Rocket cryogenic stage (versions)

FIELD: rocketry and space engineering; cryogenic stages of space rockets.

SUBSTANCE: according for first version, oxidizer supply unit is shifted in transversal direction and is secured in lower point of convex part of lower head plate of oxidizer tank, thus forming additional space in inter-tank compartment in axial direction; this space is used for displacement of cruise engine together with fuel tank towards oxidizer tank. According to second version, oxidizer supply unit is secured on concave part of lower head plate of oxidizer tank. Full suction of oxidizer from tank is performed by means of passages of intake unit introduced into concave part of lower head plate of oxidizer tank and used for coupling the lower zone of oxidizer tank with oxidizer supply unit inlet.

EFFECT: improved mass characteristics due to reduction of overall dimensions in length.

2 dwg

 

The invention relates to rocket and space technology, namely the design of the rocket boosters, members of the space rocket, designed to remove from the reference orbit at the working energy of the orbit of various cosmic objects-payloads.

Known missile racks patent RU 2153447, 64 G 1/40, 1/00, 1/16 and EN 2165379, B 64 G 1/00, 1/16, 1/40, containing the main engine, milakovic compartment, farm, pair the unit with booster, oxidizer tank, fuel tank, power supply oxidant fixed on the bottom plate of the tank oxidizer in his pin point farm interface unit payload.

A prototype of the proposed unit adopted a block patent RU 2165379, B 64 G 1/00, 1/16, 1/40.

The disadvantage of analog and prototype is that at the bottom of the tank oxidizer on the lower flange of the bottom fixed the power supply of the oxidant, which occupies a significant part of the axial space magbabago compartment, which leads to the need to increase the length magbabago space by an amount equal to the block length of the feed oxidant, increasing the overall size of unit length and weighting block design.

The objective of the proposed missile unit is to improve the mass properties of the unit by reducing its size in length.

The problem is solved due to the fact that the first is the option in the booster rocket, containing the main engine, the oxidizer tank with a power supply of oxidizer, fuel tank, milakovic compartment, farm, pair the unit with booster, farm interface unit payload, the power supply of the oxidant is fixed at the lowest point of the convex portion of the lower bottom of the tank oxidizer. This convex part of the bottom is displaced in the transverse direction relative to the longitudinal axis of the block, thereby forming additional space in Minakova compartment, which is used to bias the main engine together with the fuel tank to tank oxidizer, resulting in reduced length magbabago compartment and farm pairing the unit with booster, reduces the overall length of the unit and its weight.

The problem is solved due to the fact that the second option in the booster rocket, containing the main engine, the oxidizer tank with a power supply of oxidizer, fuel tank, milakovic compartment, farm, pair the unit with booster, farm interface unit payload, the power supply of the oxidant is pinned to the lower part of the bottom of the tank oxidizer, which is concave on the inside of the tank oxidizer. Full fence oxidizer tank is provided with channels suction device connecting the lower zone of the tank oxidizer to the entrance of the feed block oxidant. Thus, there is an additional p the stranstvo in Minakova compartment, which is used to bias the main engine together with the fuel tank to tank oxidizer, resulting in reduced length magbabago compartment and farm pairing the unit with booster, reduces the overall length of the unit and its weight.

Figures 1 and 2 show two possible designs of rocket upper stage, where:

1 - oxidizer tank;

2 - fuel tank;

3 - main engine;

4 - milakovic compartment;

5 - the power supply of the oxidant;

6 - convex portion of the lower bottom of the tank oxidizer;

7 - farm interface unit payload;

8 - channel suction device;

9 - concave part of the lower bottom of the tank oxidizer;

10 - farm mates with the booster.

In the first variant of rocket upper stage block containing the main engine 3, the oxidizer tank 1, fuel tank 2, milakovic compartment 4, farm, pair the unit with booster 10, farm interface unit payload 7, the power supply of the oxidizer 5 is displaced in the transverse direction of the block and secured at the bottom of the convex portion of the lower bottom of the tank oxidizer 6.

Thus, in Minakova compartment 4 in the axial direction of the block is formed of additional space, which is used to bias the main engine 3, together with the fuel tank 2 to tank oxidizer 1, resulting in reduce the I length magbabago compartment 4 and the farm pairing the unit with booster 10, reduced overall length of the unit and its weight.

In the second variant of rocket upper stage block containing the main engine 3, the oxidizer tank 1 with a power supply of the oxidizer 5, fuel tank 2, milakovic compartment 4, farm, pair the unit with booster 10, farm interface unit payload 7, the power supply of the oxidizer 5 is fixed on the concave portion of the lower bottom of the tank oxidizer 9. Full fence oxidizer tank is provided with channels suction device 8 is introduced into the concave portion of the lower bottom of the tank oxidizer 9 and connecting the lower zone of the tank oxidizer 1 block inlet feed oxidant 5. This produces additional space in Minakova compartment 4, which is used to bias the main engine 3, together with the fuel tank 2 to tank oxidizer 1, resulting in reduced length magbabago compartment 4 and the farm pairing the unit with booster 10, reduced overall length of the unit and its weight.

Proposed rocket upper stage operates as follows.

External inertial loads arising from the operation unit both in flight and during transportation, perceived power circuit including farm mates with the booster 10, the fuel tank 2, milakovic compartment 4 and farm mates payload 7.

Radial forces the t tank oxidizer 1 and main engine 3 perceived upper frame magbabago compartment 4.

The intake oxidant from the tank 1 in the first embodiment is carried out using unit supply oxidant to 5, placed at the bottom point of the convex portion of the lower bottom of the tank oxidizer 6.

In the second embodiment, the intake oxidant from the lower zone of the tank 1 by using channels of suction device 8, which connect the area with the entrance to the power supply of the oxidant 5.

The choice of shape and size of the convex portion of the lower bottom of the tank oxidizer 6 in the first embodiment is determined from the conditions of minimum residue Nesebar component in the tank 1, and the choice of the radius of concavity of the concave part of the lower bottom of the tank oxidizer 9 in the second embodiment is determined from the conditions for obtaining the maximum free space in Minakova compartment 4.

The increase in the mass of the block ~0,1% by introducing a convex portion of the lower bottom of the tank oxidizer 6 in the first embodiment and the concave part of the lower bottom of the oxidizer tank 9 according to the second variant is compensated by the reduced mass of the block is ~2.5% by reducing the length magbabago compartment 4 and the length of the farm mates with the booster 10.

Reducing the amount of oxidizer tank 1 in the second embodiment, on ~0,3% is within the tolerance of the total oxidizer tank 1 and does not change the volume of the fuel tank 2.

1. Rocket upper stage containing the main engine, tanks oxidizer and fuel, milakovic use is, farm interface unit payload farm pairing the unit with a booster, the power supply of the oxidizing agent, characterized in that at the bottom the bottom of the tank oxidizer is made convex portion, which is offset in the transverse direction from the longitudinal axis of the block, at the bottom of which is attached the power supply of the oxidant.

2. Rocket upper stage containing the main engine, tanks oxidizer and fuel, milakovic compartment, farm mates payload farm pairing the unit with a booster, the power supply of the oxidizing agent, characterized in that at the bottom the bottom of the tank oxidizer is made concave portion, on which are fixed the power supply of the oxidant, and part of which entered the channels of the suction device connecting the lower zone of the tank oxidizer input unit feed oxidant.



 

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2 dwg

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2 dwg

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