully open or fully closed. The amount of fuel injected is determined by how long the injector is open or by how long the pintle, disc or ball is removed from its seat.
What is pintle type nozzle?
The Pintle Nozzle: In this type of nozzle the stem of nozzle valve is extended to from a pin or Pintle which protrudes through the mouth of the nozzle. The size and shape of the Pintle can be varied according to the requirement. It provides a spray operating at low injection pressures of 8-10MPa.
Can fuel injectors stick open?
The symptoms of a stuck-open or incompletely closing fuel injector are quite different than an injector that is completely dead or partially clogged. Also, it is common for the fuel economy of the vehicle to slowly worsen as a fuel injector starts to wear out and inject more fuel than desired.
How do I know if my fuel injector is stuck open?
Odor and Temperature: An injector that is stuck open or partially closed will emit an unburnt fuel odor in the engine compartment. A dead injector will cause the engine start and operate when it is cold but not when it is warm.
What is the special feature of pintle type nozzle?
The Pintle Nozzle: It provides a spray operating at low injection pressures of 8-10MPa. The spray cone angle is generally 60 degree. The main advantage of this nozzle is that it avoids weak injection and dribbling. It prevents the carbon deposition on the nozzle hole.
What is the difference between pintle and hole injector?
The Pintle Type Injector. Due to rapid air swirl in the combustion chambers of IDI engines, a high energy jet as is characteristic of the hole-type injector is not necessary, instead the pintle type is normally used. In general it lifts off its seat at a pressure of between 10 and 13 MPa, depending upon the engine.
What liquid is used in rocket engines?
liquid hydrogen
In combination with an oxidizer such as liquid oxygen, liquid hydrogen yields the highest specific impulse, or efficiency in relation to the amount of propellant consumed, of any known rocket propellant.
Do you need a pintle cap for a Bosch injector?
Phase I=140whp Phase II=230whp Phase III=Cant tell the clutch pedal from the brake! Notice the 4-hole Bosch injector disk is recessed within a metal shroud therefore does not require a separate pintle cap whereas the 12-hole stocker has a black plastic cap. Those stock caps are on pretty tight.
Can a Honda injector pintle cap be removed?
The honda guys have basically taken off the cap, and grinding the surrounding to make the injector runs a larger cc. IIRC you can send in your modified injectors to RC and they will do a flow for you. Not that tough to remove the cap, just have to be very gentle. I have not read up enough to see how the caps can prevent residue buildup though.
Are there O rings for insatal LS2 injectors?
THESE ARE SPECIAL O RINGS TO INSATAL LS2 AND UP INJECTORS IN A LS1,6, HOLLY,… Out Of Stock! We will notify you when this product becomes available. INCLUDES EVERTHING NEEDED TO PUT A LS3, LS7, LS9 OR LSA INJECTOR IN A LS1,… Out Of Stock!
Is there a Viton kit for 8 Delphi EV1 injectors?
This is a Viton kit for 8 Delphi EV1 Injectors. Part Number: FICDELPHIKIT Out Of Stock! We will notify you when this product becomes available. Everything you need to install your dual injectors in a GM TBI. Part Number:… Out Of Stock! We will notify you when this product becomes available.